Avago Technologies 3ware SAS 9750-16i4e - Manual (Page 260)

Chapter 12. Troubleshooting
248 3ware SATA+SAS RAID Controller Card Software User Guide, Version 10.2
Cause
A drive was connected to the controller while the controller was powered on.
Action
The drive is now available for use. If the drive is part of a unit add the
remaining drives and rescan the controller, in 3DM2 or CLI, to bring the unit
online.
001E Unit inoperable
Event Type
Error
Cause
The 3ware RAID controller is unable to detect sufficient drives for the unit to
be operable. Some drives have failed or are missing.
Examples of inoperable units are as follows:
• RAID 0 missing any drives.
• A RAID 5 or 50 unit with two or more drives missing from the same
RAID 5 unit or subunits.
• A RAID 10 unit with both drives missing from one of the RAID 1
subunits.
• A RAID 6 unit with three or more drives missing.
Note: The controller only generates this message if the unit is missing drives
for more than 20 seconds. This allows a hot swap of a drive to be completed
without generating this error.
Action
The unit is no longer available for use. Return all missing drives to the unit. If
the drives are physically present, check all data and power connections.
CAUTION: Do not delete the inoperable unit and recreate it as this will
overwrite the data and make data recovery very difficult.
You may wish to contact technical support at
http://www.lsi.com/channel/ContactUs .
See Also
“About Inoperable Units” on page 139