saving .vif files correctly

weed/storage/volume_loading.go

@@ -26,9 +26,7 @@ func (v *Volume) load(alsoLoadIndex bool, createDatIfMissing bool, needleMapKind
 	fileName := v.FileName()
 	alreadyHasSuperBlock := false
 
-	if !v.maybeLoadVolumeInfo() {
-		v.SaveVolumeInfo()
-	}
+	hasVolumeInfoFile := v.maybeLoadVolumeInfo() && v.volumeInfo.Version != 0
 
 	if v.HasRemoteFile() {
 		v.noWriteCanDelete = true
@@ -141,6 +139,11 @@ func (v *Volume) load(alsoLoadIndex bool, createDatIfMissing bool, needleMapKind
 		}
 	}
 
+	if !hasVolumeInfoFile {
+		v.volumeInfo.Version = uint32(v.SuperBlock.Version)
+		v.SaveVolumeInfo()
+	}
+
 	stats.VolumeServerVolumeCounter.WithLabelValues(v.Collection, "volume").Inc()
 
 	return err

weed/storage/volume_tier.go

@@ -14,12 +14,11 @@ func (v *Volume) GetVolumeInfo() *volume_server_pb.VolumeInfo {
 
 func (v *Volume) maybeLoadVolumeInfo() (found bool) {
 
-	v.volumeInfo, found = pb.MaybeLoadVolumeInfo(v.FileName() + ".vif")
+	v.volumeInfo, v.hasRemoteFile = pb.MaybeLoadVolumeInfo(v.FileName() + ".vif")
 
-	if found {
+	if v.hasRemoteFile {
 		glog.V(0).Infof("volume %d is tiered to %s as %s and read only", v.Id,
 			v.volumeInfo.Files[0].BackendName(), v.volumeInfo.Files[0].Key)
-		v.hasRemoteFile = true
 	}
 
 	return