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Troubleshooting
278 3ware SAS/SATA RAID Software User Guide, Version 9.5.1
See Also
For information on scheduling a verify process, see “Scheduling Background
Tasks” on page 173. For information on verification of a unit, see “About
Verification” on page 162.
002A Verify failed
Event Type
Error
Cause
Verification of a unit has terminated with an error. For each RAID level being
verified, this may mean:
Single and Spare. A single drive returned an error, possibly because of a
media defect.
RAID 0. A single drive returned an error, possibly because of a media
defect.
RAID 1 and 10. One side of the mirror does not equal the other side.
RAID 5, 6, and 50. The parity data does not equal the user data.
For any RAID type, the most likely cause of the error is a grown defect in the
drive. For out-of-synchronization mirrors or parity, the error could be caused
by improper shutdown of the unit. This possibility applies to RAID 1, 5, 6, 10,
and 50.
Action
When a verify fails, redundant units will automatically resynchronize user
data through a background initialization. The initialize will not erase user
data, but will recalculate and rewrite user parity data.
If the unit was non-redundant, any data in the error location is lost. (However,
the error could be in a part of the drive that did not contain data.) A unit file
system check is recommended.
Under Windows, right-click on your drive icon and choose
Properties>
Tools> Check Now
.
Under Linux or FreeBSD use
fsck /dev/sda1. If you have more than one
SATA device, substitute the correct drive letter and partition number, such as
sdb2, for sda1.
The resynchronization of data that takes place during a background
initialization can slow down access to the unit. Once initialization has begun,
it cannot be canceled. You can pause it, however, by scheduling it to take
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