diff --git a/weed/command/volume.go b/weed/command/volume.go
index 02d8eb50c..b90dc5967 100644
--- a/weed/command/volume.go
+++ b/weed/command/volume.go
@@ -169,6 +169,25 @@ func (v VolumeServerOptions) startVolumeServer(volumeFolders, maxVolumeCounts, v
 		glog.Fatalf("%d directories by -dir, but only %d minFreeSpacePercent is set by -minFreeSpacePercent", len(v.folders), len(v.minFreeSpacePercents))
 	}
 
+	// set disk types
+	var diskTypes []storage.DiskType
+	diskTypeStrings := strings.Split(*v.diskType, ",")
+	for _, diskTypeString := range diskTypeStrings {
+		if diskType, err := storage.ToDiskType(diskTypeString); err == nil {
+			diskTypes = append(diskTypes, diskType)
+		} else {
+			glog.Fatalf("failed to parse volume type: %v", err)
+		}
+	}
+	if len(diskTypes) == 1 && len(v.folders) > 1 {
+		for i := 0; i < len(v.folders)-1; i++ {
+			diskTypes = append(diskTypes, diskTypes[0])
+		}
+	}
+	if len(v.folders) != len(diskTypes) {
+		glog.Fatalf("%d directories by -dir, but only %d disk types is set by -disk", len(v.folders), len(diskTypes))
+	}
+
 	// security related white list configuration
 	if volumeWhiteListOption != "" {
 		v.whiteList = strings.Split(volumeWhiteListOption, ",")
@@ -212,14 +231,9 @@ func (v VolumeServerOptions) startVolumeServer(volumeFolders, maxVolumeCounts, v
 
 	masters := *v.masters
 
-	diskType, err := storage.ToDiskType(*v.diskType)
-	if err != nil {
-		glog.Fatalf("failed to parse volume type: %v", err)
-	}
-
 	volumeServer := weed_server.NewVolumeServer(volumeMux, publicVolumeMux,
 		*v.ip, *v.port, *v.publicUrl,
-		v.folders, v.folderMaxLimits, v.minFreeSpacePercents, diskType,
+		v.folders, v.folderMaxLimits, v.minFreeSpacePercents, diskTypes,
 		*v.idxFolder,
 		volumeNeedleMapKind,
 		strings.Split(masters, ","), 5, *v.dataCenter, *v.rack,
diff --git a/weed/server/volume_server.go b/weed/server/volume_server.go
index f88c84184..7c731763b 100644
--- a/weed/server/volume_server.go
+++ b/weed/server/volume_server.go
@@ -20,7 +20,6 @@ type VolumeServer struct {
 	pulseSeconds    int
 	dataCenter      string
 	rack            string
-	DiskType      storage.DiskType
 	store           *storage.Store
 	guard           *security.Guard
 	grpcDialOption  grpc.DialOption
@@ -38,7 +37,7 @@ type VolumeServer struct {
 
 func NewVolumeServer(adminMux, publicMux *http.ServeMux, ip string,
 	port int, publicUrl string,
-	folders []string, maxCounts []int, minFreeSpacePercents []float32, diskType storage.DiskType,
+	folders []string, maxCounts []int, minFreeSpacePercents []float32, diskTypes []storage.DiskType,
 	idxFolder string,
 	needleMapKind storage.NeedleMapType,
 	masterNodes []string, pulseSeconds int,
@@ -64,7 +63,6 @@ func NewVolumeServer(adminMux, publicMux *http.ServeMux, ip string,
 		pulseSeconds:            pulseSeconds,
 		dataCenter:              dataCenter,
 		rack:                    rack,
-		DiskType:              diskType,
 		needleMapKind:           needleMapKind,
 		FixJpgOrientation:       fixJpgOrientation,
 		ReadRedirect:            readRedirect,
@@ -78,7 +76,7 @@ func NewVolumeServer(adminMux, publicMux *http.ServeMux, ip string,
 
 	vs.checkWithMaster()
 
-	vs.store = storage.NewStore(vs.grpcDialOption, port, ip, publicUrl, folders, maxCounts, minFreeSpacePercents, idxFolder, vs.needleMapKind, vs.DiskType)
+	vs.store = storage.NewStore(vs.grpcDialOption, port, ip, publicUrl, folders, maxCounts, minFreeSpacePercents, idxFolder, vs.needleMapKind, diskTypes)
 	vs.guard = security.NewGuard(whiteList, signingKey, expiresAfterSec, readSigningKey, readExpiresAfterSec)
 
 	handleStaticResources(adminMux)
diff --git a/weed/storage/store.go b/weed/storage/store.go
index 1b1c771df..fc524876d 100644
--- a/weed/storage/store.go
+++ b/weed/storage/store.go
@@ -52,11 +52,11 @@ func (s *Store) String() (str string) {
 	return
 }
 
-func NewStore(grpcDialOption grpc.DialOption, port int, ip, publicUrl string, dirnames []string, maxVolumeCounts []int, minFreeSpacePercents []float32, idxFolder string, needleMapKind NeedleMapType, diskType DiskType) (s *Store) {
+func NewStore(grpcDialOption grpc.DialOption, port int, ip, publicUrl string, dirnames []string, maxVolumeCounts []int, minFreeSpacePercents []float32, idxFolder string, needleMapKind NeedleMapType, diskTypes []DiskType) (s *Store) {
 	s = &Store{grpcDialOption: grpcDialOption, Port: port, Ip: ip, PublicUrl: publicUrl, NeedleMapType: needleMapKind}
 	s.Locations = make([]*DiskLocation, 0)
 	for i := 0; i < len(dirnames); i++ {
-		location := NewDiskLocation(dirnames[i], maxVolumeCounts[i], minFreeSpacePercents[i], idxFolder, diskType)
+		location := NewDiskLocation(dirnames[i], maxVolumeCounts[i], minFreeSpacePercents[i], idxFolder, diskTypes[i])
 		location.loadExistingVolumes(needleMapKind)
 		s.Locations = append(s.Locations, location)
 		stats.VolumeServerMaxVolumeCounter.Add(float64(maxVolumeCounts[i]))