Avago Technologies 3ware 9650SE-12ML (Channel) - Manual (Page 301)

Error and Notification Messages
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0041 Unit number assignments lost
Event Type
Warning
Cause
The unit number assignments have been lost.
This may have occurred as a result of a soft reset.
Action
Please contact AMCC 3ware technical support at http://www.3ware.com/
support/index.asp.
0042 Primary DCB read error occurred
Event Type
Warning
Cause
The controller found an error while reading the primary copy of the Disk
Configuration Block (DCB).
The controller will attempt to correct the error by reading the back-up copy of
the DCB. If a valid DCB is found, the primary DCB is re-written to rectify the
errors.
Action
AMCC recommends verifying the unit. See “Starting a Verify Manually” on
page 165.
0043 Backup DCB read error detected
Event Type
Warning
Cause
The controller has detected a latent error in the backup Disk Configuration
Block (DCB).