单选题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 extendvgB cfgmgrC red

第1题：

Which of the following procedures should occur before removing a failing disk from a volume group?（）

• A、Veryoff the volume group
• B、Unmount any filesystems on the disk
• C、Remove all physical partitions on the disk
• D、Unmount mirrored filesystems from the disk

第2题：

An SSA disk that is part of the mirrored volume group needs to be replaced. Which of the following procedures should be performed before the disk is physically able to be replaced?（）

• A、reducevg, rmdev, syncvg 
• B、rmlvcopy, exportvg, rmdev 
• C、rmlvcopy, reducevg, rmdev 
• D、No action is required since SSA is a Hot Swap device and is mirrored

第3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

第4题：

There is the possibility that hdisk1 in the root volume group is going bad. A decision has been made to replace the disk. After saving all of the data from the disk and unmounting any filesystems on the disk, which of the following commands should be run before removing the disk from the system?（）

• A、chgv -a n hdisk rootvg; rmdev -1 hdisk1 -d
• B、rmdev -1 hdisk1 -d; reducevg -df rootvg hdisk1
• C、reducevg -df rootvg hdisk1; rmdev -1 hdisk1 -d
• D、reducevg -df rootvg hdisk1; rmdev -1 hdisk1

第5题：

A system administrator’s daily monitoring has revealed a failing disk drive. The drive that is failing， hdisk0， is a lvm mirrored drive. What is the first step that should be taken in order to physically replace this drive？（）

• A、Remove the physical volume from the system.
• B、Remove the physical volume from the volume group.
• C、Remove the physical partitions from the volume group.
• D、Remove the logical volume copies from the failing drive.

第6题：

A client needs more disk space for another volume group and has decided to use hdisk12 from the uservg volume group containing hdisk10， hdisk11， and hdisk12 where hdisk10 and hdisk11 have sufficient PPs to contain the volume group data. The client attempted to remove hdisk12 from the volume group but received the following error：  0516-016 Cannot delete physical volume with allocated partitions.  Which of the following commands should be run to correct this problem（）

• A、reducevg hdisk12
• B、rmdev -dl hdisk12
• C、cplv hdisk10 hdisk12
• D、migratepv hdisk12 hdisk10

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第13题：

A system administrator has a failed disk drive that is mirrored to another disk drive. They successfully removed the logical volume copies off of the failed disk drive. Which of the following commands should be used to remove the failed disk drive from the volume group？（）

• A、chvg
• B、rmdev
• C、reducevg
• D、exportvg

第14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

第15题：

A system was running properly until a reboot. Following the reboot， the system LED displayed cycles between 0223 and 0229. Which of the following procedures should be performed next？（）

• A、Power down then power up the system
• B、Boot into diagnostic mode and run fsck
• C、Boot from installation media and run bosboot
• D、Boot into maintenance mode and check the bootlist

第16题：

A system administrator needs to replace a mirrored disk.  After performing the proper removal process and replacing the disk, which of the following set of commands should be performed to bring the disk back into production?（）

• A、 reboot, mklvcopy, syncvg 
• B、 cfgmgr -vl ssar, chvg -va, syncvg 
• C、 cfgmgr, extendvg, syncvg 
• D、 extendvg, mklvcopy, syncvg

第17题：

Error log analysis indicates that a disk is starting to fail and will need to be replaced. The failing disk contains multiple logical volumes which span multiple disks. A free disk has been added to the failing disk’s volume group.Which of the following is the most efficient method to move the data from the failing disk to the new disk？（）

• A、Back up the data， remove the failing disk from the volume group， then restore the data to the new disk.
• B、Use the migratepv command to move data from one disk to another and then remove the failing disk from the volume group.
• C、Use the mirrorvg command to mirror the data to the new disk， break the mirror and then remove the failing disk from the volume group.
• D、Create a new filesystem on the new disk and use the mv command to move the data to the new filesystem， and then remove the failing disk from the volume group.

第18题：

During a system boot, an error message appears concerning a paging space, paging00. The paging space was located on hdisk2, but the disk was removed from the system without proper software procedures. Which of the following commands should be used as the first step in the process of recovery?（）

• A、mkps paging00 hdisk0
• B、chpv -v r hdisk2
• C、chps -a n paging00
• D、reducevg rootvg hdisk2

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