diff --git a/weed/pb/master.proto b/weed/pb/master.proto
index 7fdd45469..9b1e884c7 100644
--- a/weed/pb/master.proto
+++ b/weed/pb/master.proto
@@ -210,6 +210,7 @@ message DataNodeInfo {
     uint64 active_volume_count = 5;
     repeated VolumeInformationMessage volume_infos = 6;
     repeated VolumeEcShardInformationMessage ec_shard_infos = 7;
+    uint64 remote_volume_count = 8;
 }
 message RackInfo {
     string id = 1;
@@ -218,6 +219,7 @@ message RackInfo {
     uint64 free_volume_count = 4;
     uint64 active_volume_count = 5;
     repeated DataNodeInfo data_node_infos = 6;
+    uint64 remote_volume_count = 7;
 }
 message DataCenterInfo {
     string id = 1;
@@ -226,6 +228,7 @@ message DataCenterInfo {
     uint64 free_volume_count = 4;
     uint64 active_volume_count = 5;
     repeated RackInfo rack_infos = 6;
+    uint64 remote_volume_count = 7;
 }
 message TopologyInfo {
     string id = 1;
@@ -234,6 +237,7 @@ message TopologyInfo {
     uint64 free_volume_count = 4;
     uint64 active_volume_count = 5;
     repeated DataCenterInfo data_center_infos = 6;
+    uint64 remote_volume_count = 7;
 }
 message VolumeListRequest {
 }
diff --git a/weed/pb/master_pb/master.pb.go b/weed/pb/master_pb/master.pb.go
index a01fb0a1f..ea4362c92 100644
--- a/weed/pb/master_pb/master.pb.go
+++ b/weed/pb/master_pb/master.pb.go
@@ -1043,6 +1043,7 @@ type DataNodeInfo struct {
 	ActiveVolumeCount uint64                             `protobuf:"varint,5,opt,name=active_volume_count,json=activeVolumeCount" json:"active_volume_count,omitempty"`
 	VolumeInfos       []*VolumeInformationMessage        `protobuf:"bytes,6,rep,name=volume_infos,json=volumeInfos" json:"volume_infos,omitempty"`
 	EcShardInfos      []*VolumeEcShardInformationMessage `protobuf:"bytes,7,rep,name=ec_shard_infos,json=ecShardInfos" json:"ec_shard_infos,omitempty"`
+	RemoteVolumeCount uint64                             `protobuf:"varint,8,opt,name=remote_volume_count,json=remoteVolumeCount" json:"remote_volume_count,omitempty"`
 }
 
 func (m *DataNodeInfo) Reset()                    { *m = DataNodeInfo{} }
@@ -1099,6 +1100,13 @@ func (m *DataNodeInfo) GetEcShardInfos() []*VolumeEcShardInformationMessage {
 	return nil
 }
 
+func (m *DataNodeInfo) GetRemoteVolumeCount() uint64 {
+	if m != nil {
+		return m.RemoteVolumeCount
+	}
+	return 0
+}
+
 type RackInfo struct {
 	Id                string          `protobuf:"bytes,1,opt,name=id" json:"id,omitempty"`
 	VolumeCount       uint64          `protobuf:"varint,2,opt,name=volume_count,json=volumeCount" json:"volume_count,omitempty"`
@@ -1106,6 +1114,7 @@ type RackInfo struct {
 	FreeVolumeCount   uint64          `protobuf:"varint,4,opt,name=free_volume_count,json=freeVolumeCount" json:"free_volume_count,omitempty"`
 	ActiveVolumeCount uint64          `protobuf:"varint,5,opt,name=active_volume_count,json=activeVolumeCount" json:"active_volume_count,omitempty"`
 	DataNodeInfos     []*DataNodeInfo `protobuf:"bytes,6,rep,name=data_node_infos,json=dataNodeInfos" json:"data_node_infos,omitempty"`
+	RemoteVolumeCount uint64          `protobuf:"varint,7,opt,name=remote_volume_count,json=remoteVolumeCount" json:"remote_volume_count,omitempty"`
 }
 
 func (m *RackInfo) Reset()                    { *m = RackInfo{} }
@@ -1155,6 +1164,13 @@ func (m *RackInfo) GetDataNodeInfos() []*DataNodeInfo {
 	return nil
 }
 
