LSI 3ware 9750 User Manual page 278

Chapter 12. Troubleshooting
0041 Unit number assignments lost
0042 Primary DCB read error occurred
0043 Backup DCB read error detected
266
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 LSI 3ware technical support at
http://www.lsi.com/channel/ContactUs
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
LSI recommends verifying the unit. See "Starting a Verify Manually" on
page 152.
Event Type
Warning
Cause
The controller has detected a latent error in the backup Disk Configuration
Block (DCB).
3ware SATA+SAS RAID Controller Card Software User Guide, Version 10.2