Checking Data Parity - Sun Microsystems StorEdge T3 Service Manual

5.1.3

Checking Data Parity

Caution – It can take up to several hours for the parity check once the vol verify
command is executed. Execution of this command might affect system performance,
depending on system activity and the verification rate selected.
Use the vol verify command to perform a parity check of the drives.
:/:<7> vol verify volume name
You can also use the fix and rate options:
:/:<7> vol verify volume name [fix] [rate <1-8>]
Where:
fix recalculates and rewrites the parity block if a mismatch is detected.
rate specifies the speed with 1= slowest and 8 = fastest.
Note – The vol command is not re-entrant. Other vol commands cannot run on the
array or partner group until the vol verify operation has completed.
Note – It is a good practice to run vol verify before recycling backup tapes to be
sure the image is correct before over-writing previous images.
5-4 Sun StorEdge T3 and T3+ Array Field Service Manual • September 2001