+func (m *RackInfo) GetRemoteVolumeCount() uint64 {
+	if m != nil {
+		return m.RemoteVolumeCount
+	}
+	return 0
+}
+
 type DataCenterInfo struct {
 	Id                string      `protobuf:"bytes,1,opt,name=id" json:"id,omitempty"`
 	VolumeCount       uint64      `protobuf:"varint,2,opt,name=volume_count,json=volumeCount" json:"volume_count,omitempty"`
@@ -1162,6 +1178,7 @@ type DataCenterInfo struct {
 	FreeVolumeCount   uint64      `protobuf:"varint,4,opt,name=free_volume_count,json=freeVolumeCount" json:"free_volume_count,omitempty"`
 	ActiveVolumeCount uint64      `protobuf:"varint,5,opt,name=active_volume_count,json=activeVolumeCount" json:"active_volume_count,omitempty"`
 	RackInfos         []*RackInfo `protobuf:"bytes,6,rep,name=rack_infos,json=rackInfos" json:"rack_infos,omitempty"`
+	RemoteVolumeCount uint64      `protobuf:"varint,7,opt,name=remote_volume_count,json=remoteVolumeCount" json:"remote_volume_count,omitempty"`
 }
 
 func (m *DataCenterInfo) Reset()                    { *m = DataCenterInfo{} }
@@ -1211,6 +1228,13 @@ func (m *DataCenterInfo) GetRackInfos() []*RackInfo {
 	return nil
 }
 
+func (m *DataCenterInfo) GetRemoteVolumeCount() uint64 {
+	if m != nil {
+		return m.RemoteVolumeCount
+	}
+	return 0
+}
+
 type TopologyInfo struct {
 	Id                string            `protobuf:"bytes,1,opt,name=id" json:"id,omitempty"`
 	VolumeCount       uint64            `protobuf:"varint,2,opt,name=volume_count,json=volumeCount" json:"volume_count,omitempty"`
@@ -1218,6 +1242,7 @@ type TopologyInfo struct {
 	FreeVolumeCount   uint64            `protobuf:"varint,4,opt,name=free_volume_count,json=freeVolumeCount" json:"free_volume_count,omitempty"`
 	ActiveVolumeCount uint64            `protobuf:"varint,5,opt,name=active_volume_count,json=activeVolumeCount" json:"active_volume_count,omitempty"`
 	DataCenterInfos   []*DataCenterInfo `protobuf:"bytes,6,rep,name=data_center_infos,json=dataCenterInfos" json:"data_center_infos,omitempty"`
+	RemoteVolumeCount uint64            `protobuf:"varint,7,opt,name=remote_volume_count,json=remoteVolumeCount" json:"remote_volume_count,omitempty"`
 }
 
 func (m *TopologyInfo) Reset()                    { *m = TopologyInfo{} }
@@ -1267,6 +1292,13 @@ func (m *TopologyInfo) GetDataCenterInfos() []*DataCenterInfo {
 	return nil
 }
 
+func (m *TopologyInfo) GetRemoteVolumeCount() uint64 {
+	if m != nil {
+		return m.RemoteVolumeCount
+	}
+	return 0
+}
+
 type VolumeListRequest struct {
 }
 
@@ -1875,136 +1907,137 @@ var _Seaweed_serviceDesc = grpc.ServiceDesc{
 func init() { proto.RegisterFile("master.proto", fileDescriptor0) }
 
