单项选择题
A.Umount the /development filesystem and remount it using the following command： mount -t jfs2 /development
B.Edit the /etc/filesystems file to change the type paramter to "jfs2" and change the log parameter to "jfs2log"
C.Backup the /development filesystem data， delete the JFS /development filesystem， create the new JFS2 /development filsystem， and restore the data to the /development filesystem
D.Backup the /development filesystem data， change the /development filesystem using the following command，chfs -t type=jfs2 /development.then， restore the data to the /development filesystem
单项选择题 Whichcommandswilllistallthelogicalvolumesandthefilesystemdistributionacrossaspecificphysicalvolumeofthefollowing？（）
单项选择题 Asystemadministratorhasaserverexperiencingperformanceproblemswithlogicalvolumeswithinaparticularvolumegroup.WhichcommandcanreportI/Ostatisticsforlogicalpartitionswitheachlogicalvolumewithinthevolumegroup？（）
单项选择题 The/systestfilesystemisassociatedwiththe/dev/testlvlogicalvolumeonthe’testvg’volumegroup.Giventhisinformation，whichofthefollowingcommandscanthesystemadministratorusetodetermineifthe/systestfilesystemismirrored？（）