118 Alphabetical list of commands
scrub vdisk
Description Analyzes specified vdisks to detect, report, and store information about disk defects. Vdisk-level
errors reported include: hard errors, media errors, and bad block replacements (BBRs). Disk-level
errors reported include: metadata read errors, SMART events during scrub, bad blocks during scrub,
and new disk defects during scrub.
For RAID 3, 5, 6, and 50, scrub checks all parity blocks to find data-parity mismatches. For RAID 1
and 10, scrub compares the primary and secondary disks to find data inconsistencies. For NRAID
and RAID 0, scrub checks for media errors.
A scrub can last over an hour, depending on vdisk size, utility priority, and amount of I/O activity.
However, a “foreground” scrub performed with this command is typically faster than a background
scrub enabled with the set job-parameters command. You can use a vdisk while it is being scrubbed.
When the scrub is complete, an event with code 207 is logged that specifies whether errors were
found. For details, see the Event Descriptions Reference Guide.
Syntax
scrub vdisk vdisks
Parameters vdisks
Names or serial numbers of the vdisks to scrub. For vdisk syntax, see Command syntax on page 21.
Example Scrub the disks in vdisk vd1:
# scrub vdisk vd1
Info: Scrub was started on vdisk vd1.
See also • abort scrub
• set advanced-settings
• set job-parameters
• show vdisks
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