From 270770d7d7bc78b46813d43a0b7ef34c601c8aa3 Mon Sep 17 00:00:00 2001
From: Chris Lu <chris.lu@gmail.com>
Date: Sat, 7 Aug 2021 14:18:53 -0700
Subject: [PATCH] refactor

---
 weed/pb/volume_server.proto                  |   43 +-
 weed/pb/volume_server_pb/volume_server.pb.go | 1192 +++++++++---------
 weed/server/volume_grpc_read_write.go        |   38 -
 weed/server/volume_grpc_remote.go            |   49 +
 4 files changed, 671 insertions(+), 651 deletions(-)
 create mode 100644 weed/server/volume_grpc_remote.go

diff --git a/weed/pb/volume_server.proto b/weed/pb/volume_server.proto
index dd263ae38..b1f2487ba 100644
--- a/weed/pb/volume_server.proto
+++ b/weed/pb/volume_server.proto
@@ -56,8 +56,6 @@ service VolumeServer {
     }
     rpc WriteNeedleBlob (WriteNeedleBlobRequest) returns (WriteNeedleBlobResponse) {
     }
-    rpc FetchAndWriteNeedle (FetchAndWriteNeedleRequest) returns (FetchAndWriteNeedleResponse) {
-    }
 
     rpc VolumeTailSender (VolumeTailSenderRequest) returns (stream VolumeTailSenderResponse) {
     }
@@ -95,6 +93,10 @@ service VolumeServer {
     rpc VolumeServerLeave (VolumeServerLeaveRequest) returns (VolumeServerLeaveResponse) {
     }
 
+    // remote storage
+    rpc FetchAndWriteNeedle (FetchAndWriteNeedleRequest) returns (FetchAndWriteNeedleResponse) {
+    }
+
     // <experimental> query
     rpc Query (QueryRequest) returns (stream QueriedStripe) {
     }
@@ -278,23 +280,6 @@ message WriteNeedleBlobRequest {
 }
 message WriteNeedleBlobResponse {
 }
-message FetchAndWriteNeedleRequest {
-    uint32 volume_id = 1;
-    uint64 needle_id = 2;
-    int64 offset = 3;
-    int64 size = 4;
-    // remote info
-    string remote_type = 5;
-    string remote_name = 6;
-    string s3_access_key = 8;
-    string s3_secret_key = 9;
-    string s3_region = 10;
-    string s3_endpoint = 11;
-    string remote_bucket = 12;
-    string remote_key = 13;
-}
-message FetchAndWriteNeedleResponse {
-}
 
 message VolumeTailSenderRequest {
     uint32 volume_id = 1;
@@ -445,6 +430,7 @@ message VolumeInfo {
     string replication = 3;
 }
 
+// tiered storage
 message VolumeTierMoveDatToRemoteRequest {
     uint32 volume_id = 1;
     string collection = 2;
@@ -479,6 +465,25 @@ message VolumeServerLeaveRequest {
 message VolumeServerLeaveResponse {
 }
 
+// remote storage
+message FetchAndWriteNeedleRequest {
+    uint32 volume_id = 1;
+    uint64 needle_id = 2;
+    int64 offset = 3;
+    int64 size = 4;
+    // remote conf
+    string remote_type = 5;
+    string remote_name = 6;
+    string s3_access_key = 8;
+    string s3_secret_key = 9;
+    string s3_region = 10;
+    string s3_endpoint = 11;
+    string remote_bucket = 12;
+    string remote_key = 13;
+}
+message FetchAndWriteNeedleResponse {
+}
+
 // select on volume servers
 message QueryRequest {
     repeated string selections = 1;
diff --git a/weed/pb/volume_server_pb/volume_server.pb.go b/weed/pb/volume_server_pb/volume_server.pb.go
index 730751d84..b360349e4 100644
--- a/weed/pb/volume_server_pb/volume_server.pb.go
+++ b/weed/pb/volume_server_pb/volume_server.pb.go
@@ -2200,180 +2200,6 @@ func (*WriteNeedleBlobResponse) Descriptor() ([]byte, []int) {
 	return file_volume_server_proto_rawDescGZIP(), []int{41}
 }
 
-type FetchAndWriteNeedleRequest struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	VolumeId uint32 `protobuf:"varint,1,opt,name=volume_id,json=volumeId,proto3" json:"volume_id,omitempty"`
-	NeedleId uint64 `protobuf:"varint,2,opt,name=needle_id,json=needleId,proto3" json:"needle_id,omitempty"`
-	Offset   int64  `protobuf:"varint,3,opt,name=offset,proto3" json:"offset,omitempty"`
-	Size     int64  `protobuf:"varint,4,opt,name=size,proto3" json:"size,omitempty"`
-	// remote info
-	RemoteType   string `protobuf:"bytes,5,opt,name=remote_type,json=remoteType,proto3" json:"remote_type,omitempty"`
-	RemoteName   string `protobuf:"bytes,6,opt,name=remote_name,json=remoteName,proto3" json:"remote_name,omitempty"`
-	S3AccessKey  string `protobuf:"bytes,8,opt,name=s3_access_key,json=s3AccessKey,proto3" json:"s3_access_key,omitempty"`
-	S3SecretKey  string `protobuf:"bytes,9,opt,name=s3_secret_key,json=s3SecretKey,proto3" json:"s3_secret_key,omitempty"`
-	S3Region     string `protobuf:"bytes,10,opt,name=s3_region,json=s3Region,proto3" json:"s3_region,omitempty"`
-	S3Endpoint   string `protobuf:"bytes,11,opt,name=s3_endpoint,json=s3Endpoint,proto3" json:"s3_endpoint,omitempty"`
-	RemoteBucket string `protobuf:"bytes,12,opt,name=remote_bucket,json=remoteBucket,proto3" json:"remote_bucket,omitempty"`
-	RemoteKey    string `protobuf:"bytes,13,opt,name=remote_key,json=remoteKey,proto3" json:"remote_key,omitempty"`
-}
-
-func (x *FetchAndWriteNeedleRequest) Reset() {
-	*x = FetchAndWriteNeedleRequest{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_volume_server_proto_msgTypes[42]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *FetchAndWriteNeedleRequest) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*FetchAndWriteNeedleRequest) ProtoMessage() {}
-
-func (x *FetchAndWriteNeedleRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_volume_server_proto_msgTypes[42]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use FetchAndWriteNeedleRequest.ProtoReflect.Descriptor instead.
-func (*FetchAndWriteNeedleRequest) Descriptor() ([]byte, []int) {
-	return file_volume_server_proto_rawDescGZIP(), []int{42}
-}
-
-func (x *FetchAndWriteNeedleRequest) GetVolumeId() uint32 {
-	if x != nil {
-		return x.VolumeId
-	}
-	return 0
-}
-
-func (x *FetchAndWriteNeedleRequest) GetNeedleId() uint64 {
-	if x != nil {
-		return x.NeedleId
-	}
-	return 0
-}
-
-func (x *FetchAndWriteNeedleRequest) GetOffset() int64 {
-	if x != nil {
-		return x.Offset
-	}
-	return 0
-}
-
-func (x *FetchAndWriteNeedleRequest) GetSize() int64 {
-	if x != nil {
-		return x.Size
-	}
-	return 0
-}
-
-func (x *FetchAndWriteNeedleRequest) GetRemoteType() string {
-	if x != nil {
-		return x.RemoteType
-	}
-	return ""
-}
-
-func (x *FetchAndWriteNeedleRequest) GetRemoteName() string {
-	if x != nil {
-		return x.RemoteName
-	}
-	return ""
-}
-
-func (x *FetchAndWriteNeedleRequest) GetS3AccessKey() string {
-	if x != nil {
-		return x.S3AccessKey
-	}
-	return ""
-}
-
-func (x *FetchAndWriteNeedleRequest) GetS3SecretKey() string {
-	if x != nil {
-		return x.S3SecretKey
-	}
-	return ""
-}
-
-func (x *FetchAndWriteNeedleRequest) GetS3Region() string {
-	if x != nil {
-		return x.S3Region
-	}
-	return ""
-}
-
-func (x *FetchAndWriteNeedleRequest) GetS3Endpoint() string {
-	if x != nil {
-		return x.S3Endpoint
-	}
-	return ""
-}
-
-func (x *FetchAndWriteNeedleRequest) GetRemoteBucket() string {
-	if x != nil {
-		return x.RemoteBucket
-	}
-	return ""
-}
-
-func (x *FetchAndWriteNeedleRequest) GetRemoteKey() string {
-	if x != nil {
-		return x.RemoteKey
-	}
-	return ""
-}
-
-type FetchAndWriteNeedleResponse struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-}
-
-func (x *FetchAndWriteNeedleResponse) Reset() {
-	*x = FetchAndWriteNeedleResponse{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_volume_server_proto_msgTypes[43]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *FetchAndWriteNeedleResponse) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*FetchAndWriteNeedleResponse) ProtoMessage() {}
-
-func (x *FetchAndWriteNeedleResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_volume_server_proto_msgTypes[43]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use FetchAndWriteNeedleResponse.ProtoReflect.Descriptor instead.
-func (*FetchAndWriteNeedleResponse) Descriptor() ([]byte, []int) {
-	return file_volume_server_proto_rawDescGZIP(), []int{43}
-}
-
 type VolumeTailSenderRequest struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -2387,7 +2213,7 @@ type VolumeTailSenderRequest struct {
 func (x *VolumeTailSenderRequest) Reset() {
 	*x = VolumeTailSenderRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_volume_server_proto_msgTypes[44]
+		mi := &file_volume_server_proto_msgTypes[42]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -2400,7 +2226,7 @@ func (x *VolumeTailSenderRequest) String() string {
 func (*VolumeTailSenderRequest) ProtoMessage() {}
 
 func (x *VolumeTailSenderRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_volume_server_proto_msgTypes[44]
+	mi := &file_volume_server_proto_msgTypes[42]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -2413,7 +2239,7 @@ func (x *VolumeTailSenderRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use VolumeTailSenderRequest.ProtoReflect.Descriptor instead.
 func (*VolumeTailSenderRequest) Descriptor() ([]byte, []int) {
-	return file_volume_server_proto_rawDescGZIP(), []int{44}
+	return file_volume_server_proto_rawDescGZIP(), []int{42}
 }
 
 func (x *VolumeTailSenderRequest) GetVolumeId() uint32 {
@@ -2450,7 +2276,7 @@ type VolumeTailSenderResponse struct {
 func (x *VolumeTailSenderResponse) Reset() {
 	*x = VolumeTailSenderResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_volume_server_proto_msgTypes[45]
+		mi := &file_volume_server_proto_msgTypes[43]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -2463,7 +2289,7 @@ func (x *VolumeTailSenderResponse) String() string {
 func (*VolumeTailSenderResponse) ProtoMessage() {}
 
 func (x *VolumeTailSenderResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_volume_server_proto_msgTypes[45]
+	mi := &file_volume_server_proto_msgTypes[43]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -2476,7 +2302,7 @@ func (x *VolumeTailSenderResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use VolumeTailSenderResponse.ProtoReflect.Descriptor instead.
 func (*VolumeTailSenderResponse) Descriptor() ([]byte, []int) {
-	return file_volume_server_proto_rawDescGZIP(), []int{45}
+	return file_volume_server_proto_rawDescGZIP(), []int{43}
 }
 
 func (x *VolumeTailSenderResponse) GetNeedleHeader() []byte {
@@ -2514,7 +2340,7 @@ type VolumeTailReceiverRequest struct {
 func (x *VolumeTailReceiverRequest) Reset() {
 	*x = VolumeTailReceiverRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_volume_server_proto_msgTypes[46]
+		mi := &file_volume_server_proto_msgTypes[44]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -2527,7 +2353,7 @@ func (x *VolumeTailReceiverRequest) String() string {
 func (*VolumeTailReceiverRequest) ProtoMessage() {}
 
 func (x *VolumeTailReceiverRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_volume_server_proto_msgTypes[46]
+	mi := &file_volume_server_proto_msgTypes[44]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -2540,7 +2366,7 @@ func (x *VolumeTailReceiverRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use VolumeTailReceiverRequest.ProtoReflect.Descriptor instead.
 func (*VolumeTailReceiverRequest) Descriptor() ([]byte, []int) {
-	return file_volume_server_proto_rawDescGZIP(), []int{46}
+	return file_volume_server_proto_rawDescGZIP(), []int{44}
 }
 
 func (x *VolumeTailReceiverRequest) GetVolumeId() uint32 {
@@ -2580,7 +2406,7 @@ type VolumeTailReceiverResponse struct {
 func (x *VolumeTailReceiverResponse) Reset() {
 	*x = VolumeTailReceiverResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_volume_server_proto_msgTypes[47]
+		mi := &file_volume_server_proto_msgTypes[45]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -2593,7 +2419,7 @@ func (x *VolumeTailReceiverResponse) String() string {
 func (*VolumeTailReceiverResponse) ProtoMessage() {}
 
 func (x *VolumeTailReceiverResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_volume_server_proto_msgTypes[47]
+	mi := &file_volume_server_proto_msgTypes[45]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -2606,7 +2432,7 @@ func (x *VolumeTailReceiverResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use VolumeTailReceiverResponse.ProtoReflect.Descriptor instead.
 func (*VolumeTailReceiverResponse) Descriptor() ([]byte, []int) {
-	return file_volume_server_proto_rawDescGZIP(), []int{47}
+	return file_volume_server_proto_rawDescGZIP(), []int{45}
 }
 
