-bash-3.2# diskutil repairVolume disk20
Started file system repair on disk20 Macintosh HD
Verifying storage system
Performing fsck_cs -n -x --lv --uuid 95A6165C-61C7-4E65-9DB7-6E88291BCB94
Checking volume
disk0s2: Scan for Volume Headers
disk0s2: Scan for Disk Labels
Logical Volume Group...