A system administrator needs to backup datavg which contains a database that pre-allocates files by padding them with nulls, similar to treating them as sparse files. In order to effectively backup and be able to restore the datavg files, which backup method should be used?（）

单项选择题Which of the following sequence of commands should be used to list the directories and files saved on a mksyst tape that has been rewound and placed in device rmt0?（）

A.tet1 -f /dev/rmt0 fsf 2; restore -xqvf /dev/rmt0
B.tet1 -f /dev/rmt0.1 fsf2; restore -Tvf /dev/rmt0.1
C.tet1 -f /dev/rmt0.1 fsf3; restore Tqvf /dev/rmt0.1
D.tet1 -f /dev/rmt0.1 fsf3; restore -Tvf /dev/rmt0.1

单项选择题Which of the following is backed up with the mksysb command when a system consists of the volume groups rootvg, vol1, and vol2?（）

A.All filesystems in rootvg, vol1, vol2
B.All locally mounted filesystems in the rootvg
C.All files in the rootvg and system files in vol1 and vol2
D.All local and remotely mounted filesystems

单项选择题A customer has just received three enterprise systems that support a total of 48 LPARs. Which installation method expedite the process?（）

A.Network installation manager
B.Boot from installation media
C.A migration install
D.Copy the system using the HMC

单项选择题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

单项选择题Users are complaining of slow performance. The iostat command indicates hdiskkxx is extremely busy. There is no activity on any other hdisks in the same volume group. Which of the following is the best action to take?（）

A.Change intra policy to outer
B.Change intra policy to center
C.Change inter policy to maximum
D.Increase the physical partition size