 type VolumeEcShardsGenerateRequest struct {
@@ -2621,7 +2447,7 @@ type VolumeEcShardsGenerateRequest struct {
 func (x *VolumeEcShardsGenerateRequest) Reset() {
 	*x = VolumeEcShardsGenerateRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_volume_server_proto_msgTypes[48]
+		mi := &file_volume_server_proto_msgTypes[46]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -2634,7 +2460,7 @@ func (x *VolumeEcShardsGenerateRequest) String() string {
 func (*VolumeEcShardsGenerateRequest) ProtoMessage() {}
 
 func (x *VolumeEcShardsGenerateRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_volume_server_proto_msgTypes[48]
+	mi := &file_volume_server_proto_msgTypes[46]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -2647,7 +2473,7 @@ func (x *VolumeEcShardsGenerateRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use VolumeEcShardsGenerateRequest.ProtoReflect.Descriptor instead.
 func (*VolumeEcShardsGenerateRequest) Descriptor() ([]byte, []int) {
-	return file_volume_server_proto_rawDescGZIP(), []int{48}
+	return file_volume_server_proto_rawDescGZIP(), []int{46}
 }
 
 func (x *VolumeEcShardsGenerateRequest) GetVolumeId() uint32 {
@@ -2673,7 +2499,7 @@ type VolumeEcShardsGenerateResponse struct {
 func (x *VolumeEcShardsGenerateResponse) Reset() {
 	*x = VolumeEcShardsGenerateResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_volume_server_proto_msgTypes[49]
+		mi := &file_volume_server_proto_msgTypes[47]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -2686,7 +2512,7 @@ func (x *VolumeEcShardsGenerateResponse) String() string {
 func (*VolumeEcShardsGenerateResponse) ProtoMessage() {}
 
 func (x *VolumeEcShardsGenerateResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_volume_server_proto_msgTypes[49]
+	mi := &file_volume_server_proto_msgTypes[47]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -2699,7 +2525,7 @@ func (x *VolumeEcShardsGenerateResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use VolumeEcShardsGenerateResponse.ProtoReflect.Descriptor instead.
 func (*VolumeEcShardsGenerateResponse) Descriptor() ([]byte, []int) {
-	return file_volume_server_proto_rawDescGZIP(), []int{49}
+	return file_volume_server_proto_rawDescGZIP(), []int{47}
 }
 
 type VolumeEcShardsRebuildRequest struct {
@@ -2714,7 +2540,7 @@ type VolumeEcShardsRebuildRequest struct {
 func (x *VolumeEcShardsRebuildRequest) Reset() {
 	*x = VolumeEcShardsRebuildRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_volume_server_proto_msgTypes[50]
+		mi := &file_volume_server_proto_msgTypes[48]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -2727,7 +2553,7 @@ func (x *VolumeEcShardsRebuildRequest) String() string {
 func (*VolumeEcShardsRebuildRequest) ProtoMessage() {}
 
 func (x *VolumeEcShardsRebuildRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_volume_server_proto_msgTypes[50]
+	mi := &file_volume_server_proto_msgTypes[48]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -2740,7 +2566,7 @@ func (x *VolumeEcShardsRebuildRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use VolumeEcShardsRebuildRequest.ProtoReflect.Descriptor instead.
 func (*VolumeEcShardsRebuildRequest) Descriptor() ([]byte, []int) {
-	return file_volume_server_proto_rawDescGZIP(), []int{50}
+	return file_volume_server_proto_rawDescGZIP(), []int{48}
 }
 
 func (x *VolumeEcShardsRebuildRequest) GetVolumeId() uint32 {
@@ -2768,7 +2594,7 @@ type VolumeEcShardsRebuildResponse struct {
 func (x *VolumeEcShardsRebuildResponse) Reset() {
 	*x = VolumeEcShardsRebuildResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_volume_server_proto_msgTypes[51]
+		mi := &file_volume_server_proto_msgTypes[49]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -2781,7 +2607,7 @@ func (x *VolumeEcShardsRebuildResponse) String() string {
 func (*VolumeEcShardsRebuildResponse) ProtoMessage() {}
 
 func (x *VolumeEcShardsRebuildResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_volume_server_proto_msgTypes[51]
+	mi := &file_volume_server_proto_msgTypes[49]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -2794,7 +2620,7 @@ func (x *VolumeEcShardsRebuildResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use VolumeEcShardsRebuildResponse.ProtoReflect.Descriptor instead.
 func (*VolumeEcShardsRebuildResponse) Descriptor() ([]byte, []int) {
-	return file_volume_server_proto_rawDescGZIP(), []int{51}
+	return file_volume_server_proto_rawDescGZIP(), []int{49}
 }
 
 func (x *VolumeEcShardsRebuildResponse) GetRebuiltShardIds() []uint32 {
@@ -2821,7 +2647,7 @@ type VolumeEcShardsCopyRequest struct {
 func (x *VolumeEcShardsCopyRequest) Reset() {
 	*x = VolumeEcShardsCopyRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_volume_server_proto_msgTypes[52]
+		mi := &file_volume_server_proto_msgTypes[50]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -2834,7 +2660,7 @@ func (x *VolumeEcShardsCopyRequest) String() string {
 func (*VolumeEcShardsCopyRequest) ProtoMessage() {}
 
 func (x *VolumeEcShardsCopyRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_volume_server_proto_msgTypes[52]
+	mi := &file_volume_server_proto_msgTypes[50]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -2847,7 +2673,7 @@ func (x *VolumeEcShardsCopyRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use VolumeEcShardsCopyRequest.ProtoReflect.Descriptor instead.
 func (*VolumeEcShardsCopyRequest) Descriptor() ([]byte, []int) {
-	return file_volume_server_proto_rawDescGZIP(), []int{52}
+	return file_volume_server_proto_rawDescGZIP(), []int{50}
 }
 
 func (x *VolumeEcShardsCopyRequest) GetVolumeId() uint32 {
@@ -2908,7 +2734,7 @@ type VolumeEcShardsCopyResponse struct {
 func (x *VolumeEcShardsCopyResponse) Reset() {
 	*x = VolumeEcShardsCopyResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_volume_server_proto_msgTypes[53]
+		mi := &file_volume_server_proto_msgTypes[51]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -2921,7 +2747,7 @@ func (x *VolumeEcShardsCopyResponse) String() string {
 func (*VolumeEcShardsCopyResponse) ProtoMessage() {}
 
 func (x *VolumeEcShardsCopyResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_volume_server_proto_msgTypes[53]
+	mi := &file_volume_server_proto_msgTypes[51]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -2934,7 +2760,7 @@ func (x *VolumeEcShardsCopyResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use VolumeEcShardsCopyResponse.ProtoReflect.Descriptor instead.
 func (*VolumeEcShardsCopyResponse) Descriptor() ([]byte, []int) {
-	return file_volume_server_proto_rawDescGZIP(), []int{53}
+	return file_volume_server_proto_rawDescGZIP(), []int{51}
 }
 
 type VolumeEcShardsDeleteRequest struct {
@@ -2950,7 +2776,7 @@ type VolumeEcShardsDeleteRequest struct {
 func (x *VolumeEcShardsDeleteRequest) Reset() {
 	*x = VolumeEcShardsDeleteRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_volume_server_proto_msgTypes[54]
+		mi := &file_volume_server_proto_msgTypes[52]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -2963,7 +2789,7 @@ func (x *VolumeEcShardsDeleteRequest) String() string {
 func (*VolumeEcShardsDeleteRequest) ProtoMessage() {}
 
 func (x *VolumeEcShardsDeleteRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_volume_server_proto_msgTypes[54]
+	mi := &file_volume_server_proto_msgTypes[52]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -2976,7 +2802,7 @@ func (x *VolumeEcShardsDeleteRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use VolumeEcShardsDeleteRequest.ProtoReflect.Descriptor instead.
 func (*VolumeEcShardsDeleteRequest) Descriptor() ([]byte, []int) {
-	return file_volume_server_proto_rawDescGZIP(), []int{54}
+	return file_volume_server_proto_rawDescGZIP(), []int{52}
 }
 
 func (x *VolumeEcShardsDeleteRequest) GetVolumeId() uint32 {
@@ -3009,7 +2835,7 @@ type VolumeEcShardsDeleteResponse struct {
 func (x *VolumeEcShardsDeleteResponse) Reset() {
 	*x = VolumeEcShardsDeleteResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_volume_server_proto_msgTypes[55]
+		mi := &file_volume_server_proto_msgTypes[53]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -3022,7 +2848,7 @@ func (x *VolumeEcShardsDeleteResponse) String() string {
 func (*VolumeEcShardsDeleteResponse) ProtoMessage() {}
 
 func (x *VolumeEcShardsDeleteResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_volume_server_proto_msgTypes[55]
+	mi := &file_volume_server_proto_msgTypes[53]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -3035,7 +2861,7 @@ func (x *VolumeEcShardsDeleteResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use VolumeEcShardsDeleteResponse.ProtoReflect.Descriptor instead.
 func (*VolumeEcShardsDeleteResponse) Descriptor() ([]byte, []int) {
-	return file_volume_server_proto_rawDescGZIP(), []int{55}
+	return file_volume_server_proto_rawDescGZIP(), []int{53}
 }
 
 type VolumeEcShardsMountRequest struct {
@@ -3051,7 +2877,7 @@ type VolumeEcShardsMountRequest struct {
 func (x *VolumeEcShardsMountRequest) Reset() {
 	*x = VolumeEcShardsMountRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_volume_server_proto_msgTypes[56]
+		mi := &file_volume_server_proto_msgTypes[54]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -3064,7 +2890,7 @@ func (x *VolumeEcShardsMountRequest) String() string {
 func (*VolumeEcShardsMountRequest) ProtoMessage() {}
 
 func (x *VolumeEcShardsMountRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_volume_server_proto_msgTypes[56]
+	mi := &file_volume_server_proto_msgTypes[54]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -3077,7 +2903,7 @@ func (x *VolumeEcShardsMountRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use VolumeEcShardsMountRequest.ProtoReflect.Descriptor instead.
 func (*VolumeEcShardsMountRequest) Descriptor() ([]byte, []int) {
-	return file_volume_server_proto_rawDescGZIP(), []int{56}
+	return file_volume_server_proto_rawDescGZIP(), []int{54}
 }
 
 func (x *VolumeEcShardsMountRequest) GetVolumeId() uint32 {
@@ -3110,7 +2936,7 @@ type VolumeEcShardsMountResponse struct {
 func (x *VolumeEcShardsMountResponse) Reset() {
 	*x = VolumeEcShardsMountResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_volume_server_proto_msgTypes[57]
+		mi := &file_volume_server_proto_msgTypes[55]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -3123,7 +2949,7 @@ func (x *VolumeEcShardsMountResponse) String() string {
 func (*VolumeEcShardsMountResponse) ProtoMessage() {}
 
 func (x *VolumeEcShardsMountResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_volume_server_proto_msgTypes[57]
+	mi := &file_volume_server_proto_msgTypes[55]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -3136,7 +2962,7 @@ func (x *VolumeEcShardsMountResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use VolumeEcShardsMountResponse.ProtoReflect.Descriptor instead.
 func (*VolumeEcShardsMountResponse) Descriptor() ([]byte, []int) {
-	return file_volume_server_proto_rawDescGZIP(), []int{57}
+	return file_volume_server_proto_rawDescGZIP(), []int{55}
 }
 
 type VolumeEcShardsUnmountRequest struct {
@@ -3151,7 +2977,7 @@ type VolumeEcShardsUnmountRequest struct {
 func (x *VolumeEcShardsUnmountRequest) Reset() {
 	*x = VolumeEcShardsUnmountRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_volume_server_proto_msgTypes[58]
+		mi := &file_volume_server_proto_msgTypes[56]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -3164,7 +2990,7 @@ func (x *VolumeEcShardsUnmountRequest) String() string {
 func (*VolumeEcShardsUnmountRequest) ProtoMessage() {}
 
 func (x *VolumeEcShardsUnmountRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_volume_server_proto_msgTypes[58]
+	mi := &file_volume_server_proto_msgTypes[56]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -3177,7 +3003,7 @@ func (x *VolumeEcShardsUnmountRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use VolumeEcShardsUnmountRequest.ProtoReflect.Descriptor instead.
 func (*VolumeEcShardsUnmountRequest) Descriptor() ([]byte, []int) {
-	return file_volume_server_proto_rawDescGZIP(), []int{58}
+	return file_volume_server_proto_rawDescGZIP(), []int{56}
 }
 
 func (x *VolumeEcShardsUnmountRequest) GetVolumeId() uint32 {
@@ -3203,7 +3029,7 @@ type VolumeEcShardsUnmountResponse struct {
 func (x *VolumeEcShardsUnmountResponse) Reset() {
 	*x = VolumeEcShardsUnmountResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_volume_server_proto_msgTypes[59]
+		mi := &file_volume_server_proto_msgTypes[57]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -3216,7 +3042,7 @@ func (x *VolumeEcShardsUnmountResponse) String() string {
 func (*VolumeEcShardsUnmountResponse) ProtoMessage() {}
 
 func (x *VolumeEcShardsUnmountResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_volume_server_proto_msgTypes[59]
+	mi := &file_volume_server_proto_msgTypes[57]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -3229,7 +3055,7 @@ func (x *VolumeEcShardsUnmountResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use VolumeEcShardsUnmountResponse.ProtoReflect.Descriptor instead.
 func (*VolumeEcShardsUnmountResponse) Descriptor() ([]byte, []int) {
-	return file_volume_server_proto_rawDescGZIP(), []int{59}
+	return file_volume_server_proto_rawDescGZIP(), []int{57}
 }
 
 type VolumeEcShardReadRequest struct {
@@ -3247,7 +3073,7 @@ type VolumeEcShardReadRequest struct {
 func (x *VolumeEcShardReadRequest) Reset() {
 	*x = VolumeEcShardReadRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_volume_server_proto_msgTypes[60]
+		mi := &file_volume_server_proto_msgTypes[58]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -3260,7 +3086,7 @@ func (x *VolumeEcShardReadRequest) String() string {
 func (*VolumeEcShardReadRequest) ProtoMessage() {}
 
 func (x *VolumeEcShardReadRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_volume_server_proto_msgTypes[60]
+	mi := &file_volume_server_proto_msgTypes[58]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -3273,7 +3099,7 @@ func (x *VolumeEcShardReadRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use VolumeEcShardReadRequest.ProtoReflect.Descriptor instead.
 func (*VolumeEcShardReadRequest) Descriptor() ([]byte, []int) {
-	return file_volume_server_proto_rawDescGZIP(), []int{60}
+	return file_volume_server_proto_rawDescGZIP(), []int{58}
 }
 
 func (x *VolumeEcShardReadRequest) GetVolumeId() uint32 {
@@ -3323,7 +3149,7 @@ type VolumeEcShardReadResponse struct {
 func (x *VolumeEcShardReadResponse) Reset() {
 	*x = VolumeEcShardReadResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_volume_server_proto_msgTypes[61]
+		mi := &file_volume_server_proto_msgTypes[59]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -3336,7 +3162,7 @@ func (x *VolumeEcShardReadResponse) String() string {
 func (*VolumeEcShardReadResponse) ProtoMessage() {}
 
 func (x *VolumeEcShardReadResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_volume_server_proto_msgTypes[61]
+	mi := &file_volume_server_proto_msgTypes[59]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -3349,7 +3175,7 @@ func (x *VolumeEcShardReadResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use VolumeEcShardReadResponse.ProtoReflect.Descriptor instead.
 func (*VolumeEcShardReadResponse) Descriptor() ([]byte, []int) {
-	return file_volume_server_proto_rawDescGZIP(), []int{61}
+	return file_volume_server_proto_rawDescGZIP(), []int{59}
 }
 
 func (x *VolumeEcShardReadResponse) GetData() []byte {
@@ -3380,7 +3206,7 @@ type VolumeEcBlobDeleteRequest struct {
 func (x *VolumeEcBlobDeleteRequest) Reset() {
 	*x = VolumeEcBlobDeleteRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_volume_server_proto_msgTypes[62]
+		mi := &file_volume_server_proto_msgTypes[60]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -3393,7 +3219,7 @@ func (x *VolumeEcBlobDeleteRequest) String() string {
 func (*VolumeEcBlobDeleteRequest) ProtoMessage() {}
 
 func (x *VolumeEcBlobDeleteRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_volume_server_proto_msgTypes[62]
+	mi := &file_volume_server_proto_msgTypes[60]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -3406,7 +3232,7 @@ func (x *VolumeEcBlobDeleteRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use VolumeEcBlobDeleteRequest.ProtoReflect.Descriptor instead.
 func (*VolumeEcBlobDeleteRequest) Descriptor() ([]byte, []int) {
-	return file_volume_server_proto_rawDescGZIP(), []int{62}
+	return file_volume_server_proto_rawDescGZIP(), []int{60}
 }
 
 func (x *VolumeEcBlobDeleteRequest) GetVolumeId() uint32 {
@@ -3446,7 +3272,7 @@ type VolumeEcBlobDeleteResponse struct {
 func (x *VolumeEcBlobDeleteResponse) Reset() {
 	*x = VolumeEcBlobDeleteResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_volume_server_proto_msgTypes[63]
+		mi := &file_volume_server_proto_msgTypes[61]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -3459,7 +3285,7 @@ func (x *VolumeEcBlobDeleteResponse) String() string {
 func (*VolumeEcBlobDeleteResponse) ProtoMessage() {}
 
 func (x *VolumeEcBlobDeleteResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_volume_server_proto_msgTypes[63]
+	mi := &file_volume_server_proto_msgTypes[61]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -3472,7 +3298,7 @@ func (x *VolumeEcBlobDeleteResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use VolumeEcBlobDeleteResponse.ProtoReflect.Descriptor instead.
 func (*VolumeEcBlobDeleteResponse) Descriptor() ([]byte, []int) {
-	return file_volume_server_proto_rawDescGZIP(), []int{63}
+	return file_volume_server_proto_rawDescGZIP(), []int{61}
 }
 
 type VolumeEcShardsToVolumeRequest struct {
@@ -3487,7 +3313,7 @@ type VolumeEcShardsToVolumeRequest struct {
 func (x *VolumeEcShardsToVolumeRequest) Reset() {
 	*x = VolumeEcShardsToVolumeRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_volume_server_proto_msgTypes[64]
+		mi := &file_volume_server_proto_msgTypes[62]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -3500,7 +3326,7 @@ func (x *VolumeEcShardsToVolumeRequest) String() string {
 func (*VolumeEcShardsToVolumeRequest) ProtoMessage() {}
 
 func (x *VolumeEcShardsToVolumeRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_volume_server_proto_msgTypes[64]
+	mi := &file_volume_server_proto_msgTypes[62]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -3513,7 +3339,7 @@ func (x *VolumeEcShardsToVolumeRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use VolumeEcShardsToVolumeRequest.ProtoReflect.Descriptor instead.
 func (*VolumeEcShardsToVolumeRequest) Descriptor() ([]byte, []int) {
-	return file_volume_server_proto_rawDescGZIP(), []int{64}
+	return file_volume_server_proto_rawDescGZIP(), []int{62}
 }
 
 func (x *VolumeEcShardsToVolumeRequest) GetVolumeId() uint32 {
@@ -3539,7 +3365,7 @@ type VolumeEcShardsToVolumeResponse struct {
 func (x *VolumeEcShardsToVolumeResponse) Reset() {
 	*x = VolumeEcShardsToVolumeResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_volume_server_proto_msgTypes[65]
+		mi := &file_volume_server_proto_msgTypes[63]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -3552,7 +3378,7 @@ func (x *VolumeEcShardsToVolumeResponse) String() string {
 func (*VolumeEcShardsToVolumeResponse) ProtoMessage() {}
 
 func (x *VolumeEcShardsToVolumeResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_volume_server_proto_msgTypes[65]
+	mi := &file_volume_server_proto_msgTypes[63]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -3565,7 +3391,7 @@ func (x *VolumeEcShardsToVolumeResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use VolumeEcShardsToVolumeResponse.ProtoReflect.Descriptor instead.
 func (*VolumeEcShardsToVolumeResponse) Descriptor() ([]byte, []int) {
-	return file_volume_server_proto_rawDescGZIP(), []int{65}
+	return file_volume_server_proto_rawDescGZIP(), []int{63}
 }
 
 type ReadVolumeFileStatusRequest struct {
@@ -3579,7 +3405,7 @@ type ReadVolumeFileStatusRequest struct {
 func (x *ReadVolumeFileStatusRequest) Reset() {
 	*x = ReadVolumeFileStatusRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_volume_server_proto_msgTypes[66]
+		mi := &file_volume_server_proto_msgTypes[64]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -3592,7 +3418,7 @@ func (x *ReadVolumeFileStatusRequest) String() string {
 func (*ReadVolumeFileStatusRequest) ProtoMessage() {}
 
 func (x *ReadVolumeFileStatusRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_volume_server_proto_msgTypes[66]
+	mi := &file_volume_server_proto_msgTypes[64]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -3605,7 +3431,7 @@ func (x *ReadVolumeFileStatusRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ReadVolumeFileStatusRequest.ProtoReflect.Descriptor instead.
 func (*ReadVolumeFileStatusRequest) Descriptor() ([]byte, []int) {
-	return file_volume_server_proto_rawDescGZIP(), []int{66}
+	return file_volume_server_proto_rawDescGZIP(), []int{64}
 }
 
 func (x *ReadVolumeFileStatusRequest) GetVolumeId() uint32 {
@@ -3634,7 +3460,7 @@ type ReadVolumeFileStatusResponse struct {
 func (x *ReadVolumeFileStatusResponse) Reset() {
 	*x = ReadVolumeFileStatusResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_volume_server_proto_msgTypes[67]
+		mi := &file_volume_server_proto_msgTypes[65]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -3647,7 +3473,7 @@ func (x *ReadVolumeFileStatusResponse) String() string {
 func (*ReadVolumeFileStatusResponse) ProtoMessage() {}
 
 func (x *ReadVolumeFileStatusResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_volume_server_proto_msgTypes[67]
+	mi := &file_volume_server_proto_msgTypes[65]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -3660,7 +3486,7 @@ func (x *ReadVolumeFileStatusResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ReadVolumeFileStatusResponse.ProtoReflect.Descriptor instead.
 func (*ReadVolumeFileStatusResponse) Descriptor() ([]byte, []int) {
-	return file_volume_server_proto_rawDescGZIP(), []int{67}
+	return file_volume_server_proto_rawDescGZIP(), []int{65}
 }
 
 func (x *ReadVolumeFileStatusResponse) GetVolumeId() uint32 {
@@ -3743,7 +3569,7 @@ type DiskStatus struct {
 func (x *DiskStatus) Reset() {
 	*x = DiskStatus{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_volume_server_proto_msgTypes[68]
+		mi := &file_volume_server_proto_msgTypes[66]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -3756,7 +3582,7 @@ func (x *DiskStatus) String() string {
 func (*DiskStatus) ProtoMessage() {}
 
 func (x *DiskStatus) ProtoReflect() protoreflect.Message {
-	mi := &file_volume_server_proto_msgTypes[68]
+	mi := &file_volume_server_proto_msgTypes[66]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -3769,7 +3595,7 @@ func (x *DiskStatus) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use DiskStatus.ProtoReflect.Descriptor instead.
 func (*DiskStatus) Descriptor() ([]byte, []int) {
-	return file_volume_server_proto_rawDescGZIP(), []int{68}
+	return file_volume_server_proto_rawDescGZIP(), []int{66}
 }
 
 func (x *DiskStatus) GetDir() string {
@@ -3838,7 +3664,7 @@ type MemStatus struct {
 func (x *MemStatus) Reset() {
 	*x = MemStatus{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_volume_server_proto_msgTypes[69]
+		mi := &file_volume_server_proto_msgTypes[67]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -3851,7 +3677,7 @@ func (x *MemStatus) String() string {
 func (*MemStatus) ProtoMessage() {}
 
 func (x *MemStatus) ProtoReflect() protoreflect.Message {
-	mi := &file_volume_server_proto_msgTypes[69]
+	mi := &file_volume_server_proto_msgTypes[67]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -3864,7 +3690,7 @@ func (x *MemStatus) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use MemStatus.ProtoReflect.Descriptor instead.
 func (*MemStatus) Descriptor() ([]byte, []int) {
-	return file_volume_server_proto_rawDescGZIP(), []int{69}
+	return file_volume_server_proto_rawDescGZIP(), []int{67}
 }
 
 func (x *MemStatus) GetGoroutines() int32 {
@@ -3934,7 +3760,7 @@ type RemoteFile struct {
 func (x *RemoteFile) Reset() {
 	*x = RemoteFile{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_volume_server_proto_msgTypes[70]
+		mi := &file_volume_server_proto_msgTypes[68]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -3947,7 +3773,7 @@ func (x *RemoteFile) String() string {
 func (*RemoteFile) ProtoMessage() {}
 
 func (x *RemoteFile) ProtoReflect() protoreflect.Message {
-	mi := &file_volume_server_proto_msgTypes[70]
+	mi := &file_volume_server_proto_msgTypes[68]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -3960,7 +3786,7 @@ func (x *RemoteFile) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use RemoteFile.ProtoReflect.Descriptor instead.
 func (*RemoteFile) Descriptor() ([]byte, []int) {
-	return file_volume_server_proto_rawDescGZIP(), []int{70}
+	return file_volume_server_proto_rawDescGZIP(), []int{68}
 }
 
 func (x *RemoteFile) GetBackendType() string {
@@ -4025,7 +3851,7 @@ type VolumeInfo struct {
 func (x *VolumeInfo) Reset() {
 	*x = VolumeInfo{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_volume_server_proto_msgTypes[71]
+		mi := &file_volume_server_proto_msgTypes[69]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -4038,7 +3864,7 @@ func (x *VolumeInfo) String() string {
 func (*VolumeInfo) ProtoMessage() {}
 
 func (x *VolumeInfo) ProtoReflect() protoreflect.Message {
-	mi := &file_volume_server_proto_msgTypes[71]
+	mi := &file_volume_server_proto_msgTypes[69]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -4051,7 +3877,7 @@ func (x *VolumeInfo) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use VolumeInfo.ProtoReflect.Descriptor instead.
 func (*VolumeInfo) Descriptor() ([]byte, []int) {
-	return file_volume_server_proto_rawDescGZIP(), []int{71}
+	return file_volume_server_proto_rawDescGZIP(), []int{69}
 }
 
 func (x *VolumeInfo) GetFiles() []*RemoteFile {
@@ -4075,6 +3901,7 @@ func (x *VolumeInfo) GetReplication() string {
 	return ""
 }
 
