单选题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 offB Paging space was not m

第1题：

A system administrator has a server experiencing performance problems with logical volumes within a particular volume group. Which command can report I/O statistics for logical partitions with each logical volume within the volume group？（）

• A、lslv
• B、lsvg
• C、iostat
• D、lvmstat

第2题：

The 'lsvg -o' command is run with an output of only rootvg, but the server has another volume group named datavg, which is notdisplayed. What is the likely cause?（）

• A、datavg is in an offline state.
• B、'lsvg -o' only displays the root volume group.
• C、'lsvg -o' only displays the fist volume group.
• D、datavg has no filesystems and therefore, is inactive.

第3题：

第4题：

Using splitvg to create a snapshot volume group of rootvg results in an error.  What is the most likely cause of the error（）

• A、There is not an available disk to allocate to the snapshot volume group
• B、One of the physical volumes associated with rootvg has a status of "missing"
• C、Rootvg is running in enhanced concurrent mode
• D、A snapshot volume group cannot be created for the rootvg

第5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

第6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7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8题：

第9题：

A previously functional, scheduled snapshot operation against a JFS2 filesystem has failed. The JFS2 filesystem is mounted and appears intact. What is the most likely cause of the failure and how should it be resolved?（）

• A、The associated JFS2 log device has failed. Check the log device and varyon the device.
• B、The logical volume that hosts the snapshots is full. Increase the size of the logical volume.
• C、Fifteen snapshots already exist for the given JFS2 filesystem. Delete at least one existing snapshot.
• D、The volume group that hosts both the snapshots and JFS2 filesystem has lost quorum. Check and correct the integrity of the volume group.

第10题：

A system administrator has backed up the datavg volume group using the savevg command. There are several raw logical volumes and some unmounted jfs filesystems in datavg. Which of the following statements is true about this backup?（）

• A、The volume group and all logical volumes will be recreated. All raw and jfs filesystms will be backed up and restored.
• B、This backup will be bootable and the volume group and all jfs logical volumes will be recreated.
• C、This backup will not be bootable and the restorevg command is used to restore only the mounted and non-raw logical volumes. It will not recreate any logical volumes that are raw or unmounted.
• D、The volume group and all logical volumes information is archived and will be recreated. The raw and unmounted filesystems will not be backed up and therefore not restored.