diff --git a/weed/shell/command_volume_balance.go b/weed/shell/command_volume_balance.go
index ad7da0e44..06a5ebc92 100644
--- a/weed/shell/command_volume_balance.go
+++ b/weed/shell/command_volume_balance.go
@@ -120,21 +120,6 @@ func balanceVolumeServers(commandEnv *CommandEnv, diskTypes []types.DiskType, vo
 
 func balanceVolumeServersByDiskType(commandEnv *CommandEnv, diskType types.DiskType, volumeReplicas map[uint32][]*VolumeReplica, nodes []*Node, volumeSizeLimit uint64, collection string, applyBalancing bool) error {
 
-	// balance writable volumes
-	for _, n := range nodes {
-		n.selectVolumes(func(v *master_pb.VolumeInformationMessage) bool {
-			if collection != "ALL_COLLECTIONS" {
-				if v.Collection != collection {
-					return false
-				}
-			}
-			return v.DiskType == string(diskType) && (!v.ReadOnly && v.Size < volumeSizeLimit)
-		})
-	}
-	if err := balanceSelectedVolume(commandEnv, volumeReplicas, nodes, capacityByMaxVolumeCount(diskType), sortWritableVolumes, applyBalancing); err != nil {
-		return err
-	}
-
 	// balance readable volumes
 	for _, n := range nodes {
 		n.selectVolumes(func(v *master_pb.VolumeInformationMessage) bool {
@@ -150,6 +135,21 @@ func balanceVolumeServersByDiskType(commandEnv *CommandEnv, diskType types.DiskT
 		return err
 	}
 
+	// balance writable volumes
+	for _, n := range nodes {
+		n.selectVolumes(func(v *master_pb.VolumeInformationMessage) bool {
+			if collection != "ALL_COLLECTIONS" {
+				if v.Collection != collection {
+					return false
+				}
+			}
+			return v.DiskType == string(diskType) && (!v.ReadOnly && v.Size < volumeSizeLimit)
+		})
+	}
+	if err := balanceSelectedVolume(commandEnv, volumeReplicas, nodes, capacityByMaxVolumeCount(diskType), sortWritableVolumes, applyBalancing); err != nil {
+		return err
+	}
+
 	return nil
 }