Owners Manual
Table Of Contents
- Dell EMC PowerVault ME4 Series Storage System Owner’s Manual
- Contents
- Storage system hardware
- Troubleshooting and problem solving
- Module removal and replacement
- ESD precautions
- Dealing with hardware faults
- Firmware updates
- Continuous operation during replacement
- Shutting down attached hosts
- Shutting down a controller module
- Verifying component failure
- Customer-replaceable units (CRUs)
- Attach or remove the front bezel of a 2U enclosure
- Replacing a drive carrier module in a 2U enclosure
- Replacing a DDIC in a 5U enclosure
- Replacing a controller module or IOM in a 2U or 5U enclosure
- Replacing a power supply unit (PSU) in a 5U enclosure
- Replacing a fan cooling module (FCM) in a 5U enclosure
- Replacing a power cooling module (PCM) in a 2U enclosure
- Completing the component installation process
- Verifying component operation
- Performing updates in PowerVault Manager after replacing an FC or SAS HBA
- Events and event messages
- Connecting to the CLI port using a serial cable
- Technical specifications
- Standards and regulations
Table 27. Event descriptions and recommended actions (continued)
Number Severity Description/Recommended actions
441 Error A request to add a secondary volume failed. User intervention is needed to remove the volume
from the set.
Recommended actions:
● Remove the indicated secondary volume from the replication set.
442 Warning Power-On Self Test (POST) diagnostics detected a hardware error in a UART chip.
Recommended actions:
● Replace the controller module that logged this event.
443 Error The firmware for the indicated enclosure is not supported in this configuration.
The firmware for the indicated enclosure does not support this enclosure for use as an
expansion chassis. Its firmware supports this enclosure only as a direct attached JBOD.
Recommended actions:
● Replace the indicated enclosure. It is not supported.
444 Info. A snap pool is running out of space.
A snap pool reached a capacity threshold and the associated policy completed successfully:
● Delete snapshots
● Halt writes
● Delete oldest snapshot
● Notify only
● Invalidate snapshots
● Auto expand
● Unknown policy
For example, the snap pool was expanded successfully, or the oldest snapshot was deleted, or all
snapshots were deleted. If the policy is Delete Oldest Snapshot, the serial number of the deleted
snapshot is reported.
Recommended actions:
● No action is required.
Warning A snap pool is running out of space.
A snap pool reached a capacity threshold and the associated Auto Expand policy failed because
there is not enough available space in the disk group.
Recommended actions:
● Increase the available space in the disk group either by expanding the disk group or by
removing any unneeded volumes.
449 Info. A roll back was aborted because of an error or other internally detected condition.
This can occur if a roll back is in progress and a user selects to roll back a different volume,
which will abort the first roll back and start a new roll back. A user can't explicitly abort a roll
back because that would corrupt the parent volume.
Recommended actions:
● No action is required.
450 Warning The status of a remote volume changed from online to offline.
This can occur for several reasons, such as:
● The communication link is busy or experienced an error.
● The local initiator experienced an error.
Recommended actions:
● Verify that there are no network issues preventing communication between the local and
remote storage systems.
Events and event messages 113