单选题Rootvg has just been mirrored to a second disk. Which of the following actions should be performed to boot the system off of either disk?（）A Extendvg to include both disks in the rootvgB Copy the hd5 logical volume to hdisk1C Run the bosboot and bootli

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：

第4题：

An administrator has mirrored the root volume group to a second disk， but ’bootlist’ is failing to correctly add the second disk.  What is the likely cause of the problem？（）  

• A、The administrator has failed to run ’bosboot -ad <2nd disk>’ prior to the bootlist command.
• B、The administrator has failed to run ’bootinfo -B <2nd disk>’ prior to the bootlist command.
• C、The administrator has failed to run ’mirrorvg -m rootvg <2nd disk>’ prior to the bootlist command.
• D、The administrator has failed to run ’bosboot -ad /dev/ipldevice <2nd disk>’ prior to the bootlist command.

第5题：

After mirroring rootvg, a system administrator wants to validate that the system will boot correctly. Which of the following tasks must be performed before changing the boot order?（）

• A、Run a bosboot -a command
• B、Mirror the hd5 on the two disks
• C、Set up another service mode bootlist
• D、Check the disks using a lsvg -p rootvg command

第6题：

The system administrator notices that there is an I/O bottleneck on one of three disks in datavg volume group. This problem disk contains the JFS log， loglv00 and one filesystem， /mydatabase.  There are no other logical volumes on this disk.  Which of the following options would be the best solution？（）

• A、 Increase the size of the JFS log logical volume so more transacations can be written to this log.
• B、 Create a second， additional JFS log and have the /mydatabase logical volume point to both JFS logs.
• C、 Migrate the JFS log device to another physical disk in the same volume group.
• D、 Only one JFS log device for each volume group can be used.  Use the migratepv command to move the JFS log device to an empty disk in another volume group.

第7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8题：

第9题：

A system 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 testlv
• C、varyoffvg testvg； varyonvg -Qn testvg
• D、varyoffvg testvg； exportvg testvg； importvg -Qn testvg； varyonvg testvg

第10题：

One of the mirrored disks for the root volume group has failed. Although the logical volumes are mirrored, and the bosboot command was run, the machine will not boot. What is the most probable cause?（）

• A、Quorum was not turned off
• B、Paging space was not mirrored
• C、The dump space was not mirrored
• D、The surviving disk was too small