单选题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, redu

第1题：

第2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3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4题：

A system administrator has determined a root mirrored disk， hdisk1， needs to be replaced. The root volume has been unmirrored. What is the next step to remove the disk drive？（）

• A、cfgmgr
• B、rmdev -d hdisk1 -l
• C、reducevg rootvg hdisk1
• D、have the IBM CE replace the disk

第5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6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7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：

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14题：

An administrator has a two-disk volume group （testvg） with one logical volume （testlv） which has just  been mirrored across both disk drives.  Which of the following commands can be used to turn off quorum（）

• A、chvg -Qn testvg
• B、chlv -Qn testvg
• C、varyoffvg testvg； varyonvg -Qn testvg
• D、varyoffvg testvg； exportvg testvg； importvg -Qn testvg； varyonvg testvg

第15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16题：

A mirrored root disk needs to be replaced. Which of the following commands will clear the boot record on the failing disk？（）

• A、chpv -c
• B、rmlv hd5
• C、bosboot -ad
• D、rmdev -dl hd5

第17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18题：

A system administrator notices that one of the mirrored disks, hdisk7 on datavg, has had a hardware failure. What is the best method of recover without causing additional problems?（）

• A、unmirrorvg datavg hdisk7 reducevg datavg hdisk7 replace the physical volume, run cfgmgr extendvg datavg hdisk7 mirrovg datavg hdisk7
• B、varyoffvg datavg Rmdev -l hdisk7 -d Replace the physical volu,e run cfgmgr The system will automatically remirror when the disk is replaced
• C、unmirrorvg datavg hdisk7 rmdev -l hdisk7 - d replace the physical volume, run cfgmgr extendvg datavg hdisk7 The system will automatically remirror when the disk is replaced.
• D、unmirrorvg datavg hdisk7 reducevg data hdisk7 rmdev -l hdisk7 -d replace the physical volume, run cfgmgr extendvg datavg hdisk7 mirrovg datavg

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