 var fileDescriptor0 = []byte{
-	// 2083 bytes of a gzipped FileDescriptorProto
+	// 2102 bytes of a gzipped FileDescriptorProto
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+	0xa3, 0x4b, 0xe8, 0xcf, 0x9b, 0xf1, 0x22, 0x9c, 0xaf, 0xaa, 0x10, 0x6f, 0xe8, 0x99, 0xe8, 0x67,
+	0xd0, 0x2c, 0x02, 0xa9, 0x88, 0x40, 0x36, 0x4a, 0x81, 0xa8, 0xb5, 0x0a, 0x2b, 0x7e, 0xbc, 0x49,
+	0x96, 0x25, 0x99, 0x2a, 0x38, 0x72, 0x60, 0xff, 0x12, 0x1a, 0xdf, 0x3b, 0xbb, 0xf6, 0xbf, 0x2a,
+	0xd0, 0x79, 0x44, 0x69, 0x70, 0x1a, 0xeb, 0x14, 0x6c, 0xc2, 0x9a, 0x6c, 0x2d, 0xb2, 0xd7, 0xcb,
+	0x01, 0x1a, 0x43, 0x4b, 0xd5, 0x2d, 0x03, 0x7a, 0x53, 0x74, 0x6d, 0x49, 0x54, 0xb5, 0xac, 0x26,
+	0x43, 0xe3, 0xdd, 0x62, 0x8e, 0xe8, 0xae, 0xad, 0x24, 0xba, 0x75, 0x83, 0xe8, 0xbe, 0x0d, 0x4d,
+	0x31, 0x29, 0x4e, 0x7c, 0xa2, 0x18, 0x70, 0x83, 0x0b, 0x8e, 0x12, 0x9f, 0xa0, 0x5d, 0xd8, 0x8a,
+	0x48, 0x94, 0x64, 0x33, 0x37, 0xc2, 0xa9, 0xcb, 0x79, 0xb6, 0xe0, 0x2e, 0xd1, 0x44, 0xd5, 0x5e,
+	0x24, 0xb5, 0x87, 0x38, 0x3d, 0xc4, 0x97, 0x9c, 0xbe, 0x1c, 0x4e, 0xd0, 0x2e, 0xdc, 0xfe, 0x2a,
+	0x0b, 0x18, 0x9e, 0x84, 0xa4, 0xcc, 0xdf, 0x65, 0x2d, 0xde, 0xd0, 0x4a, 0x83, 0xc4, 0xdb, 0x7f,
+	0xb3, 0xa0, 0xab, 0x51, 0x53, 0x27, 0xac, 0x0f, 0xd5, 0x93, 0x3c, 0xcb, 0xfc, 0x53, 0xe7, 0xa2,
+	0xb2, 0x2a, 0x17, 0x0b, 0x8f, 0x88, 0x1c, 0xf9, 0x9a, 0x89, 0x7c, 0x9e, 0xf4, 0x35, 0x23, 0xe9,
+	0x1c, 0x1a, 0x3c, 0x65, 0x67, 0x1a, 0x1a, 0xfe, 0x6d, 0x9f, 0xc2, 0xe0, 0x98, 0x61, 0x16, 0x50,
+	0x16, 0x78, 0x54, 0xa7, 0x73, 0x2e, 0x71, 0xd6, 0x75, 0x89, 0xab, 0xac, 0x4a, 0x5c, 0x35, 0x4f,
+	0x9c, 0xfd, 0x1f, 0x0b, 0x90, 0xb9, 0x92, 0x82, 0xe0, 0x07, 0x58, 0x8a, 0x43, 0xc6, 0x12, 0xc6,
+	0xd9, 0x20, 0x67, 0x5c, 0x8a, 0x37, 0x09, 0x09, 0x4f, 0x1f, 0x3f, 0x0d, 0x53, 0x4a, 0x7c, 0xa9,
+	0x95, 0xa4, 0xa9, 0xc1, 0x05, 0x42, 0x59, 0xe6, 0x5c, 0xf5, 0x39, 0xce, 0x65, 0x3f, 0x82, 0x96,
+	0xea, 0x3f, 0x2f, 0x79, 0xef, 0xba, 0x3e, 0x7a, 0x15, 0x5d, 0xa5, 0x00, 0x62, 0x0c, 0xb0, 0x57,
+	0x44, 0xbf, 0xac, 0x02, 0xff, 0x11, 0x6e, 0x17, 0x16, 0xcf, 0x02, 0xca, 0x74, 0x5e, 0x3e, 0x86,
+	0xad, 0x20, 0xf6, 0xc2, 0xa9, 0x4f, 0xdc, 0x98, 0x77, 0xf0, 0x30, 0x7f, 0xbc, 0x58, 0x82, 0xad,
+	0x6d, 0x2a, 0xed, 0x91, 0x50, 0xea, 0x47, 0xcc, 0x07, 0x80, 0xf4, 0x2c, 0xe2, 0xe5, 0x33, 0x2a,
+	0x62, 0x46, 0x5f, 0x69, 0xf6, 0x3d, 0x65, 0x6d, 0xbf, 0x80, 0xad, 0xf9, 0xc5, 0x55, 0xaa, 0x7e,
+	0x0e, 0xad, 0x02, 0x76, 0x5d, 0x07, 0x6f, 0x1b, 0xe5, 0xa7, 0x98, 0xe7, 0x98, 0x96, 0xf6, 0x4f,
+	0xe0, 0xad, 0x42, 0xf5, 0x44, 0x14, 0xfa, 0xab, 0x1a, 0xd0, 0x08, 0x86, 0x8b, 0xe6, 0x32, 0x06,
+	0xfb, 0xaf, 0x55, 0x68, 0x3f, 0x51, 0x37, 0x97, 0xd3, 0x18, 0x83, 0xb8, 0x48, 0xf6, 0x70, 0x1f,
+	0xda, 0xa5, 0x0b, 0x29, 0xf9, 0x76, 0xeb, 0xc2, 0x78, 0x4d, 0x2f, 0x7b, 0x77, 0x57, 0x85, 0xd9,
+	0xfc, 0xbb, 0xfb, 0x21, 0x0c, 0x4e, 0x32, 0x42, 0x16, 0x9f, 0xe8, 0x35, 0xa7, 0xc7, 0x15, 0xa6,
+	0xed, 0x0e, 0x6c, 0x60, 0x8f, 0x05, 0x17, 0x73, 0xd6, 0xf2, 0x7c, 0x0d, 0xa4, 0xca, 0xb4, 0xff,
+	0x3c, 0x0f, 0x34, 0x88, 0x4f, 0x12, 0x3a, 0xac, 0x7f, 0xf7, 0x27, 0xb6, 0xda, 0x0d, 0xd7, 0x50,
+	0xf4, 0x1c, 0xba, 0xfa, 0xa9, 0xa6, 0x3c, 0xad, 0xdf, 0xf8, 0x19, 0xd8, 0x26, 0x85, 0x8a, 0x1a,
+	0xbc, 0xb9, 0xb4, 0x93, 0x86, 0xdc, 0x89, 0x54, 0x99, 0x85, 0xed, 0xdf, 0x15, 0x68, 0x38, 0xd8,
+	0x3b, 0x7f, 0xb3, 0xf3, 0xf1, 0x19, 0xf4, 0xf2, 0x1e, 0x51, 0x4a, 0xc9, 0x5b, 0x06, 0x90, 0xe6,
+	0xd1, 0x73, 0x3a, 0xbe, 0x31, 0x5a, 0x09, 0xdb, 0xfa, 0x2a, 0xd8, 0xfe, 0x59, 0x81, 0xee, 0x93,
+	0xbc, 0x6f, 0xbd, 0xd9, 0xe0, 0xed, 0x02, 0xf0, 0x46, 0x5b, 0xc2, 0xcd, 0x24, 0x26, 0xfa, 0x78,