+// tiered storage
 type VolumeTierMoveDatToRemoteRequest struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -4089,7 +3916,7 @@ type VolumeTierMoveDatToRemoteRequest struct {
 func (x *VolumeTierMoveDatToRemoteRequest) Reset() {
 	*x = VolumeTierMoveDatToRemoteRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_volume_server_proto_msgTypes[72]
+		mi := &file_volume_server_proto_msgTypes[70]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -4102,7 +3929,7 @@ func (x *VolumeTierMoveDatToRemoteRequest) String() string {
 func (*VolumeTierMoveDatToRemoteRequest) ProtoMessage() {}
 
 func (x *VolumeTierMoveDatToRemoteRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_volume_server_proto_msgTypes[72]
+	mi := &file_volume_server_proto_msgTypes[70]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -4115,7 +3942,7 @@ func (x *VolumeTierMoveDatToRemoteRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use VolumeTierMoveDatToRemoteRequest.ProtoReflect.Descriptor instead.
 func (*VolumeTierMoveDatToRemoteRequest) Descriptor() ([]byte, []int) {
-	return file_volume_server_proto_rawDescGZIP(), []int{72}
+	return file_volume_server_proto_rawDescGZIP(), []int{70}
 }
 
 func (x *VolumeTierMoveDatToRemoteRequest) GetVolumeId() uint32 {
@@ -4158,7 +3985,7 @@ type VolumeTierMoveDatToRemoteResponse struct {
 func (x *VolumeTierMoveDatToRemoteResponse) Reset() {
 	*x = VolumeTierMoveDatToRemoteResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_volume_server_proto_msgTypes[73]
+		mi := &file_volume_server_proto_msgTypes[71]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -4171,7 +3998,7 @@ func (x *VolumeTierMoveDatToRemoteResponse) String() string {
 func (*VolumeTierMoveDatToRemoteResponse) ProtoMessage() {}
 
 func (x *VolumeTierMoveDatToRemoteResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_volume_server_proto_msgTypes[73]
+	mi := &file_volume_server_proto_msgTypes[71]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -4184,7 +4011,7 @@ func (x *VolumeTierMoveDatToRemoteResponse) ProtoReflect() protoreflect.Message
 
 // Deprecated: Use VolumeTierMoveDatToRemoteResponse.ProtoReflect.Descriptor instead.
 func (*VolumeTierMoveDatToRemoteResponse) Descriptor() ([]byte, []int) {
-	return file_volume_server_proto_rawDescGZIP(), []int{73}
+	return file_volume_server_proto_rawDescGZIP(), []int{71}
 }
 
 func (x *VolumeTierMoveDatToRemoteResponse) GetProcessed() int64 {
@@ -4214,7 +4041,7 @@ type VolumeTierMoveDatFromRemoteRequest struct {
 func (x *VolumeTierMoveDatFromRemoteRequest) Reset() {
 	*x = VolumeTierMoveDatFromRemoteRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_volume_server_proto_msgTypes[74]
+		mi := &file_volume_server_proto_msgTypes[72]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -4227,7 +4054,7 @@ func (x *VolumeTierMoveDatFromRemoteRequest) String() string {
 func (*VolumeTierMoveDatFromRemoteRequest) ProtoMessage() {}
 
 func (x *VolumeTierMoveDatFromRemoteRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_volume_server_proto_msgTypes[74]
+	mi := &file_volume_server_proto_msgTypes[72]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -4240,7 +4067,7 @@ func (x *VolumeTierMoveDatFromRemoteRequest) ProtoReflect() protoreflect.Message
 
 // Deprecated: Use VolumeTierMoveDatFromRemoteRequest.ProtoReflect.Descriptor instead.
 func (*VolumeTierMoveDatFromRemoteRequest) Descriptor() ([]byte, []int) {
-	return file_volume_server_proto_rawDescGZIP(), []int{74}
+	return file_volume_server_proto_rawDescGZIP(), []int{72}
 }
 
 func (x *VolumeTierMoveDatFromRemoteRequest) GetVolumeId() uint32 {
@@ -4276,7 +4103,7 @@ type VolumeTierMoveDatFromRemoteResponse struct {
 func (x *VolumeTierMoveDatFromRemoteResponse) Reset() {
 	*x = VolumeTierMoveDatFromRemoteResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_volume_server_proto_msgTypes[75]
+		mi := &file_volume_server_proto_msgTypes[73]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -4289,7 +4116,7 @@ func (x *VolumeTierMoveDatFromRemoteResponse) String() string {
 func (*VolumeTierMoveDatFromRemoteResponse) ProtoMessage() {}
 
 func (x *VolumeTierMoveDatFromRemoteResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_volume_server_proto_msgTypes[75]
+	mi := &file_volume_server_proto_msgTypes[73]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -4302,7 +4129,7 @@ func (x *VolumeTierMoveDatFromRemoteResponse) ProtoReflect() protoreflect.Messag
 
 // Deprecated: Use VolumeTierMoveDatFromRemoteResponse.ProtoReflect.Descriptor instead.
 func (*VolumeTierMoveDatFromRemoteResponse) Descriptor() ([]byte, []int) {
-	return file_volume_server_proto_rawDescGZIP(), []int{75}
+	return file_volume_server_proto_rawDescGZIP(), []int{73}
 }
 
 func (x *VolumeTierMoveDatFromRemoteResponse) GetProcessed() int64 {
@@ -4328,7 +4155,7 @@ type VolumeServerStatusRequest struct {
 func (x *VolumeServerStatusRequest) Reset() {
 	*x = VolumeServerStatusRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_volume_server_proto_msgTypes[76]
+		mi := &file_volume_server_proto_msgTypes[74]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -4341,7 +4168,7 @@ func (x *VolumeServerStatusRequest) String() string {
 func (*VolumeServerStatusRequest) ProtoMessage() {}
 
 func (x *VolumeServerStatusRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_volume_server_proto_msgTypes[76]
+	mi := &file_volume_server_proto_msgTypes[74]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -4354,7 +4181,7 @@ func (x *VolumeServerStatusRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use VolumeServerStatusRequest.ProtoReflect.Descriptor instead.
 func (*VolumeServerStatusRequest) Descriptor() ([]byte, []int) {
-	return file_volume_server_proto_rawDescGZIP(), []int{76}
+	return file_volume_server_proto_rawDescGZIP(), []int{74}
 }
 
 type VolumeServerStatusResponse struct {
@@ -4369,7 +4196,7 @@ type VolumeServerStatusResponse struct {
 func (x *VolumeServerStatusResponse) Reset() {
 	*x = VolumeServerStatusResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_volume_server_proto_msgTypes[77]
+		mi := &file_volume_server_proto_msgTypes[75]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -4382,7 +4209,7 @@ func (x *VolumeServerStatusResponse) String() string {
 func (*VolumeServerStatusResponse) ProtoMessage() {}
 
 func (x *VolumeServerStatusResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_volume_server_proto_msgTypes[77]
+	mi := &file_volume_server_proto_msgTypes[75]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -4395,7 +4222,7 @@ func (x *VolumeServerStatusResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use VolumeServerStatusResponse.ProtoReflect.Descriptor instead.
 func (*VolumeServerStatusResponse) Descriptor() ([]byte, []int) {
-	return file_volume_server_proto_rawDescGZIP(), []int{77}
+	return file_volume_server_proto_rawDescGZIP(), []int{75}
 }
 
 func (x *VolumeServerStatusResponse) GetDiskStatuses() []*DiskStatus {
@@ -4418,46 +4245,221 @@ type VolumeServerLeaveRequest struct {
 	unknownFields protoimpl.UnknownFields
 }
 
-func (x *VolumeServerLeaveRequest) Reset() {
-	*x = VolumeServerLeaveRequest{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_volume_server_proto_msgTypes[78]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
+func (x *VolumeServerLeaveRequest) Reset() {
+	*x = VolumeServerLeaveRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_volume_server_proto_msgTypes[76]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *VolumeServerLeaveRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*VolumeServerLeaveRequest) ProtoMessage() {}
+
+func (x *VolumeServerLeaveRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_volume_server_proto_msgTypes[76]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use VolumeServerLeaveRequest.ProtoReflect.Descriptor instead.
+func (*VolumeServerLeaveRequest) Descriptor() ([]byte, []int) {
+	return file_volume_server_proto_rawDescGZIP(), []int{76}
+}
+
+type VolumeServerLeaveResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+}
+
+func (x *VolumeServerLeaveResponse) Reset() {
+	*x = VolumeServerLeaveResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_volume_server_proto_msgTypes[77]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *VolumeServerLeaveResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*VolumeServerLeaveResponse) ProtoMessage() {}
+
+func (x *VolumeServerLeaveResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_volume_server_proto_msgTypes[77]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use VolumeServerLeaveResponse.ProtoReflect.Descriptor instead.
+func (*VolumeServerLeaveResponse) Descriptor() ([]byte, []int) {
+	return file_volume_server_proto_rawDescGZIP(), []int{77}
+}
+
+// remote storage
+type FetchAndWriteNeedleRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	VolumeId uint32 `protobuf:"varint,1,opt,name=volume_id,json=volumeId,proto3" json:"volume_id,omitempty"`
+	NeedleId uint64 `protobuf:"varint,2,opt,name=needle_id,json=needleId,proto3" json:"needle_id,omitempty"`
+	Offset   int64  `protobuf:"varint,3,opt,name=offset,proto3" json:"offset,omitempty"`
+	Size     int64  `protobuf:"varint,4,opt,name=size,proto3" json:"size,omitempty"`
+	// remote conf
+	RemoteType   string `protobuf:"bytes,5,opt,name=remote_type,json=remoteType,proto3" json:"remote_type,omitempty"`
+	RemoteName   string `protobuf:"bytes,6,opt,name=remote_name,json=remoteName,proto3" json:"remote_name,omitempty"`
+	S3AccessKey  string `protobuf:"bytes,8,opt,name=s3_access_key,json=s3AccessKey,proto3" json:"s3_access_key,omitempty"`
+	S3SecretKey  string `protobuf:"bytes,9,opt,name=s3_secret_key,json=s3SecretKey,proto3" json:"s3_secret_key,omitempty"`
+	S3Region     string `protobuf:"bytes,10,opt,name=s3_region,json=s3Region,proto3" json:"s3_region,omitempty"`
+	S3Endpoint   string `protobuf:"bytes,11,opt,name=s3_endpoint,json=s3Endpoint,proto3" json:"s3_endpoint,omitempty"`
+	RemoteBucket string `protobuf:"bytes,12,opt,name=remote_bucket,json=remoteBucket,proto3" json:"remote_bucket,omitempty"`
+	RemoteKey    string `protobuf:"bytes,13,opt,name=remote_key,json=remoteKey,proto3" json:"remote_key,omitempty"`
+}
+
+func (x *FetchAndWriteNeedleRequest) Reset() {
+	*x = FetchAndWriteNeedleRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_volume_server_proto_msgTypes[78]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *FetchAndWriteNeedleRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*FetchAndWriteNeedleRequest) ProtoMessage() {}
+
+func (x *FetchAndWriteNeedleRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_volume_server_proto_msgTypes[78]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use FetchAndWriteNeedleRequest.ProtoReflect.Descriptor instead.
+func (*FetchAndWriteNeedleRequest) Descriptor() ([]byte, []int) {
+	return file_volume_server_proto_rawDescGZIP(), []int{78}
+}
+
+func (x *FetchAndWriteNeedleRequest) GetVolumeId() uint32 {
+	if x != nil {
+		return x.VolumeId
+	}
+	return 0
+}
+
+func (x *FetchAndWriteNeedleRequest) GetNeedleId() uint64 {
+	if x != nil {
+		return x.NeedleId
+	}
+	return 0
+}
+
+func (x *FetchAndWriteNeedleRequest) GetOffset() int64 {
+	if x != nil {
+		return x.Offset
+	}
+	return 0
+}
+
+func (x *FetchAndWriteNeedleRequest) GetSize() int64 {
+	if x != nil {
+		return x.Size
+	}
+	return 0
+}
+
+func (x *FetchAndWriteNeedleRequest) GetRemoteType() string {
+	if x != nil {
+		return x.RemoteType
+	}
+	return ""
+}
+
+func (x *FetchAndWriteNeedleRequest) GetRemoteName() string {
+	if x != nil {
+		return x.RemoteName
+	}
+	return ""
+}
+
+func (x *FetchAndWriteNeedleRequest) GetS3AccessKey() string {
+	if x != nil {
+		return x.S3AccessKey
+	}
+	return ""
+}
+
+func (x *FetchAndWriteNeedleRequest) GetS3SecretKey() string {
+	if x != nil {
+		return x.S3SecretKey
 	}
+	return ""
 }
 
