Avago Technologies 3ware SAS 9750-16i4e - Manual (Page 252)

Chapter 12. Troubleshooting
240 3ware SATA+SAS RAID Controller Card Software User Guide, Version 10.2
Error and Notification Message Details
0001 Controller reset occurred
Event Type
Information
Cause
The device driver has sent a soft reset to the 3ware RAID controller. The
driver does this when the controller has not responded to a command within
the allowed time limit (30 sec.). After the soft reset command has been sent,
the driver will resend the command.
Action
If this message occurs more than three times a day, collect the system logs and
contact Technical Support.
See Also
For how to collect the system logs, search the LSI KnowledgeBase for
keyword 12278 at
http://kb.lsi.com .
0002 Degraded unit
Event Type
Error
Cause
An error was encountered and the unit is now operating in degraded (non-
redundant) mode. This is usually due to a drive failure or the physical removal
of a drive from a redundant unit.
Action
Check hardware connections and reseat the drive or drives. Rescan the
controller from 3DM2 or CLI to see if the unit has been restored. If you are
able to restore the unit before any data has been written to the unit, a rebuild
will not be necessary. If the unit remains degraded, replace the missing or
dead drives and initiate a rebuild.