Dell EMC PowerVault ME484, Руководство пользователя

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Number Severity Description/Recommended actions
tolerant with a down disk), CRIT (critical), or OFFL (offline), depending on the RAID level and the number of
disks that failed.
Recommended actions:
• Look for another event logged at approximately the same time that indicates a disk failure, such as event
55, 58, or 412. Follow the recommended actions for that event.
Info. Either:
• Disk group creation completed successfully.
• Disk group creation failed immediately. The user was given immediate feedback that it failed at the time
they attempted to add the disk group.
Recommended actions:
• No action is required.
7 Error In a testing environment, a controller diagnostic failed and reports a product-specific diagnostic code.
Recommended actions:
• Perform failure analysis.
8 Warning One of the following conditions has occurred:
• A disk that was part of a disk group is down. The indicated disk in the indicated disk group failed and the
disk group probably has a status of FTDN (fault tolerant with a down disk), CRIT (critical), or OFFL
(offline), depending on the RAID level and the number of disks that failed. If a spare is present and the disk
group is not offline, the controller automatically uses the spare to reconstruct the disk group. Subsequent
events indicate the changes that happen to the disk group. When the problem is resolved, event 9 is
logged.
• Reconstruction of a disk group failed. The indicated disk was being used as the target disk for
reconstructing the indicated disk group. While the disk group was reconstructing, another disk in the disk
group failed and the status of the disk group went to OFFL (offline). The indicated disk has a status of
LEFTOVR (leftover).
• An SSD that was part of a disk group has reported that it has no life remaining. The indicated disk in the
indicated disk group failed and the disk group probably has a status of FTDN (fault tolerant with a down
disk), CRIT (critical), or OFFL (offline), depending on the RAID level and the number of disks that failed. If
a spare is present and the disk group is not offline, the controller automatically uses the spare to
reconstruct the disk group. Subsequent events indicate the changes that happen to the disk group. When
the problem is resolved, event 9 is logged.
Recommended actions:
• If a disk that was part of a disk group is down:
– If the indicated disk failed for one of these reasons—excessive media errors, imminent disk failure,
possible hardware failure, disk is not supported, too many controller-recoverable errors, illegal request,
due to being degraded, or due to being too slow—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 the indicated disk failed because a user forced the disk out of the disk group, RAID-6 initialization
failed, or for an unknown reason:
◦ If the associated disk group is offline or quarantined, contact technical support.
◦ Otherwise, clear the disk’s metadata to reuse the disk.
– If the indicated disk failed because a previously detected disk is no longer present:
◦ Reinsert the disk or insert a replacement disk of the same type (SSD, enterprise SAS, or midline
SAS) and the same or greater capacity as the one that was in the slot. 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.
82 Events and event messages