-func (x *VolumeServerLeaveRequest) String() string {
-	return protoimpl.X.MessageStringOf(x)
+func (x *FetchAndWriteNeedleRequest) GetS3Region() string {
+	if x != nil {
+		return x.S3Region
+	}
+	return ""
 }
 
-func (*VolumeServerLeaveRequest) ProtoMessage() {}
+func (x *FetchAndWriteNeedleRequest) GetS3Endpoint() string {
+	if x != nil {
+		return x.S3Endpoint
+	}
+	return ""
+}
 
-func (x *VolumeServerLeaveRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_volume_server_proto_msgTypes[78]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
+func (x *FetchAndWriteNeedleRequest) GetRemoteBucket() string {
+	if x != nil {
+		return x.RemoteBucket
 	}
-	return mi.MessageOf(x)
+	return ""
 }
 
-// Deprecated: Use VolumeServerLeaveRequest.ProtoReflect.Descriptor instead.
-func (*VolumeServerLeaveRequest) Descriptor() ([]byte, []int) {
-	return file_volume_server_proto_rawDescGZIP(), []int{78}
+func (x *FetchAndWriteNeedleRequest) GetRemoteKey() string {
+	if x != nil {
+		return x.RemoteKey
+	}
+	return ""
 }
 
-type VolumeServerLeaveResponse struct {
+type FetchAndWriteNeedleResponse struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 }
 
-func (x *VolumeServerLeaveResponse) Reset() {
-	*x = VolumeServerLeaveResponse{}
+func (x *FetchAndWriteNeedleResponse) Reset() {
+	*x = FetchAndWriteNeedleResponse{}
 	if protoimpl.UnsafeEnabled {
 		mi := &file_volume_server_proto_msgTypes[79]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
@@ -4465,13 +4467,13 @@ func (x *VolumeServerLeaveResponse) Reset() {
 	}
 }
 
-func (x *VolumeServerLeaveResponse) String() string {
+func (x *FetchAndWriteNeedleResponse) String() string {
 	return protoimpl.X.MessageStringOf(x)
 }
 
-func (*VolumeServerLeaveResponse) ProtoMessage() {}
+func (*FetchAndWriteNeedleResponse) ProtoMessage() {}
 
-func (x *VolumeServerLeaveResponse) ProtoReflect() protoreflect.Message {
+func (x *FetchAndWriteNeedleResponse) ProtoReflect() protoreflect.Message {
 	mi := &file_volume_server_proto_msgTypes[79]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
@@ -4483,8 +4485,8 @@ func (x *VolumeServerLeaveResponse) ProtoReflect() protoreflect.Message {
 	return mi.MessageOf(x)
 }
 
-// Deprecated: Use VolumeServerLeaveResponse.ProtoReflect.Descriptor instead.
-func (*VolumeServerLeaveResponse) Descriptor() ([]byte, []int) {
+// Deprecated: Use FetchAndWriteNeedleResponse.ProtoReflect.Descriptor instead.
+func (*FetchAndWriteNeedleResponse) Descriptor() ([]byte, []int) {
 	return file_volume_server_proto_rawDescGZIP(), []int{79}
 }
 
