The /systest filesystem is associated with the /dev/testlv logical volume on the ’testvg’ volume group. Given this information， which of the following commands can the system administrator use to determine if the /systest filesystem is mirrored？（）

单项选择题The systestfilesystemisassociatedwiththe dev testlvlogicalvolumeonthetestvgvolumegroup.Thetestvgvolumegroupisassignedtophysicalvolumeshdisk2andhdisk3.Whichcommandcanthesystemadministratorusetodetermineifthe systestfilesystemismirrored？（）

A.df
B.lslv
C.lsfs
D.lsdev

单项选择题Asystemadministratorhasafaileddiskdrivethatismirroredtoanotherdiskdrive.Theysuccessfullyremovedthelogicalvolumecopiesoffofthefaileddiskdrive.Whichofthefollowingcommandsshouldbeusedtoremovethefaileddiskdrivefromthevolumegroup？（）

A.chvg
B.rmdev
C.reducevg
D.exportvg

单项选择题Asystemadministratorwouldliketorenamevolumegroupoldvgtonewvg.Thisvolumegroupresidesonhdisk1.Whatistheappropriateproceduretoperformthis？（）

A.reboot the server in maintenance mode；migratevg -y newvg oldvg；reboot the server in normal mode
B.unmount all filesystems in the volume group；varyoffvg oldvg；migratepv -y oldvg -n newvg  varyonvg newvg
C.unmount all filesystems in the volume group；varyoffvg oldvg；exportvg oldvg；importvg -y newvg hdisk1；mount all
D.unmount all filesystems in the volume group；varyoffvg oldvg；for each logical volume in the volume group do cplv -v oldvg -y newvg；varyonvg newvg；mount all

单项选择题Whichcommandisusedtolistinformationabouteachphysicalvolumeinvolumegrouptestvg？（）

A.lsvg -p testvg
B.lspv -v testvg
C.lslv -l testvg
D.lsattr -v testvg

单项选择题Whichcommandwouldanadministratorusetolistwhichfilesystemsareinvolumegroupdatavg？（）

A.lspv datavg
B.lslv -a datavg
C.lsfs -v datavg
D.lsvg -l datavg