+	0x38, 0xcd, 0x4c, 0x7d, 0xdd, 0x1c, 0xaf, 0x6f, 0x2a, 0xd0, 0x7e, 0x99, 0xa4, 0x49, 0x98, 0x9c,
+	0xce, 0xde, 0x6c, 0xb4, 0xf6, 0x61, 0x60, 0x70, 0x98, 0x12, 0x68, 0x77, 0xe6, 0x0e, 0x5b, 0x71,
+	0x38, 0x9c, 0x9e, 0x5f, 0x1a, 0xdf, 0x1c, 0xc0, 0x0d, 0x18, 0x28, 0x5e, 0x5f, 0xb4, 0x14, 0xfb,
+	0xcf, 0x16, 0x20, 0x53, 0xaa, 0x6a, 0xfd, 0xaf, 0xa0, 0xc3, 0x14, 0xd6, 0x22, 0x3e, 0xf5, 0xb8,
+	0x31, 0xef, 0x82, 0x99, 0x0b, 0xa7, 0xcd, 0xcc, 0xcc, 0xfc, 0x14, 0x36, 0x17, 0x7e, 0x06, 0xe2,
+	0x84, 0x4a, 0x66, 0x64, 0x30, 0xf7, 0x4b, 0xd0, 0xe1, 0xc4, 0xfe, 0x18, 0x6e, 0x4b, 0x12, 0xad,
+	0xfb, 0x90, 0xee, 0x0f, 0x0b, 0x6c, 0xb8, 0x53, 0xb0, 0x61, 0xfb, 0x5b, 0x0b, 0xb6, 0xe6, 0xa7,
+	0xa9, 0xf8, 0xaf, 0x9a, 0x87, 0x30, 0x20, 0x55, 0x2f, 0x4d, 0x5e, 0x2f, 0xe9, 0xf4, 0x47, 0x0b,
+	0xbc, 0x7e, 0xde, 0xf7, 0x8e, 0xae, 0xa3, 0x05, 0xb5, 0xef, 0xd3, 0xb2, 0x80, 0x8e, 0x30, 0x0c,
+	0x16, 0xcc, 0xf8, 0xab, 0x48, 0xaf, 0xab, 0x62, 0x5a, 0x57, 0x13, 0xbf, 0x07, 0xb1, 0xb7, 0xef,
+	0xc1, 0xdd, 0x2f, 0x08, 0x3b, 0x14, 0x36, 0x7b, 0x49, 0x7c, 0x12, 0x9c, 0x4e, 0x33, 0x69, 0x54,
+	0xa4, 0xf6, 0xdd, 0x55, 0x16, 0x0a, 0xa6, 0x25, 0xbf, 0xb5, 0x59, 0x37, 0xfe, 0xad, 0xad, 0x72,
+	0xd5, 0x6f, 0x6d, 0xbb, 0xff, 0xad, 0xc3, 0xfa, 0x31, 0xc1, 0xaf, 0x09, 0xe1, 0x4f, 0xfb, 0xce,
+	0x31, 0x89, 0xfd, 0xe2, 0x57, 0xf4, 0x4d, 0x63, 0x8f, 0xb9, 0x74, 0xf4, 0xce, 0x32, 0x69, 0x4e,
+	0x01, 0x6e, 0x6d, 0x5b, 0x1f, 0x5a, 0xe8, 0x05, 0x74, 0x4a, 0x2f, 0x5a, 0x74, 0xcf, 0x98, 0xb4,
+	0xec, 0xad, 0x3b, 0xba, 0xb3, 0xd0, 0x10, 0x35, 0xaa, 0xb9, 0xcb, 0xb6, 0xf9, 0x92, 0x43, 0xef,
+	0xae, 0x7c, 0xe2, 0x49, 0x87, 0xf7, 0xae, 0x79, 0x02, 0xda, 0xb7, 0xd0, 0x67, 0x50, 0x97, 0x94,
+	0x1f, 0x0d, 0x0d, 0xe3, 0xd2, 0xdb, 0xa9, 0x14, 0x57, 0xf9, 0x7d, 0x60, 0xdf, 0x42, 0x4f, 0x01,
+	0x0a, 0xd2, 0x8c, 0xde, 0x29, 0xfd, 0x0c, 0x32, 0xc7, 0xda, 0x47, 0x77, 0x57, 0x68, 0x73, 0x67,
+	0x5f, 0x41, 0xb7, 0x4c, 0xed, 0xd0, 0x78, 0x29, 0x7b, 0x33, 0xea, 0xc3, 0xe8, 0xfe, 0x15, 0x16,
+	0xb9, 0xe3, 0xdf, 0x41, 0x7f, 0x9e, 0xb1, 0x21, 0x7b, 0xe9, 0xc4, 0x12, 0xfb, 0x1b, 0xbd, 0x77,
+	0xa5, 0x8d, 0x09, 0x42, 0x51, 0xa2, 0x4a, 0x20, 0x2c, 0xd4, 0xb3, 0x12, 0x08, 0x8b, 0x75, 0x4d,
+	0x82, 0x50, 0xbe, 0xd7, 0x25, 0x10, 0x96, 0x56, 0xa1, 0x12, 0x08, 0xcb, 0x8b, 0x82, 0x7d, 0x0b,
+	0x25, 0xb0, 0xb5, 0xfc, 0xb6, 0x21, 0xf3, 0x27, 0xa1, 0x2b, 0xaf, 0xec, 0xe8, 0xc1, 0x77, 0xb0,
+	0xd4, 0x0b, 0x4e, 0xea, 0xe2, 0x2f, 0xaa, 0x8f, 0xfe, 0x1f, 0x00, 0x00, 0xff, 0xff, 0x6c, 0x64,
+	0x5c, 0xbc, 0xb2, 0x1a, 0x00, 0x00,
 }
diff --git a/weed/server/volume_server_handlers_ui.go b/weed/server/volume_server_handlers_ui.go
index 63a9fe230..8d35c9c8b 100644
--- a/weed/server/volume_server_handlers_ui.go
+++ b/weed/server/volume_server_handlers_ui.go
@@ -24,10 +24,10 @@ func (vs *VolumeServer) uiStatusHandler(w http.ResponseWriter, r *http.Request)
 	volumeInfos := vs.store.VolumeInfos()
 	var normalVolumeInfos, remoteVolumeInfos []*storage.VolumeInfo
 	for _, vinfo := range volumeInfos {
-		if vinfo.RemoteStorageName == "" {
-			normalVolumeInfos = append(normalVolumeInfos, vinfo)
-		} else {
+		if vinfo.IsRemote() {
 			remoteVolumeInfos = append(remoteVolumeInfos, vinfo)
+		} else {
+			normalVolumeInfos = append(normalVolumeInfos, vinfo)
 		}
 	}
 	args := struct {
diff --git a/weed/shell/command_volume_list.go b/weed/shell/command_volume_list.go
index 91b5a0d32..c6c79d150 100644
--- a/weed/shell/command_volume_list.go
+++ b/weed/shell/command_volume_list.go
@@ -46,7 +46,7 @@ func (c *commandVolumeList) Do(args []string, commandEnv *CommandEnv, writer io.
 }
 
