#smit mksysb,报下列错误? COMMAND STATUS Command: failed stdout: yes stderr: no Before command completion, additional instructions may appear below. Creating information file (/image.data) for rootvg. Creating list of files to back up... Backing up 120772 filesbackup: 0511-089 Cannot open /lvdata: Cannot write to a d irectory. 0512-005 mksysb: Backup Completed. The backup command completed with errors. The messages displayed on Standard Error contained additional information. 请教原因?