diff --git a/cli/cmd/vol.go b/cli/cmd/vol.go
index f7dc248cb..c1141a047 100644
--- a/cli/cmd/vol.go
+++ b/cli/cmd/vol.go
@@ -807,7 +807,7 @@ func newVolUpdateCmd(client *master.MasterClient) *cobra.Command {
 	cmd.Flags().IntVar(&optVolQuotaOfClass, CliFlagVolQuotaOfClass, -1, "specify quota of target storage class, GB")
 
 	cmd.Flags().Int64Var(&optTrashInterval, CliFlagTrashInterval, -1, "The retention period for files in trash")
-	cmd.Flags().Int64Var(&optAccessTimeValidInterval, CliFlagAccessTimeValidInterval, -1, "Effective time interval for accesstime, at least 1800 [Unit: second]")
+	cmd.Flags().Int64Var(&optAccessTimeValidInterval, CliFlagAccessTimeValidInterval, -1, fmt.Sprintf("Effective time interval for accesstime, at least %v [Unit: second]", proto.MinAccessTimeValidInterval))
 	cmd.Flags().StringVar(&optEnablePersistAccessTime, CliFlagEnablePersistAccessTime, "", "true/false to enable/disable persisting access time")
 	cmd.Flags().StringVar(&optForbidWriteOpOfProtoVer0, CliForbidWriteOpOfProtoVersion0, "",
 		"set volume forbid write operates of packet whose protocol version is version-0: [true | false]")
diff --git a/metanode/partition_fsmop_inode.go b/metanode/partition_fsmop_inode.go
index 1ed45b87d..cde49656d 100644
--- a/metanode/partition_fsmop_inode.go
+++ b/metanode/partition_fsmop_inode.go
@@ -1286,7 +1286,7 @@ func (mp *metaPartition) fsmInternalBatchFreeMigrationExtentKey(val []byte) (err
 					mp.config.PartitionId, ino.Inode, proto.StorageClassString(ino.StorageClass))
 			} else {
 				mp.putReplicaMigrationExtentKeyToDelChannel(ino)
-				log.LogWarnf("[fsmInternalBatchFreeMigrationExtentKey] mpId(%v) inode(%v) storageClass(%v) migration SortedExtents pushed into extDelCh",
+				log.LogInfof("[fsmInternalBatchFreeMigrationExtentKey] mpId(%v) inode(%v) storageClass(%v) migration SortedExtents pushed into extDelCh",
 					mp.config.PartitionId, ino.Inode, proto.StorageClassString(ino.StorageClass))
 			}
 		}