单选题The virtual disk hdisk12 has multiple paths. The disk belongs to volume group vg01. The volume group is currently in use. Which command will remove the path connected to vscsi0?（）A rmdev hdsik12 vscsi0rmdev ? hdsik12 ? vscsi0B rmpath hdisk12 vscsi0rmpa

第1题：

The virtual disk hdisk12 has multiple paths. The disk belongs to volume group vg01. The volume group is currently in use.  Which command will remove the path connected to vscsi0？（）  

• A、rmdev  hdsik12  vscsi0rmdev ？ hdsik12 ？ vscsi0
• B、rmpath  hdisk12  vscsi0rmpath ？ hdisk12 ？ vscsi0
• C、chpath  hdisk12  vscsi0 -dchpath ？ hdisk12 ？ vscsi0 -d
• D、varyoffvg vg01； rmdev  hdisk12  vscsi0 varyoffvg vg01； rmdev ？ hdisk12 ？ vscsi0

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：

What must an administrator do to create two new volume groups on a system with only one spare disk?（）

• A、Run the 'mkvg -M' command to create multiple volume groups on a single disk
• B、Add a new disk to the system or release a disk from the one of the existing volume groups
• C、Run the 'mkvg' command to create multiple volume groups on a single disk providing the disk does not have a PVID
• D、Run the 'mkvg' command to create multiple volume groups on a single disk providing the volume groups have the same PP size

第4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：

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：

While adding the forced varyon volume group option， it is decided to create a disk heartbeat  Network over the disk paths. Which HACMP function is used to create disk heartbeat devices？（）

• A、 The Disk hearbeat facility is initialized when creating enhanced concurrent mode volume groups through HACMP.
• B、 HACMP does not create the disk heartbeat area directly； RSCT facility creates the area used for the disk heartbeat when the device is started by Group Services.
• C、 The ’Chdev -v-C " command creates an enhanced Volume Group from an ordinarilyVolume Group. This creates the heartbeat region on the vfirst disk in the chain.
• D、 The disk heartbeat area on the disk is created and initialized when the device is created inHACMP "Extended Configuration -> Extended Topology -> Disk heartbeat facility" smit path.

第15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16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.

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