@@ -5460,33 +5462,6 @@ var file_volume_server_proto_rawDesc = []byte{
 	0x6e, 0x65, 0x65, 0x64, 0x6c, 0x65, 0x5f, 0x62, 0x6c, 0x6f, 0x62, 0x18, 0x04, 0x20, 0x01, 0x28,
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@@ -6200,44 +6202,44 @@ var file_volume_server_proto_goTypes = []interface{}{
 	(*ReadNeedleBlobResponse)(nil),                       // 39: volume_server_pb.ReadNeedleBlobResponse
 	(*WriteNeedleBlobRequest)(nil),                       // 40: volume_server_pb.WriteNeedleBlobRequest
 	(*WriteNeedleBlobResponse)(nil),                      // 41: volume_server_pb.WriteNeedleBlobResponse
-	(*FetchAndWriteNeedleRequest)(nil),                   // 42: volume_server_pb.FetchAndWriteNeedleRequest
-	(*FetchAndWriteNeedleResponse)(nil),                  // 43: volume_server_pb.FetchAndWriteNeedleResponse
-	(*VolumeTailSenderRequest)(nil),                      // 44: volume_server_pb.VolumeTailSenderRequest
-	(*VolumeTailSenderResponse)(nil),                     // 45: volume_server_pb.VolumeTailSenderResponse
-	(*VolumeTailReceiverRequest)(nil),                    // 46: volume_server_pb.VolumeTailReceiverRequest
-	(*VolumeTailReceiverResponse)(nil),                   // 47: volume_server_pb.VolumeTailReceiverResponse
-	(*VolumeEcShardsGenerateRequest)(nil),                // 48: volume_server_pb.VolumeEcShardsGenerateRequest
-	(*VolumeEcShardsGenerateResponse)(nil),               // 49: volume_server_pb.VolumeEcShardsGenerateResponse
-	(*VolumeEcShardsRebuildRequest)(nil),                 // 50: volume_server_pb.VolumeEcShardsRebuildRequest
-	(*VolumeEcShardsRebuildResponse)(nil),                // 51: volume_server_pb.VolumeEcShardsRebuildResponse
-	(*VolumeEcShardsCopyRequest)(nil),                    // 52: volume_server_pb.VolumeEcShardsCopyRequest
-	(*VolumeEcShardsCopyResponse)(nil),                   // 53: volume_server_pb.VolumeEcShardsCopyResponse
-	(*VolumeEcShardsDeleteRequest)(nil),                  // 54: volume_server_pb.VolumeEcShardsDeleteRequest
-	(*VolumeEcShardsDeleteResponse)(nil),                 // 55: volume_server_pb.VolumeEcShardsDeleteResponse
-	(*VolumeEcShardsMountRequest)(nil),                   // 56: volume_server_pb.VolumeEcShardsMountRequest
-	(*VolumeEcShardsMountResponse)(nil),                  // 57: volume_server_pb.VolumeEcShardsMountResponse
-	(*VolumeEcShardsUnmountRequest)(nil),                 // 58: volume_server_pb.VolumeEcShardsUnmountRequest
-	(*VolumeEcShardsUnmountResponse)(nil),                // 59: volume_server_pb.VolumeEcShardsUnmountResponse
-	(*VolumeEcShardReadRequest)(nil),                     // 60: volume_server_pb.VolumeEcShardReadRequest
-	(*VolumeEcShardReadResponse)(nil),                    // 61: volume_server_pb.VolumeEcShardReadResponse
-	(*VolumeEcBlobDeleteRequest)(nil),                    // 62: volume_server_pb.VolumeEcBlobDeleteRequest
-	(*VolumeEcBlobDeleteResponse)(nil),                   // 63: volume_server_pb.VolumeEcBlobDeleteResponse
-	(*VolumeEcShardsToVolumeRequest)(nil),                // 64: volume_server_pb.VolumeEcShardsToVolumeRequest
-	(*VolumeEcShardsToVolumeResponse)(nil),               // 65: volume_server_pb.VolumeEcShardsToVolumeResponse
-	(*ReadVolumeFileStatusRequest)(nil),                  // 66: volume_server_pb.ReadVolumeFileStatusRequest
-	(*ReadVolumeFileStatusResponse)(nil),                 // 67: volume_server_pb.ReadVolumeFileStatusResponse
-	(*DiskStatus)(nil),                                   // 68: volume_server_pb.DiskStatus
-	(*MemStatus)(nil),                                    // 69: volume_server_pb.MemStatus
-	(*RemoteFile)(nil),                                   // 70: volume_server_pb.RemoteFile
-	(*VolumeInfo)(nil),                                   // 71: volume_server_pb.VolumeInfo
-	(*VolumeTierMoveDatToRemoteRequest)(nil),             // 72: volume_server_pb.VolumeTierMoveDatToRemoteRequest
-	(*VolumeTierMoveDatToRemoteResponse)(nil),            // 73: volume_server_pb.VolumeTierMoveDatToRemoteResponse
-	(*VolumeTierMoveDatFromRemoteRequest)(nil),           // 74: volume_server_pb.VolumeTierMoveDatFromRemoteRequest
-	(*VolumeTierMoveDatFromRemoteResponse)(nil),          // 75: volume_server_pb.VolumeTierMoveDatFromRemoteResponse
-	(*VolumeServerStatusRequest)(nil),                    // 76: volume_server_pb.VolumeServerStatusRequest
-	(*VolumeServerStatusResponse)(nil),                   // 77: volume_server_pb.VolumeServerStatusResponse
-	(*VolumeServerLeaveRequest)(nil),                     // 78: volume_server_pb.VolumeServerLeaveRequest
-	(*VolumeServerLeaveResponse)(nil),                    // 79: volume_server_pb.VolumeServerLeaveResponse
+	(*VolumeTailSenderRequest)(nil),                      // 42: volume_server_pb.VolumeTailSenderRequest
+	(*VolumeTailSenderResponse)(nil),                     // 43: volume_server_pb.VolumeTailSenderResponse
+	(*VolumeTailReceiverRequest)(nil),                    // 44: volume_server_pb.VolumeTailReceiverRequest
+	(*VolumeTailReceiverResponse)(nil),                   // 45: volume_server_pb.VolumeTailReceiverResponse
+	(*VolumeEcShardsGenerateRequest)(nil),                // 46: volume_server_pb.VolumeEcShardsGenerateRequest
+	(*VolumeEcShardsGenerateResponse)(nil),               // 47: volume_server_pb.VolumeEcShardsGenerateResponse
+	(*VolumeEcShardsRebuildRequest)(nil),                 // 48: volume_server_pb.VolumeEcShardsRebuildRequest
+	(*VolumeEcShardsRebuildResponse)(nil),                // 49: volume_server_pb.VolumeEcShardsRebuildResponse
+	(*VolumeEcShardsCopyRequest)(nil),                    // 50: volume_server_pb.VolumeEcShardsCopyRequest
+	(*VolumeEcShardsCopyResponse)(nil),                   // 51: volume_server_pb.VolumeEcShardsCopyResponse
+	(*VolumeEcShardsDeleteRequest)(nil),                  // 52: volume_server_pb.VolumeEcShardsDeleteRequest
+	(*VolumeEcShardsDeleteResponse)(nil),                 // 53: volume_server_pb.VolumeEcShardsDeleteResponse
+	(*VolumeEcShardsMountRequest)(nil),                   // 54: volume_server_pb.VolumeEcShardsMountRequest
+	(*VolumeEcShardsMountResponse)(nil),                  // 55: volume_server_pb.VolumeEcShardsMountResponse
+	(*VolumeEcShardsUnmountRequest)(nil),                 // 56: volume_server_pb.VolumeEcShardsUnmountRequest
+	(*VolumeEcShardsUnmountResponse)(nil),                // 57: volume_server_pb.VolumeEcShardsUnmountResponse
+	(*VolumeEcShardReadRequest)(nil),                     // 58: volume_server_pb.VolumeEcShardReadRequest
+	(*VolumeEcShardReadResponse)(nil),                    // 59: volume_server_pb.VolumeEcShardReadResponse
+	(*VolumeEcBlobDeleteRequest)(nil),                    // 60: volume_server_pb.VolumeEcBlobDeleteRequest
+	(*VolumeEcBlobDeleteResponse)(nil),                   // 61: volume_server_pb.VolumeEcBlobDeleteResponse
+	(*VolumeEcShardsToVolumeRequest)(nil),                // 62: volume_server_pb.VolumeEcShardsToVolumeRequest
+	(*VolumeEcShardsToVolumeResponse)(nil),               // 63: volume_server_pb.VolumeEcShardsToVolumeResponse
+	(*ReadVolumeFileStatusRequest)(nil),                  // 64: volume_server_pb.ReadVolumeFileStatusRequest
+	(*ReadVolumeFileStatusResponse)(nil),                 // 65: volume_server_pb.ReadVolumeFileStatusResponse
+	(*DiskStatus)(nil),                                   // 66: volume_server_pb.DiskStatus
+	(*MemStatus)(nil),                                    // 67: volume_server_pb.MemStatus
+	(*RemoteFile)(nil),                                   // 68: volume_server_pb.RemoteFile
+	(*VolumeInfo)(nil),                                   // 69: volume_server_pb.VolumeInfo
+	(*VolumeTierMoveDatToRemoteRequest)(nil),             // 70: volume_server_pb.VolumeTierMoveDatToRemoteRequest
+	(*VolumeTierMoveDatToRemoteResponse)(nil),            // 71: volume_server_pb.VolumeTierMoveDatToRemoteResponse
+	(*VolumeTierMoveDatFromRemoteRequest)(nil),           // 72: volume_server_pb.VolumeTierMoveDatFromRemoteRequest
+	(*VolumeTierMoveDatFromRemoteResponse)(nil),          // 73: volume_server_pb.VolumeTierMoveDatFromRemoteResponse
+	(*VolumeServerStatusRequest)(nil),                    // 74: volume_server_pb.VolumeServerStatusRequest
+	(*VolumeServerStatusResponse)(nil),                   // 75: volume_server_pb.VolumeServerStatusResponse
+	(*VolumeServerLeaveRequest)(nil),                     // 76: volume_server_pb.VolumeServerLeaveRequest
+	(*VolumeServerLeaveResponse)(nil),                    // 77: volume_server_pb.VolumeServerLeaveResponse
+	(*FetchAndWriteNeedleRequest)(nil),                   // 78: volume_server_pb.FetchAndWriteNeedleRequest
+	(*FetchAndWriteNeedleResponse)(nil),                  // 79: volume_server_pb.FetchAndWriteNeedleResponse
 	(*QueryRequest)(nil),                                 // 80: volume_server_pb.QueryRequest
 	(*QueriedStripe)(nil),                                // 81: volume_server_pb.QueriedStripe
 	(*VolumeNeedleStatusRequest)(nil),                    // 82: volume_server_pb.VolumeNeedleStatusRequest
@@ -6253,9 +6255,9 @@ var file_volume_server_proto_goTypes = []interface{}{
 }
 var file_volume_server_proto_depIdxs = []int32{
 	2,  // 0: volume_server_pb.BatchDeleteResponse.results:type_name -> volume_server_pb.DeleteResult
-	70, // 1: volume_server_pb.VolumeInfo.files:type_name -> volume_server_pb.RemoteFile
-	68, // 2: volume_server_pb.VolumeServerStatusResponse.disk_statuses:type_name -> volume_server_pb.DiskStatus
-	69, // 3: volume_server_pb.VolumeServerStatusResponse.memory_status:type_name -> volume_server_pb.MemStatus
+	68, // 1: volume_server_pb.VolumeInfo.files:type_name -> volume_server_pb.RemoteFile
+	66, // 2: volume_server_pb.VolumeServerStatusResponse.disk_statuses:type_name -> volume_server_pb.DiskStatus
+	67, // 3: volume_server_pb.VolumeServerStatusResponse.memory_status:type_name -> volume_server_pb.MemStatus
 	84, // 4: volume_server_pb.QueryRequest.filter:type_name -> volume_server_pb.QueryRequest.Filter
 	85, // 5: volume_server_pb.QueryRequest.input_serialization:type_name -> volume_server_pb.QueryRequest.InputSerialization
 	86, // 6: volume_server_pb.QueryRequest.output_serialization:type_name -> volume_server_pb.QueryRequest.OutputSerialization
@@ -6281,26 +6283,26 @@ var file_volume_server_proto_depIdxs = []int32{
 	30, // 26: volume_server_pb.VolumeServer.VolumeConfigure:input_type -> volume_server_pb.VolumeConfigureRequest
 	32, // 27: volume_server_pb.VolumeServer.VolumeStatus:input_type -> volume_server_pb.VolumeStatusRequest
 	34, // 28: volume_server_pb.VolumeServer.VolumeCopy:input_type -> volume_server_pb.VolumeCopyRequest
-	66, // 29: volume_server_pb.VolumeServer.ReadVolumeFileStatus:input_type -> volume_server_pb.ReadVolumeFileStatusRequest
+	64, // 29: volume_server_pb.VolumeServer.ReadVolumeFileStatus:input_type -> volume_server_pb.ReadVolumeFileStatusRequest
 	36, // 30: volume_server_pb.VolumeServer.CopyFile:input_type -> volume_server_pb.CopyFileRequest
 	38, // 31: volume_server_pb.VolumeServer.ReadNeedleBlob:input_type -> volume_server_pb.ReadNeedleBlobRequest
 	40, // 32: volume_server_pb.VolumeServer.WriteNeedleBlob:input_type -> volume_server_pb.WriteNeedleBlobRequest
-	42, // 33: volume_server_pb.VolumeServer.FetchAndWriteNeedle:input_type -> volume_server_pb.FetchAndWriteNeedleRequest
-	44, // 34: volume_server_pb.VolumeServer.VolumeTailSender:input_type -> volume_server_pb.VolumeTailSenderRequest
-	46, // 35: volume_server_pb.VolumeServer.VolumeTailReceiver:input_type -> volume_server_pb.VolumeTailReceiverRequest
-	48, // 36: volume_server_pb.VolumeServer.VolumeEcShardsGenerate:input_type -> volume_server_pb.VolumeEcShardsGenerateRequest
-	50, // 37: volume_server_pb.VolumeServer.VolumeEcShardsRebuild:input_type -> volume_server_pb.VolumeEcShardsRebuildRequest
-	52, // 38: volume_server_pb.VolumeServer.VolumeEcShardsCopy:input_type -> volume_server_pb.VolumeEcShardsCopyRequest
-	54, // 39: volume_server_pb.VolumeServer.VolumeEcShardsDelete:input_type -> volume_server_pb.VolumeEcShardsDeleteRequest
-	56, // 40: volume_server_pb.VolumeServer.VolumeEcShardsMount:input_type -> volume_server_pb.VolumeEcShardsMountRequest
-	58, // 41: volume_server_pb.VolumeServer.VolumeEcShardsUnmount:input_type -> volume_server_pb.VolumeEcShardsUnmountRequest
-	60, // 42: volume_server_pb.VolumeServer.VolumeEcShardRead:input_type -> volume_server_pb.VolumeEcShardReadRequest
-	62, // 43: volume_server_pb.VolumeServer.VolumeEcBlobDelete:input_type -> volume_server_pb.VolumeEcBlobDeleteRequest
-	64, // 44: volume_server_pb.VolumeServer.VolumeEcShardsToVolume:input_type -> volume_server_pb.VolumeEcShardsToVolumeRequest
-	72, // 45: volume_server_pb.VolumeServer.VolumeTierMoveDatToRemote:input_type -> volume_server_pb.VolumeTierMoveDatToRemoteRequest
-	74, // 46: volume_server_pb.VolumeServer.VolumeTierMoveDatFromRemote:input_type -> volume_server_pb.VolumeTierMoveDatFromRemoteRequest
-	76, // 47: volume_server_pb.VolumeServer.VolumeServerStatus:input_type -> volume_server_pb.VolumeServerStatusRequest
-	78, // 48: volume_server_pb.VolumeServer.VolumeServerLeave:input_type -> volume_server_pb.VolumeServerLeaveRequest
+	42, // 33: volume_server_pb.VolumeServer.VolumeTailSender:input_type -> volume_server_pb.VolumeTailSenderRequest
+	44, // 34: volume_server_pb.VolumeServer.VolumeTailReceiver:input_type -> volume_server_pb.VolumeTailReceiverRequest
+	46, // 35: volume_server_pb.VolumeServer.VolumeEcShardsGenerate:input_type -> volume_server_pb.VolumeEcShardsGenerateRequest
+	48, // 36: volume_server_pb.VolumeServer.VolumeEcShardsRebuild:input_type -> volume_server_pb.VolumeEcShardsRebuildRequest
+	50, // 37: volume_server_pb.VolumeServer.VolumeEcShardsCopy:input_type -> volume_server_pb.VolumeEcShardsCopyRequest
+	52, // 38: volume_server_pb.VolumeServer.VolumeEcShardsDelete:input_type -> volume_server_pb.VolumeEcShardsDeleteRequest
+	54, // 39: volume_server_pb.VolumeServer.VolumeEcShardsMount:input_type -> volume_server_pb.VolumeEcShardsMountRequest
+	56, // 40: volume_server_pb.VolumeServer.VolumeEcShardsUnmount:input_type -> volume_server_pb.VolumeEcShardsUnmountRequest
+	58, // 41: volume_server_pb.VolumeServer.VolumeEcShardRead:input_type -> volume_server_pb.VolumeEcShardReadRequest
+	60, // 42: volume_server_pb.VolumeServer.VolumeEcBlobDelete:input_type -> volume_server_pb.VolumeEcBlobDeleteRequest
+	62, // 43: volume_server_pb.VolumeServer.VolumeEcShardsToVolume:input_type -> volume_server_pb.VolumeEcShardsToVolumeRequest
+	70, // 44: volume_server_pb.VolumeServer.VolumeTierMoveDatToRemote:input_type -> volume_server_pb.VolumeTierMoveDatToRemoteRequest
+	72, // 45: volume_server_pb.VolumeServer.VolumeTierMoveDatFromRemote:input_type -> volume_server_pb.VolumeTierMoveDatFromRemoteRequest
+	74, // 46: volume_server_pb.VolumeServer.VolumeServerStatus:input_type -> volume_server_pb.VolumeServerStatusRequest
+	76, // 47: volume_server_pb.VolumeServer.VolumeServerLeave:input_type -> volume_server_pb.VolumeServerLeaveRequest
+	78, // 48: volume_server_pb.VolumeServer.FetchAndWriteNeedle:input_type -> volume_server_pb.FetchAndWriteNeedleRequest
 	80, // 49: volume_server_pb.VolumeServer.Query:input_type -> volume_server_pb.QueryRequest
 	82, // 50: volume_server_pb.VolumeServer.VolumeNeedleStatus:input_type -> volume_server_pb.VolumeNeedleStatusRequest
 	1,  // 51: volume_server_pb.VolumeServer.BatchDelete:output_type -> volume_server_pb.BatchDeleteResponse
@@ -6320,26 +6322,26 @@ var file_volume_server_proto_depIdxs = []int32{
 	31, // 65: volume_server_pb.VolumeServer.VolumeConfigure:output_type -> volume_server_pb.VolumeConfigureResponse
 	33, // 66: volume_server_pb.VolumeServer.VolumeStatus:output_type -> volume_server_pb.VolumeStatusResponse
 	35, // 67: volume_server_pb.VolumeServer.VolumeCopy:output_type -> volume_server_pb.VolumeCopyResponse
-	67, // 68: volume_server_pb.VolumeServer.ReadVolumeFileStatus:output_type -> volume_server_pb.ReadVolumeFileStatusResponse
+	65, // 68: volume_server_pb.VolumeServer.ReadVolumeFileStatus:output_type -> volume_server_pb.ReadVolumeFileStatusResponse
 	37, // 69: volume_server_pb.VolumeServer.CopyFile:output_type -> volume_server_pb.CopyFileResponse
 	39, // 70: volume_server_pb.VolumeServer.ReadNeedleBlob:output_type -> volume_server_pb.ReadNeedleBlobResponse
 	41, // 71: volume_server_pb.VolumeServer.WriteNeedleBlob:output_type -> volume_server_pb.WriteNeedleBlobResponse
-	43, // 72: volume_server_pb.VolumeServer.FetchAndWriteNeedle:output_type -> volume_server_pb.FetchAndWriteNeedleResponse
-	45, // 73: volume_server_pb.VolumeServer.VolumeTailSender:output_type -> volume_server_pb.VolumeTailSenderResponse
-	47, // 74: volume_server_pb.VolumeServer.VolumeTailReceiver:output_type -> volume_server_pb.VolumeTailReceiverResponse