 func writeTopologyInfo(writer io.Writer, t *master_pb.TopologyInfo, volumeSizeLimitMb uint64) statistics {
-	fmt.Fprintf(writer, "Topology volume:%d/%d active:%d free:%d volumeSizeLimit:%d MB\n", t.VolumeCount, t.MaxVolumeCount, t.ActiveVolumeCount, t.FreeVolumeCount, volumeSizeLimitMb)
+	fmt.Fprintf(writer, "Topology volume:%d/%d active:%d free:%d remote:%d volumeSizeLimit:%d MB\n", t.VolumeCount, t.MaxVolumeCount, t.ActiveVolumeCount, t.FreeVolumeCount, t.RemoteVolumeCount, volumeSizeLimitMb)
 	sort.Slice(t.DataCenterInfos, func(i, j int) bool {
 		return t.DataCenterInfos[i].Id < t.DataCenterInfos[j].Id
 	})
@@ -58,7 +58,7 @@ func writeTopologyInfo(writer io.Writer, t *master_pb.TopologyInfo, volumeSizeLi
 	return s
 }
 func writeDataCenterInfo(writer io.Writer, t *master_pb.DataCenterInfo) statistics {
-	fmt.Fprintf(writer, "  DataCenter %s volume:%d/%d active:%d free:%d\n", t.Id, t.VolumeCount, t.MaxVolumeCount, t.ActiveVolumeCount, t.FreeVolumeCount)
+	fmt.Fprintf(writer, "  DataCenter %s volume:%d/%d active:%d free:%d remote:%d\n", t.Id, t.VolumeCount, t.MaxVolumeCount, t.ActiveVolumeCount, t.FreeVolumeCount, t.RemoteVolumeCount)
 	var s statistics
 	sort.Slice(t.RackInfos, func(i, j int) bool {
 		return t.RackInfos[i].Id < t.RackInfos[j].Id
@@ -70,7 +70,7 @@ func writeDataCenterInfo(writer io.Writer, t *master_pb.DataCenterInfo) statisti
 	return s
 }
 func writeRackInfo(writer io.Writer, t *master_pb.RackInfo) statistics {
-	fmt.Fprintf(writer, "    Rack %s volume:%d/%d active:%d free:%d\n", t.Id, t.VolumeCount, t.MaxVolumeCount, t.ActiveVolumeCount, t.FreeVolumeCount)
+	fmt.Fprintf(writer, "    Rack %s volume:%d/%d active:%d free:%d remote:%d\n", t.Id, t.VolumeCount, t.MaxVolumeCount, t.ActiveVolumeCount, t.FreeVolumeCount, t.RemoteVolumeCount)
 	var s statistics
 	sort.Slice(t.DataNodeInfos, func(i, j int) bool {
 		return t.DataNodeInfos[i].Id < t.DataNodeInfos[j].Id
@@ -82,7 +82,7 @@ func writeRackInfo(writer io.Writer, t *master_pb.RackInfo) statistics {
 	return s
 }
 func writeDataNodeInfo(writer io.Writer, t *master_pb.DataNodeInfo) statistics {
-	fmt.Fprintf(writer, "      DataNode %s volume:%d/%d active:%d free:%d\n", t.Id, t.VolumeCount, t.MaxVolumeCount, t.ActiveVolumeCount, t.FreeVolumeCount)
+	fmt.Fprintf(writer, "      DataNode %s volume:%d/%d active:%d free:%d remote:%d\n", t.Id, t.VolumeCount, t.MaxVolumeCount, t.ActiveVolumeCount, t.FreeVolumeCount, t.RemoteVolumeCount)
 	var s statistics
 	sort.Slice(t.VolumeInfos, func(i, j int) bool {
 		return t.VolumeInfos[i].Id < t.VolumeInfos[j].Id
diff --git a/weed/storage/volume_info.go b/weed/storage/volume_info.go
index 6a33aa261..3b9b667eb 100644
--- a/weed/storage/volume_info.go
+++ b/weed/storage/volume_info.go
@@ -64,6 +64,10 @@ func NewVolumeInfoFromShort(m *master_pb.VolumeShortInformationMessage) (vi Volu
 	return vi, nil
 }
 
