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
● Check that the storage system’s fans are running.
● Check that the ambient temperature is not too warm. The controller enclosure operating
range is 5°C to 35°C (41°F to 95°F). The expansion enclosure operating range is 5°C to
40°C (41°F to 104°F).
● Check for any obstructions to the airflow.
● Check that there is a module or blank plate in every module slot in the enclosure.
● If none of these explanations apply, replace the disk or controller module that logged the
error.
41 Info. The indicated disk has been designated a spare for the indicated disk group.
Recommended actions:
● No action is required.
43 Info. The indicated disk group has been deleted.
Recommended actions:
● No action is required.
44 Warning The controller contains cache data for the indicated volume but the corresponding disk group is
not online.
Recommended actions:
● Determine the reason that the disks comprising the disk group are not online.
● If an enclosure is down, determine corrective action.
● If the disk group is no longer needed, you can clear the orphan data. This will result in lost
data.
● If the disk group is missing and was not intentionally removed, see Troubleshooting and
problem solving on page 30.
47 Info. An error detected by the sensors has been cleared. This event indicates that a problem reported
by event 39 or 40 is resolved.
Recommended actions:
● No action is required.
48 Info. The indicated disk group has been renamed.
Recommended actions:
● No action is required.
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.
Events and event messages 79