-	49, // 75: volume_server_pb.VolumeServer.VolumeEcShardsGenerate:output_type -> volume_server_pb.VolumeEcShardsGenerateResponse
-	51, // 76: volume_server_pb.VolumeServer.VolumeEcShardsRebuild:output_type -> volume_server_pb.VolumeEcShardsRebuildResponse
-	53, // 77: volume_server_pb.VolumeServer.VolumeEcShardsCopy:output_type -> volume_server_pb.VolumeEcShardsCopyResponse
-	55, // 78: volume_server_pb.VolumeServer.VolumeEcShardsDelete:output_type -> volume_server_pb.VolumeEcShardsDeleteResponse
-	57, // 79: volume_server_pb.VolumeServer.VolumeEcShardsMount:output_type -> volume_server_pb.VolumeEcShardsMountResponse
-	59, // 80: volume_server_pb.VolumeServer.VolumeEcShardsUnmount:output_type -> volume_server_pb.VolumeEcShardsUnmountResponse
-	61, // 81: volume_server_pb.VolumeServer.VolumeEcShardRead:output_type -> volume_server_pb.VolumeEcShardReadResponse
-	63, // 82: volume_server_pb.VolumeServer.VolumeEcBlobDelete:output_type -> volume_server_pb.VolumeEcBlobDeleteResponse
-	65, // 83: volume_server_pb.VolumeServer.VolumeEcShardsToVolume:output_type -> volume_server_pb.VolumeEcShardsToVolumeResponse
-	73, // 84: volume_server_pb.VolumeServer.VolumeTierMoveDatToRemote:output_type -> volume_server_pb.VolumeTierMoveDatToRemoteResponse
-	75, // 85: volume_server_pb.VolumeServer.VolumeTierMoveDatFromRemote:output_type -> volume_server_pb.VolumeTierMoveDatFromRemoteResponse
-	77, // 86: volume_server_pb.VolumeServer.VolumeServerStatus:output_type -> volume_server_pb.VolumeServerStatusResponse
-	79, // 87: volume_server_pb.VolumeServer.VolumeServerLeave:output_type -> volume_server_pb.VolumeServerLeaveResponse
+	43, // 72: volume_server_pb.VolumeServer.VolumeTailSender:output_type -> volume_server_pb.VolumeTailSenderResponse
+	45, // 73: volume_server_pb.VolumeServer.VolumeTailReceiver:output_type -> volume_server_pb.VolumeTailReceiverResponse
+	47, // 74: volume_server_pb.VolumeServer.VolumeEcShardsGenerate:output_type -> volume_server_pb.VolumeEcShardsGenerateResponse
+	49, // 75: volume_server_pb.VolumeServer.VolumeEcShardsRebuild:output_type -> volume_server_pb.VolumeEcShardsRebuildResponse
+	51, // 76: volume_server_pb.VolumeServer.VolumeEcShardsCopy:output_type -> volume_server_pb.VolumeEcShardsCopyResponse
+	53, // 77: volume_server_pb.VolumeServer.VolumeEcShardsDelete:output_type -> volume_server_pb.VolumeEcShardsDeleteResponse
+	55, // 78: volume_server_pb.VolumeServer.VolumeEcShardsMount:output_type -> volume_server_pb.VolumeEcShardsMountResponse
+	57, // 79: volume_server_pb.VolumeServer.VolumeEcShardsUnmount:output_type -> volume_server_pb.VolumeEcShardsUnmountResponse
+	59, // 80: volume_server_pb.VolumeServer.VolumeEcShardRead:output_type -> volume_server_pb.VolumeEcShardReadResponse
+	61, // 81: volume_server_pb.VolumeServer.VolumeEcBlobDelete:output_type -> volume_server_pb.VolumeEcBlobDeleteResponse
+	63, // 82: volume_server_pb.VolumeServer.VolumeEcShardsToVolume:output_type -> volume_server_pb.VolumeEcShardsToVolumeResponse
+	71, // 83: volume_server_pb.VolumeServer.VolumeTierMoveDatToRemote:output_type -> volume_server_pb.VolumeTierMoveDatToRemoteResponse
+	73, // 84: volume_server_pb.VolumeServer.VolumeTierMoveDatFromRemote:output_type -> volume_server_pb.VolumeTierMoveDatFromRemoteResponse
+	75, // 85: volume_server_pb.VolumeServer.VolumeServerStatus:output_type -> volume_server_pb.VolumeServerStatusResponse
+	77, // 86: volume_server_pb.VolumeServer.VolumeServerLeave:output_type -> volume_server_pb.VolumeServerLeaveResponse
+	79, // 87: volume_server_pb.VolumeServer.FetchAndWriteNeedle:output_type -> volume_server_pb.FetchAndWriteNeedleResponse
 	81, // 88: volume_server_pb.VolumeServer.Query:output_type -> volume_server_pb.QueriedStripe
 	83, // 89: volume_server_pb.VolumeServer.VolumeNeedleStatus:output_type -> volume_server_pb.VolumeNeedleStatusResponse
 	51, // [51:90] is the sub-list for method output_type
@@ -6860,7 +6862,7 @@ func file_volume_server_proto_init() {
 			}
 		}
 		file_volume_server_proto_msgTypes[42].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*FetchAndWriteNeedleRequest); i {
+			switch v := v.(*VolumeTailSenderRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -6872,7 +6874,7 @@ func file_volume_server_proto_init() {
 			}
 		}
 		file_volume_server_proto_msgTypes[43].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*FetchAndWriteNeedleResponse); i {
+			switch v := v.(*VolumeTailSenderResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -6884,7 +6886,7 @@ func file_volume_server_proto_init() {
 			}
 		}
 		file_volume_server_proto_msgTypes[44].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*VolumeTailSenderRequest); i {
+			switch v := v.(*VolumeTailReceiverRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -6896,7 +6898,7 @@ func file_volume_server_proto_init() {
 			}
 		}
 		file_volume_server_proto_msgTypes[45].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*VolumeTailSenderResponse); i {
+			switch v := v.(*VolumeTailReceiverResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -6908,7 +6910,7 @@ func file_volume_server_proto_init() {
 			}
 		}
 		file_volume_server_proto_msgTypes[46].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*VolumeTailReceiverRequest); i {
+			switch v := v.(*VolumeEcShardsGenerateRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -6920,7 +6922,7 @@ func file_volume_server_proto_init() {
 			}
 		}
 		file_volume_server_proto_msgTypes[47].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*VolumeTailReceiverResponse); i {
+			switch v := v.(*VolumeEcShardsGenerateResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -6932,7 +6934,7 @@ func file_volume_server_proto_init() {
 			}
 		}
 		file_volume_server_proto_msgTypes[48].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*VolumeEcShardsGenerateRequest); i {
+			switch v := v.(*VolumeEcShardsRebuildRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -6944,7 +6946,7 @@ func file_volume_server_proto_init() {
 			}
 		}
 		file_volume_server_proto_msgTypes[49].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*VolumeEcShardsGenerateResponse); i {
+			switch v := v.(*VolumeEcShardsRebuildResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -6956,7 +6958,7 @@ func file_volume_server_proto_init() {
 			}
 		}
 		file_volume_server_proto_msgTypes[50].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*VolumeEcShardsRebuildRequest); i {
+			switch v := v.(*VolumeEcShardsCopyRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -6968,7 +6970,7 @@ func file_volume_server_proto_init() {
 			}
 		}
 		file_volume_server_proto_msgTypes[51].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*VolumeEcShardsRebuildResponse); i {
+			switch v := v.(*VolumeEcShardsCopyResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -6980,7 +6982,7 @@ func file_volume_server_proto_init() {
 			}
 		}
 		file_volume_server_proto_msgTypes[52].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*VolumeEcShardsCopyRequest); i {
+			switch v := v.(*VolumeEcShardsDeleteRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -6992,7 +6994,7 @@ func file_volume_server_proto_init() {
 			}
 		}
 		file_volume_server_proto_msgTypes[53].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*VolumeEcShardsCopyResponse); i {
+			switch v := v.(*VolumeEcShardsDeleteResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -7004,7 +7006,7 @@ func file_volume_server_proto_init() {
 			}
 		}
 		file_volume_server_proto_msgTypes[54].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*VolumeEcShardsDeleteRequest); i {
+			switch v := v.(*VolumeEcShardsMountRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -7016,7 +7018,7 @@ func file_volume_server_proto_init() {
 			}
 		}
 		file_volume_server_proto_msgTypes[55].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*VolumeEcShardsDeleteResponse); i {
+			switch v := v.(*VolumeEcShardsMountResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -7028,7 +7030,7 @@ func file_volume_server_proto_init() {
 			}
 		}
 		file_volume_server_proto_msgTypes[56].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*VolumeEcShardsMountRequest); i {
+			switch v := v.(*VolumeEcShardsUnmountRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -7040,7 +7042,7 @@ func file_volume_server_proto_init() {
 			}
 		}
 		file_volume_server_proto_msgTypes[57].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*VolumeEcShardsMountResponse); i {
+			switch v := v.(*VolumeEcShardsUnmountResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -7052,7 +7054,7 @@ func file_volume_server_proto_init() {
 			}
 		}
 		file_volume_server_proto_msgTypes[58].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*VolumeEcShardsUnmountRequest); i {
+			switch v := v.(*VolumeEcShardReadRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -7064,7 +7066,7 @@ func file_volume_server_proto_init() {
 			}
 		}
 		file_volume_server_proto_msgTypes[59].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*VolumeEcShardsUnmountResponse); i {
+			switch v := v.(*VolumeEcShardReadResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -7076,7 +7078,7 @@ func file_volume_server_proto_init() {
 			}
 		}
 		file_volume_server_proto_msgTypes[60].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*VolumeEcShardReadRequest); i {
+			switch v := v.(*VolumeEcBlobDeleteRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -7088,7 +7090,7 @@ func file_volume_server_proto_init() {
 			}
 		}
 		file_volume_server_proto_msgTypes[61].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*VolumeEcShardReadResponse); i {
+			switch v := v.(*VolumeEcBlobDeleteResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -7100,7 +7102,7 @@ func file_volume_server_proto_init() {
 			}
 		}
 		file_volume_server_proto_msgTypes[62].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*VolumeEcBlobDeleteRequest); i {
+			switch v := v.(*VolumeEcShardsToVolumeRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -7112,7 +7114,7 @@ func file_volume_server_proto_init() {
 			}
 		}
 		file_volume_server_proto_msgTypes[63].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*VolumeEcBlobDeleteResponse); i {
+			switch v := v.(*VolumeEcShardsToVolumeResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -7124,7 +7126,7 @@ func file_volume_server_proto_init() {
 			}
 		}
 		file_volume_server_proto_msgTypes[64].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*VolumeEcShardsToVolumeRequest); i {
+			switch v := v.(*ReadVolumeFileStatusRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -7136,7 +7138,7 @@ func file_volume_server_proto_init() {
 			}
 		}
 		file_volume_server_proto_msgTypes[65].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*VolumeEcShardsToVolumeResponse); i {
+			switch v := v.(*ReadVolumeFileStatusResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -7148,7 +7150,7 @@ func file_volume_server_proto_init() {
 			}
 		}
 		file_volume_server_proto_msgTypes[66].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*ReadVolumeFileStatusRequest); i {
+			switch v := v.(*DiskStatus); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -7160,7 +7162,7 @@ func file_volume_server_proto_init() {
 			}
 		}
 		file_volume_server_proto_msgTypes[67].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*ReadVolumeFileStatusResponse); i {
+			switch v := v.(*MemStatus); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -7172,7 +7174,7 @@ func file_volume_server_proto_init() {
 			}
 		}
 		file_volume_server_proto_msgTypes[68].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*DiskStatus); i {
+			switch v := v.(*RemoteFile); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -7184,7 +7186,7 @@ func file_volume_server_proto_init() {
 			}
 		}
 		file_volume_server_proto_msgTypes[69].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*MemStatus); i {
+			switch v := v.(*VolumeInfo); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -7196,7 +7198,7 @@ func file_volume_server_proto_init() {
 			}
 		}
 		file_volume_server_proto_msgTypes[70].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*RemoteFile); i {
+			switch v := v.(*VolumeTierMoveDatToRemoteRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -7208,7 +7210,7 @@ func file_volume_server_proto_init() {
 			}
 		}
 		file_volume_server_proto_msgTypes[71].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*VolumeInfo); i {
+			switch v := v.(*VolumeTierMoveDatToRemoteResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -7220,7 +7222,7 @@ func file_volume_server_proto_init() {
 			}
 		}
 		file_volume_server_proto_msgTypes[72].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*VolumeTierMoveDatToRemoteRequest); i {
+			switch v := v.(*VolumeTierMoveDatFromRemoteRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -7232,7 +7234,7 @@ func file_volume_server_proto_init() {
 			}
 		}
 		file_volume_server_proto_msgTypes[73].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*VolumeTierMoveDatToRemoteResponse); i {
+			switch v := v.(*VolumeTierMoveDatFromRemoteResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -7244,7 +7246,7 @@ func file_volume_server_proto_init() {
 			}
 		}
 		file_volume_server_proto_msgTypes[74].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*VolumeTierMoveDatFromRemoteRequest); i {
+			switch v := v.(*VolumeServerStatusRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -7256,7 +7258,7 @@ func file_volume_server_proto_init() {
 			}
 		}
 		file_volume_server_proto_msgTypes[75].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*VolumeTierMoveDatFromRemoteResponse); i {
+			switch v := v.(*VolumeServerStatusResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -7268,7 +7270,7 @@ func file_volume_server_proto_init() {
 			}
 		}
 		file_volume_server_proto_msgTypes[76].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*VolumeServerStatusRequest); i {
+			switch v := v.(*VolumeServerLeaveRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -7280,7 +7282,7 @@ func file_volume_server_proto_init() {
 			}
 		}
 		file_volume_server_proto_msgTypes[77].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*VolumeServerStatusResponse); i {
+			switch v := v.(*VolumeServerLeaveResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -7292,7 +7294,7 @@ func file_volume_server_proto_init() {
 			}
 		}
 		file_volume_server_proto_msgTypes[78].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*VolumeServerLeaveRequest); i {
+			switch v := v.(*FetchAndWriteNeedleRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -7304,7 +7306,7 @@ func file_volume_server_proto_init() {
 			}
 		}
 		file_volume_server_proto_msgTypes[79].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*VolumeServerLeaveResponse); i {
+			switch v := v.(*FetchAndWriteNeedleResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -7515,7 +7517,6 @@ type VolumeServerClient interface {
 	CopyFile(ctx context.Context, in *CopyFileRequest, opts ...grpc.CallOption) (VolumeServer_CopyFileClient, error)
 	ReadNeedleBlob(ctx context.Context, in *ReadNeedleBlobRequest, opts ...grpc.CallOption) (*ReadNeedleBlobResponse, error)
 	WriteNeedleBlob(ctx context.Context, in *WriteNeedleBlobRequest, opts ...grpc.CallOption) (*WriteNeedleBlobResponse, error)
-	FetchAndWriteNeedle(ctx context.Context, in *FetchAndWriteNeedleRequest, opts ...grpc.CallOption) (*FetchAndWriteNeedleResponse, error)
 	VolumeTailSender(ctx context.Context, in *VolumeTailSenderRequest, opts ...grpc.CallOption) (VolumeServer_VolumeTailSenderClient, error)
 	VolumeTailReceiver(ctx context.Context, in *VolumeTailReceiverRequest, opts ...grpc.CallOption) (*VolumeTailReceiverResponse, error)
 	// erasure coding
@@ -7533,6 +7534,8 @@ type VolumeServerClient interface {
 	VolumeTierMoveDatFromRemote(ctx context.Context, in *VolumeTierMoveDatFromRemoteRequest, opts ...grpc.CallOption) (VolumeServer_VolumeTierMoveDatFromRemoteClient, error)
 	VolumeServerStatus(ctx context.Context, in *VolumeServerStatusRequest, opts ...grpc.CallOption) (*VolumeServerStatusResponse, error)
 	VolumeServerLeave(ctx context.Context, in *VolumeServerLeaveRequest, opts ...grpc.CallOption) (*VolumeServerLeaveResponse, error)
+	// remote storage
+	FetchAndWriteNeedle(ctx context.Context, in *FetchAndWriteNeedleRequest, opts ...grpc.CallOption) (*FetchAndWriteNeedleResponse, error)
 	// <experimental> query
 	Query(ctx context.Context, in *QueryRequest, opts ...grpc.CallOption) (VolumeServer_QueryClient, error)
 	VolumeNeedleStatus(ctx context.Context, in *VolumeNeedleStatusRequest, opts ...grpc.CallOption) (*VolumeNeedleStatusResponse, error)
@@ -7781,15 +7784,6 @@ func (c *volumeServerClient) WriteNeedleBlob(ctx context.Context, in *WriteNeedl
 	return out, nil
 }
 
