Dell PowerVault ME5 Series Storage System CLI Reference Guide

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scrub volume


Description	Analyzes specified volumes to find and fix disk errors. This command applies to linear storage only. This command acts on the disk portions spanned by each volume, but it does not act on dedicated spares or leftover disks. This command will: Find and fix parity mismatches for RAID 5, RAID 6, and ADAPT. Find, but not fix, mirror mismatches for RAID 1 and 10. The system reads both copies of mirror data to find any mismatches. Find and fix media errors for all RAID levels. Media errors occur when the system cannot read one of the copies of mirror data, due to a disk error such as an unrecoverable disk error (URE). Volume scrub can last over an hour, depending on volume size, utility priority, and amount of I/O activity. You can use a volume while it is being scrubbed. To check the progress of a volume scrub job, use the show volumes command. NOTE: Only one scrub operation can be running on a linear disk group at a time. If a manual scrub is started while a background scrub is in progress, the background scrub will terminate and will start over 24 hours after the manual scrub completes. When a scrub is complete, event 207 is logged and specifies whether errors were found and whether user action is required.
Minimum role	standard
Syntax	scrub volume <volumes>
Parameters	<volumes> The names or serial numbers of the volumes to scrub. A name that includes a space must be enclosed in double quotes.
Examples	Start scrubbing volume vol1. # scrub volume vol1
See also	set advanced-settings abort scrub (with the volume parameter) show volumes