Owners Manual

Table 27. Event descriptions and recommended actions (continued)
Number Severity Description/Recommended actions
49 Info. A lengthy SCSI maintenance command has completed. (This typically occurs during disk
firmware update.)
Recommended actions:
● No action is required.
50 Error A correctable ECC error occurred in cache memory more than 10 times during a 24-hour period,
indicating a probable hardware fault.
Recommended actions:
● Replace the controller module that logged this event.
Warning A correctable ECC error occurred in cache memory.
This event is logged with Warning severity to provide information that may be useful to technical
support, but no action is required now. It will be logged with Error severity if it is necessary to
replace the controller module.
Recommended actions:
● No action is required.
51 Error An uncorrectable ECC error occurred in cache memory more than once during a 48-hour period,
indicating a probable hardware fault.
Recommended actions:
● Replace the controller module that logged this event.
Warning An uncorrectable ECC error occurred in cache memory.
This event is logged with Warning severity to provide information that may be useful to technical
support, but no action is required now. It will be logged with Error severity if it is necessary to
replace the controller module.
Recommended actions:
● No action is required.
52 Info. Disk group expansion has started.
This operation can take days, or weeks in some cases, to complete. Allow adequate time for the
expansion to complete.
When complete, event 53 is logged.
Recommended actions:
● No action is required.
53 Warning Too many errors occurred during disk group expansion to allow the expansion to continue.
Recommended actions:
● If the expansion failed because of a disk problem, replace the disk with one of the same type
(SSD, enterprise SAS, or midline SAS) and the same or greater capacity. For continued
optimum I/O performance, the replacement disk should have performance that is the same
as or better than the one it is replacing. If disk group reconstruction starts, wait for it to
complete and then retry the expansion.
Info. Disk group expansion either completed, failed immediately, or was aborted by a user.
Recommended actions:
● If the expansion failed because of a disk problem, replace the disk with one of the same type
(SSD, enterprise SAS, or midline SAS) and the same or greater capacity. For continued
optimum I/O performance, the replacement disk should have performance that is the same
as or better than the one it is replacing. If disk group reconstruction starts, wait for it to
complete and then retry the expansion.
Events and event messages 81