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
This can be a normal operation, but in some cases this can indicate a problem.
Recommended actions:
● Make sure that there are no network issues.
● Make sure that there is sufficient bandwidth between the primary and secondary systems.
● Make sure that the interval between replications is set to a sufficient amount of time to allow
replications to complete. Having too many replications queued can result in some replications
not completing.
435 Warning A replication set could not be initialized. The firmware version of the remote system is not
compatible with the local system.
Recommended actions:
● Update the firmware on one or both systems so they are running the same version.
● Check your network or fabric for abnormally high congestion or connectivity issues.
436 Warning Firmware in the remote system is incompatible with firmware in the local system so they cannot
communicate with each other to perform replication operations.
Recommended actions:
● Update the firmware on one or both systems so they are running the same version.
437 Info. A request by a user to change the primary volume of a replication set was started.
Recommended actions:
● No action is required.
438 Info. A request by a user to change the primary volume of a replication set completed successfully.
Recommended actions:
● No action is required.
439 Error A request to change a primary volume failed.
This can occur for several reasons, such as:
● The volume is not in the replication set.
● Configuration tag or configuration data not found.
● The retry limit has been reached.
Recommended actions:
● Verify that the specified volume is part of the replication set.
● Verify that there are no network issues preventing communication between the local and
remote storage systems.
440 Warning A replication is being retried due to an error in the secondary volume.
This can occur for several reasons, such as:
● The cache request was aborted.
● The cache detected that the source or target volume is offline.
● The cache detected a media error.
● The snap pool is full.
● The communication link is busy or experienced an error.
● The snapshot being used for the replication is invalid.
● There was a problem establishing proxy communication.
●
The replication is being automatically retried according to policies in place. If the issue is
resolved before retries are exhausted, the replication will continue on its own. Otherwise, it
will go into a suspended state unless the policy is set up to retry forever.
Recommended actions:
● If any of the above problems exist, resolve them.
112 Events and event messages