3Ware 9550SX-4LP User Manual page 239

AEN Messages
To prevent unclean shutdowns, the user should always go through the normal
shutdown procedure for the operating system in use and use an uninterruptible
power supply (UPS) to prevent unclean shutdowns due to sudden power loss.
009h Drive timeout detected
The 3ware RAID controller has a sophisticated recovery mechanism to handle
various types of failures of a disk drive. One such possible failure of a disk
drive is a failure of a command that is pending from the 3ware RAID
controller to complete within a reasonable amount of time. If the 3ware RAID
controller detects this condition, it notifies the user, prior to entering the
recovery phase, by displaying this AEN.
Possible causes of APORT time-outs include a bad or intermittent disk drive,
power cable or interface cable.
00Ah Drive error detected
As part of the recovery mechanism of the 3ware RAID controller, various
drive failures can be detected and, if possible, corrected. One such drive
failure is when the drive indicates back to the 3ware RAID controller that it
was unable to complete a command. If the drive returns an error to the 3ware
RAID controller, the user is notified by this AEN.
00Bh Rebuild started
The 3ware RAID controller notifies the user whenever it starts a rebuild. The
rebuild start may be user-initiated (by selecting the rebuild button in the 3DM
Disk Management Utility), may be auto-initiated by a hot spare failover, or
may be started after drive removal or insertion (due to the Auto-Rebuild
policy). In any of these cases, the user is notified of the event by this AEN.
00Ch Initialize started
The 3ware RAID controller notifies the user by this AEN whenever it starts
an initialization. Initialization either occurs at array creation time for larger
RAID 5 or 50 arrays or later during the initial verification of redundant arrays.
00Dh Unit deleted
The unit was deleted.
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