+func (vi VolumeInfo) IsRemote() bool {
+	return vi.RemoteStorageName != ""
+}
+
 func (vi VolumeInfo) String() string {
 	return fmt.Sprintf("Id:%d, Size:%d, ReplicaPlacement:%s, Collection:%s, Version:%v, FileCount:%d, DeleteCount:%d, DeletedByteCount:%d, ReadOnly:%v",
 		vi.Id, vi.Size, vi.ReplicaPlacement, vi.Collection, vi.Version, vi.FileCount, vi.DeleteCount, vi.DeletedByteCount, vi.ReadOnly)
diff --git a/weed/topology/data_center.go b/weed/topology/data_center.go
index 640cb1937..dc3accb71 100644
--- a/weed/topology/data_center.go
+++ b/weed/topology/data_center.go
@@ -48,6 +48,7 @@ func (dc *DataCenter) ToDataCenterInfo() *master_pb.DataCenterInfo {
 		MaxVolumeCount:    uint64(dc.GetMaxVolumeCount()),
 		FreeVolumeCount:   uint64(dc.FreeSpace()),
 		ActiveVolumeCount: uint64(dc.GetActiveVolumeCount()),
+		RemoteVolumeCount: uint64(dc.GetRemoteVolumeCount()),
 	}
 	for _, c := range dc.Children() {
 		rack := c.(*Rack)
diff --git a/weed/topology/data_node.go b/weed/topology/data_node.go
index 3e72ccdbf..617341e54 100644
--- a/weed/topology/data_node.go
+++ b/weed/topology/data_node.go
@@ -2,14 +2,13 @@ package topology
 
