单项选择题

In a three-disk volume group, a disk was physically removed from the system without performing any software procedures to properly remove the disk. Which of the following commands should be performed to recover from this error?（）

A.extendvg
B.cfgmgr
C.reducevg
D.varyoffvg

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单项选择题

A system administrator boots a server in normal mode, the boot process displays and LED 551 and stops. LED 551 indicates the root volume group is being varied on. All of the following are probable causes of the problem EXCEPT:（）

A.The bosboot command failed to complete.
B.The JFS log device is corrupted.
C.The initttab file is corrupted.
D.The /dev entries or /etc files are missing.

单项选择题

During an attempt to mount filesystems on the datavg volume group, the following error message occurs: 0506-323 Cannot get information about log device loglv00. The error is due to the fact that the jfslog used by these filesystems is located on a bad disk. Which of the following procedures should be performed to fix the error?（）

A.Run fsck on all filesystems using loglv00
B.Run the logform command against loglv00
C.Recreate the filesystems and resotre form a backup
D.Create a enw jfslog and change /etc/filesystems to point to this log