-func (c *volumeServerClient) FetchAndWriteNeedle(ctx context.Context, in *FetchAndWriteNeedleRequest, opts ...grpc.CallOption) (*FetchAndWriteNeedleResponse, error) {
-	out := new(FetchAndWriteNeedleResponse)
-	err := c.cc.Invoke(ctx, "/volume_server_pb.VolumeServer/FetchAndWriteNeedle", in, out, opts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
 func (c *volumeServerClient) VolumeTailSender(ctx context.Context, in *VolumeTailSenderRequest, opts ...grpc.CallOption) (VolumeServer_VolumeTailSenderClient, error) {
 	stream, err := c.cc.NewStream(ctx, &_VolumeServer_serviceDesc.Streams[2], "/volume_server_pb.VolumeServer/VolumeTailSender", opts...)
 	if err != nil {
@@ -8017,6 +8011,15 @@ func (c *volumeServerClient) VolumeServerLeave(ctx context.Context, in *VolumeSe
 	return out, nil
 }
 
+func (c *volumeServerClient) FetchAndWriteNeedle(ctx context.Context, in *FetchAndWriteNeedleRequest, opts ...grpc.CallOption) (*FetchAndWriteNeedleResponse, error) {
+	out := new(FetchAndWriteNeedleResponse)
+	err := c.cc.Invoke(ctx, "/volume_server_pb.VolumeServer/FetchAndWriteNeedle", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 func (c *volumeServerClient) Query(ctx context.Context, in *QueryRequest, opts ...grpc.CallOption) (VolumeServer_QueryClient, error) {
 	stream, err := c.cc.NewStream(ctx, &_VolumeServer_serviceDesc.Streams[6], "/volume_server_pb.VolumeServer/Query", opts...)
 	if err != nil {
@@ -8083,7 +8086,6 @@ type VolumeServerServer interface {
 	CopyFile(*CopyFileRequest, VolumeServer_CopyFileServer) error
 	ReadNeedleBlob(context.Context, *ReadNeedleBlobRequest) (*ReadNeedleBlobResponse, error)
 	WriteNeedleBlob(context.Context, *WriteNeedleBlobRequest) (*WriteNeedleBlobResponse, error)
-	FetchAndWriteNeedle(context.Context, *FetchAndWriteNeedleRequest) (*FetchAndWriteNeedleResponse, error)
 	VolumeTailSender(*VolumeTailSenderRequest, VolumeServer_VolumeTailSenderServer) error
 	VolumeTailReceiver(context.Context, *VolumeTailReceiverRequest) (*VolumeTailReceiverResponse, error)
 	// erasure coding
@@ -8101,6 +8103,8 @@ type VolumeServerServer interface {
 	VolumeTierMoveDatFromRemote(*VolumeTierMoveDatFromRemoteRequest, VolumeServer_VolumeTierMoveDatFromRemoteServer) error
 	VolumeServerStatus(context.Context, *VolumeServerStatusRequest) (*VolumeServerStatusResponse, error)
 	VolumeServerLeave(context.Context, *VolumeServerLeaveRequest) (*VolumeServerLeaveResponse, error)
+	// remote storage
+	FetchAndWriteNeedle(context.Context, *FetchAndWriteNeedleRequest) (*FetchAndWriteNeedleResponse, error)
 	// <experimental> query
 	Query(*QueryRequest, VolumeServer_QueryServer) error
 	VolumeNeedleStatus(context.Context, *VolumeNeedleStatusRequest) (*VolumeNeedleStatusResponse, error)
@@ -8173,9 +8177,6 @@ func (*UnimplementedVolumeServerServer) ReadNeedleBlob(context.Context, *ReadNee
 func (*UnimplementedVolumeServerServer) WriteNeedleBlob(context.Context, *WriteNeedleBlobRequest) (*WriteNeedleBlobResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method WriteNeedleBlob not implemented")
 }
-func (*UnimplementedVolumeServerServer) FetchAndWriteNeedle(context.Context, *FetchAndWriteNeedleRequest) (*FetchAndWriteNeedleResponse, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method FetchAndWriteNeedle not implemented")
-}
 func (*UnimplementedVolumeServerServer) VolumeTailSender(*VolumeTailSenderRequest, VolumeServer_VolumeTailSenderServer) error {
 	return status.Errorf(codes.Unimplemented, "method VolumeTailSender not implemented")
 }
@@ -8221,6 +8222,9 @@ func (*UnimplementedVolumeServerServer) VolumeServerStatus(context.Context, *Vol
 func (*UnimplementedVolumeServerServer) VolumeServerLeave(context.Context, *VolumeServerLeaveRequest) (*VolumeServerLeaveResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method VolumeServerLeave not implemented")
 }
+func (*UnimplementedVolumeServerServer) FetchAndWriteNeedle(context.Context, *FetchAndWriteNeedleRequest) (*FetchAndWriteNeedleResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method FetchAndWriteNeedle not implemented")
+}
 func (*UnimplementedVolumeServerServer) Query(*QueryRequest, VolumeServer_QueryServer) error {
 	return status.Errorf(codes.Unimplemented, "method Query not implemented")
 }
@@ -8616,24 +8620,6 @@ func _VolumeServer_WriteNeedleBlob_Handler(srv interface{}, ctx context.Context,
 	return interceptor(ctx, in, info, handler)
 }
 
-func _VolumeServer_FetchAndWriteNeedle_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(FetchAndWriteNeedleRequest)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(VolumeServerServer).FetchAndWriteNeedle(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: "/volume_server_pb.VolumeServer/FetchAndWriteNeedle",
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(VolumeServerServer).FetchAndWriteNeedle(ctx, req.(*FetchAndWriteNeedleRequest))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
 func _VolumeServer_VolumeTailSender_Handler(srv interface{}, stream grpc.ServerStream) error {
 	m := new(VolumeTailSenderRequest)
 	if err := stream.RecvMsg(m); err != nil {
@@ -8916,6 +8902,24 @@ func _VolumeServer_VolumeServerLeave_Handler(srv interface{}, ctx context.Contex
 	return interceptor(ctx, in, info, handler)
 }
 
+func _VolumeServer_FetchAndWriteNeedle_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(FetchAndWriteNeedleRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(VolumeServerServer).FetchAndWriteNeedle(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/volume_server_pb.VolumeServer/FetchAndWriteNeedle",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(VolumeServerServer).FetchAndWriteNeedle(ctx, req.(*FetchAndWriteNeedleRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
 func _VolumeServer_Query_Handler(srv interface{}, stream grpc.ServerStream) error {
 	m := new(QueryRequest)
 	if err := stream.RecvMsg(m); err != nil {
@@ -9035,10 +9039,6 @@ var _VolumeServer_serviceDesc = grpc.ServiceDesc{
 			MethodName: "WriteNeedleBlob",
 			Handler:    _VolumeServer_WriteNeedleBlob_Handler,
 		},
-		{
-			MethodName: "FetchAndWriteNeedle",
-			Handler:    _VolumeServer_FetchAndWriteNeedle_Handler,
-		},
 		{
 			MethodName: "VolumeTailReceiver",
 			Handler:    _VolumeServer_VolumeTailReceiver_Handler,
@@ -9083,6 +9083,10 @@ var _VolumeServer_serviceDesc = grpc.ServiceDesc{
 			MethodName: "VolumeServerLeave",
 			Handler:    _VolumeServer_VolumeServerLeave_Handler,
 		},
+		{
+			MethodName: "FetchAndWriteNeedle",
+			Handler:    _VolumeServer_FetchAndWriteNeedle_Handler,
+		},
 		{
 			MethodName: "VolumeNeedleStatus",
 			Handler:    _VolumeServer_VolumeNeedleStatus_Handler,
diff --git a/weed/server/volume_grpc_read_write.go b/weed/server/volume_grpc_read_write.go
index 42941250d..607fd3926 100644
--- a/weed/server/volume_grpc_read_write.go
+++ b/weed/server/volume_grpc_read_write.go
@@ -38,41 +38,3 @@ func (vs *VolumeServer) WriteNeedleBlob(ctx context.Context, req *volume_server_
 
 	return resp, nil
 }
-
-func (vs *VolumeServer) FetchAndWriteNeedle(ctx context.Context, req *volume_server_pb.FetchAndWriteNeedleRequest) (resp *volume_server_pb.FetchAndWriteNeedleResponse, err error) {
-	resp = &volume_server_pb.FetchAndWriteNeedleResponse{}
-	v := vs.store.GetVolume(needle.VolumeId(req.VolumeId))
-	if v == nil {
-		return nil, fmt.Errorf("not found volume id %d", req.VolumeId)
-	}
-
-	remoteConf := &filer_pb.RemoteConf{
-		Type: req.RemoteType,
-		Name: req.RemoteName,
-		S3AccessKey: req.S3AccessKey,
-		S3SecretKey: req.S3SecretKey,
-		S3Region: req.S3Region,
-		S3Endpoint: req.S3Endpoint,
-	}
-
-	client, getClientErr := remote_storage.GetRemoteStorage(remoteConf)
-	if getClientErr != nil  {
-		return nil, fmt.Errorf("get remote client: %v", getClientErr)
-	}
-
-	remoteStorageLocation := &filer_pb.RemoteStorageLocation{
-		Name:   req.RemoteName,
-		Bucket: req.RemoteBucket,
-		Path:   req.RemoteKey,
-	}
-	data, ReadRemoteErr := client.ReadFile(remoteStorageLocation, req.Offset, req.Size)
-	if ReadRemoteErr != nil {
-		return nil, fmt.Errorf("read from remote %+v: %v", remoteStorageLocation, ReadRemoteErr)
-	}
-
-	if err = v.WriteNeedleBlob(types.NeedleId(req.NeedleId), data, types.Size(req.Size)); err != nil {
-		return nil, fmt.Errorf("write blob needle %d size %d: %v", req.NeedleId, req.Size, err)
-	}
-
-	return resp, nil
-}
diff --git a/weed/server/volume_grpc_remote.go b/weed/server/volume_grpc_remote.go
new file mode 100644
index 000000000..0b6cd465b
--- /dev/null
+++ b/weed/server/volume_grpc_remote.go
@@ -0,0 +1,49 @@
+package weed_server
+
+import (
+	"context"
+	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
+	"github.com/chrislusf/seaweedfs/weed/pb/volume_server_pb"
+	"github.com/chrislusf/seaweedfs/weed/remote_storage"
+	"github.com/chrislusf/seaweedfs/weed/storage/needle"
+	"github.com/chrislusf/seaweedfs/weed/storage/types"
+)
+
+func (vs *VolumeServer) FetchAndWriteNeedle(ctx context.Context, req *volume_server_pb.FetchAndWriteNeedleRequest) (resp *volume_server_pb.FetchAndWriteNeedleResponse, err error) {
+	resp = &volume_server_pb.FetchAndWriteNeedleResponse{}
+	v := vs.store.GetVolume(needle.VolumeId(req.VolumeId))
+	if v == nil {
+		return nil, fmt.Errorf("not found volume id %d", req.VolumeId)
+	}
+
+	remoteConf := &filer_pb.RemoteConf{
+		Type: req.RemoteType,
+		Name: req.RemoteName,
+		S3AccessKey: req.S3AccessKey,
+		S3SecretKey: req.S3SecretKey,
+		S3Region: req.S3Region,
+		S3Endpoint: req.S3Endpoint,
+	}
+
+	client, getClientErr := remote_storage.GetRemoteStorage(remoteConf)
+	if getClientErr != nil  {
+		return nil, fmt.Errorf("get remote client: %v", getClientErr)
+	}
+
+	remoteStorageLocation := &filer_pb.RemoteStorageLocation{
+		Name:   req.RemoteName,
+		Bucket: req.RemoteBucket,
+		Path:   req.RemoteKey,
+	}
+	data, ReadRemoteErr := client.ReadFile(remoteStorageLocation, req.Offset, req.Size)
+	if ReadRemoteErr != nil {
+		return nil, fmt.Errorf("read from remote %+v: %v", remoteStorageLocation, ReadRemoteErr)
+	}
+
+	if err = v.WriteNeedleBlob(types.NeedleId(req.NeedleId), data, types.Size(req.Size)); err != nil {
+		return nil, fmt.Errorf("write blob needle %d size %d: %v", req.NeedleId, req.Size, err)
+	}
+
+	return resp, nil
+}