3Ware 3W-6800 - Escalade 6800 RAID Controller, User Manual

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Troubleshooting
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Replacing the missing or dead drive and initiating a rebuild will
change the state of the array from an incomplete unit to OK.
AEN 007h AEN_INIT_DONE
The storage switch has completed the initialization sequence and
performs the initialization step at array creation time of RAID lev-
els 1, 10 and 5. For RAID 5, the data on the array is read and the
resultant parity is written to the parity area on the array. For RAID 1
and 10, one half of the mirror is copied to the other half (mirrors are
synchronized).
AEN 008h AEN_UNCLEAN_SHUTDOWN
The storage switch has the ability to detect if the system has been
shutdown via the standard shutdown mechanism of the operating
system (clean shutdown). If the system loses power or is reset with-
out going through the normal shutdown procedure, it is possible
that the data on a redundant array may be out of synchronization.
The unclean shutdown detection will detect this case and force the
array to enter the rebuilding state. This has the effect of synchroniz-
ing the array back to a fully redundant state.
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 shut-
downs due to sudden power loss.
AEN 009h AEN_APORT_TIMEOUT
The storage switch has a sophisticated recovery mechanism to han-
dle various types of failures of a disk drive. One such possible fail-
ure of a disk drive is a failure of a command that is pending from
the storage switch to complete within a reasonable amount of time.
If the storage switch detects this condition, it notifies the user, prior
to entering the recovery phase, by displaying this AEN.