 import (
 	"fmt"
+	"strconv"
 	"sync"
 
 	"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
 	"github.com/chrislusf/seaweedfs/weed/storage/erasure_coding"
 	"github.com/chrislusf/seaweedfs/weed/storage/needle"
 
-	"strconv"
-
 	"github.com/chrislusf/seaweedfs/weed/glog"
 	"github.com/chrislusf/seaweedfs/weed/storage"
 )
@@ -44,15 +43,26 @@ func (dn *DataNode) String() string {
 func (dn *DataNode) AddOrUpdateVolume(v storage.VolumeInfo) (isNew bool) {
 	dn.Lock()
 	defer dn.Unlock()
-	if _, ok := dn.volumes[v.Id]; !ok {
+	if oldV, ok := dn.volumes[v.Id]; !ok {
 		dn.volumes[v.Id] = v
 		dn.UpAdjustVolumeCountDelta(1)
+		if v.IsRemote() {
+			dn.UpAdjustRemoteVolumeCountDelta(1)
+		}
 		if !v.ReadOnly {
 			dn.UpAdjustActiveVolumeCountDelta(1)
 		}
 		dn.UpAdjustMaxVolumeId(v.Id)
 		isNew = true
 	} else {
+		if oldV.IsRemote() != v.IsRemote() {
+			if v.IsRemote() {
+				dn.UpAdjustRemoteVolumeCountDelta(1)
+			}
+			if oldV.IsRemote() {
+				dn.UpAdjustRemoteVolumeCountDelta(-1)
+			}
+		}
 		dn.volumes[v.Id] = v
 	}
 	return
@@ -70,7 +80,12 @@ func (dn *DataNode) UpdateVolumes(actualVolumes []storage.VolumeInfo) (newVolume
 			delete(dn.volumes, vid)
 			deletedVolumes = append(deletedVolumes, v)
 			dn.UpAdjustVolumeCountDelta(-1)
-			dn.UpAdjustActiveVolumeCountDelta(-1)
+			if v.IsRemote() {
+				dn.UpAdjustRemoteVolumeCountDelta(-1)
+			}
+			if !v.ReadOnly {
+				dn.UpAdjustActiveVolumeCountDelta(-1)
+			}
 		}
 	}
 	dn.Unlock()
@@ -88,7 +103,12 @@ func (dn *DataNode) DeltaUpdateVolumes(newlVolumes, deletedVolumes []storage.Vol
 	for _, v := range deletedVolumes {
 		delete(dn.volumes, v.Id)
 		dn.UpAdjustVolumeCountDelta(-1)
-		dn.UpAdjustActiveVolumeCountDelta(-1)
+		if v.IsRemote() {
+			dn.UpAdjustRemoteVolumeCountDelta(-1)
+		}
+		if !v.ReadOnly {
+			dn.UpAdjustActiveVolumeCountDelta(-1)
+		}
 	}
 	dn.Unlock()
 	for _, v := range newlVolumes {
@@ -160,6 +180,7 @@ func (dn *DataNode) ToDataNodeInfo() *master_pb.DataNodeInfo {
 		MaxVolumeCount:    uint64(dn.GetMaxVolumeCount()),
 		FreeVolumeCount:   uint64(dn.FreeSpace()),
 		ActiveVolumeCount: uint64(dn.GetActiveVolumeCount()),
+		RemoteVolumeCount: uint64(dn.GetRemoteVolumeCount()),
 	}
 	for _, v := range dn.GetVolumes() {
 		m.VolumeInfos = append(m.VolumeInfos, v.ToVolumeInformationMessage())
diff --git a/weed/topology/node.go b/weed/topology/node.go
index b2808f589..572a89d4d 100644
--- a/weed/topology/node.go
+++ b/weed/topology/node.go
@@ -20,6 +20,7 @@ type Node interface {
 	ReserveOneVolume(r int64) (*DataNode, error)
 	UpAdjustMaxVolumeCountDelta(maxVolumeCountDelta int64)
 	UpAdjustVolumeCountDelta(volumeCountDelta int64)
+	UpAdjustRemoteVolumeCountDelta(remoteVolumeCountDelta int64)
 	UpAdjustEcShardCountDelta(ecShardCountDelta int64)
 	UpAdjustActiveVolumeCountDelta(activeVolumeCountDelta int64)
 	UpAdjustMaxVolumeId(vid needle.VolumeId)
@@ -27,6 +28,7 @@ type Node interface {
 	GetVolumeCount() int64
 	GetEcShardCount() int64
 	GetActiveVolumeCount() int64
+	GetRemoteVolumeCount() int64
 	GetMaxVolumeCount() int64
 	GetMaxVolumeId() needle.VolumeId
 	SetParent(Node)
@@ -44,6 +46,7 @@ type Node interface {
 }
 type NodeImpl struct {
 	volumeCount       int64
+	remoteVolumeCount int64
 	activeVolumeCount int64
 	ecShardCount      int64
 	maxVolumeCount    int64
@@ -132,10 +135,11 @@ func (n *NodeImpl) Id() NodeId {
 	return n.id
 }
 func (n *NodeImpl) FreeSpace() int64 {
+	freeVolumeSlotCount := n.maxVolumeCount + n.remoteVolumeCount - n.volumeCount
 	if n.ecShardCount > 0 {
-		return n.maxVolumeCount - n.volumeCount - n.ecShardCount/erasure_coding.DataShardsCount - 1
