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？（）

The systestfilesystemisassociatedwiththe dev testlvlogicalvolumeonthe’testvg’volumegroup.Giventhisinformation，whichofthefollowingcommandscanthesystemadministratorusetodetermineifthe systestfilesystemismirrored？（）

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

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The systestfilesystemisassociatedwiththe dev testlvlogicalvolumeonthetestvgvolumegroup.Thetestvgvolumegroupisassignedtophysicalvolumeshdisk2andhdisk3.Whichcommandcanthesystemadministratorusetodetermineifthe systestfilesystemismirrored？（）

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

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