+		freeVolumeSlotCount = freeVolumeSlotCount - n.ecShardCount/erasure_coding.DataShardsCount - 1
 	}
-	return n.maxVolumeCount - n.volumeCount
+	return freeVolumeSlotCount
 }
 func (n *NodeImpl) SetParent(node Node) {
 	n.parent = node
@@ -191,6 +195,12 @@ func (n *NodeImpl) UpAdjustVolumeCountDelta(volumeCountDelta int64) { //can be n
 		n.parent.UpAdjustVolumeCountDelta(volumeCountDelta)
 	}
 }
+func (n *NodeImpl) UpAdjustRemoteVolumeCountDelta(remoteVolumeCountDelta int64) { //can be negative
+	atomic.AddInt64(&n.remoteVolumeCount, remoteVolumeCountDelta)
+	if n.parent != nil {
+		n.parent.UpAdjustRemoteVolumeCountDelta(remoteVolumeCountDelta)
+	}
+}
 func (n *NodeImpl) UpAdjustEcShardCountDelta(ecShardCountDelta int64) { //can be negative
 	atomic.AddInt64(&n.ecShardCount, ecShardCountDelta)
 	if n.parent != nil {
@@ -220,6 +230,9 @@ func (n *NodeImpl) GetVolumeCount() int64 {
 func (n *NodeImpl) GetEcShardCount() int64 {
 	return n.ecShardCount
 }
+func (n *NodeImpl) GetRemoteVolumeCount() int64 {
+	return n.remoteVolumeCount
+}
 func (n *NodeImpl) GetActiveVolumeCount() int64 {
 	return n.activeVolumeCount
 }
@@ -235,6 +248,7 @@ func (n *NodeImpl) LinkChildNode(node Node) {
 		n.UpAdjustMaxVolumeCountDelta(node.GetMaxVolumeCount())
 		n.UpAdjustMaxVolumeId(node.GetMaxVolumeId())
 		n.UpAdjustVolumeCountDelta(node.GetVolumeCount())
+		n.UpAdjustRemoteVolumeCountDelta(node.GetRemoteVolumeCount())
 		n.UpAdjustEcShardCountDelta(node.GetEcShardCount())
 		n.UpAdjustActiveVolumeCountDelta(node.GetActiveVolumeCount())
 		node.SetParent(n)
@@ -250,6 +264,7 @@ func (n *NodeImpl) UnlinkChildNode(nodeId NodeId) {
 		node.SetParent(nil)
 		delete(n.children, node.Id())
 		n.UpAdjustVolumeCountDelta(-node.GetVolumeCount())
+		n.UpAdjustRemoteVolumeCountDelta(-node.GetRemoteVolumeCount())
 		n.UpAdjustEcShardCountDelta(-node.GetEcShardCount())
 		n.UpAdjustActiveVolumeCountDelta(-node.GetActiveVolumeCount())
 		n.UpAdjustMaxVolumeCountDelta(-node.GetMaxVolumeCount())
diff --git a/weed/topology/rack.go b/weed/topology/rack.go
index 932c1a804..1921c0c05 100644
--- a/weed/topology/rack.go
+++ b/weed/topology/rack.go
@@ -67,6 +67,7 @@ func (r *Rack) ToRackInfo() *master_pb.RackInfo {
 		MaxVolumeCount:    uint64(r.GetMaxVolumeCount()),
 		FreeVolumeCount:   uint64(r.FreeSpace()),
 		ActiveVolumeCount: uint64(r.GetActiveVolumeCount()),
+		RemoteVolumeCount: uint64(r.GetRemoteVolumeCount()),
 	}
 	for _, c := range r.Children() {
 		dn := c.(*DataNode)
diff --git a/weed/topology/topology_event_handling.go b/weed/topology/topology_event_handling.go
index 041351492..068bd401e 100644
--- a/weed/topology/topology_event_handling.go
+++ b/weed/topology/topology_event_handling.go
@@ -59,6 +59,7 @@ func (t *Topology) UnRegisterDataNode(dn *DataNode) {
 		vl.SetVolumeUnavailable(dn, v.Id)
 	}
 	dn.UpAdjustVolumeCountDelta(-dn.GetVolumeCount())
+	dn.UpAdjustRemoteVolumeCountDelta(-dn.GetRemoteVolumeCount())
 	dn.UpAdjustActiveVolumeCountDelta(-dn.GetActiveVolumeCount())
 	dn.UpAdjustMaxVolumeCountDelta(-dn.GetMaxVolumeCount())
 	if dn.Parent() != nil {
diff --git a/weed/topology/topology_map.go b/weed/topology/topology_map.go
index 0ad30f12e..73c55d77d 100644
--- a/weed/topology/topology_map.go
+++ b/weed/topology/topology_map.go
@@ -85,6 +85,7 @@ func (t *Topology) ToTopologyInfo() *master_pb.TopologyInfo {
 		MaxVolumeCount:    uint64(t.GetMaxVolumeCount()),
 		FreeVolumeCount:   uint64(t.FreeSpace()),
 		ActiveVolumeCount: uint64(t.GetActiveVolumeCount()),
+		RemoteVolumeCount: uint64(t.GetRemoteVolumeCount()),
 	}
 	for _, c := range t.Children() {
 		dc := c.(*DataCenter)