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
○ If this event is being logged by only one controller in a dual-controller system, swap
the Ethernet cables between the two controllers. This will show whether the problem is
outside or inside the storage system.
○ If the problem is not outside of the storage system, replace the controller module that
logged this event.
176 Info. The error statistics for the indicated disk have been reset.
Recommended actions:
● No action is required.
177 Info. Cache data was purged for the indicated missing volume.
Recommended actions:
● No action is required.
181 Info. One or more configuration parameters associated with the Management Controller (MC) have
been changed, such as configuration for SNMP, SMI-S, email notification, and system strings
(system name, system location, etc.).
Recommended actions:
● No action is required.
182 Info. All disk channels have been paused. I/O will not be performed on the disks until all channels are
unpaused.
Recommended actions:
● If this event occurs in relation to disk firmware update, no action is required. When the
condition is cleared, event 183 is logged.
● If this event occurs and you are not performing disk firmware update, see Troubleshooting
and problem solving on page 30.
183 Info. All disk channels have been unpaused, meaning that I/O can resume. An unpause initiates a
rescan, which when complete is logged as event 19.
This event indicates that the pause reported by event 182 has ended.
Recommended actions:
● No action is required.
185 Info. An enclosure management processor (EMP) write command has completed.
Recommended actions:
● No action is required.
186 Info. Enclosure parameters have been changed by a user.
Recommended actions:
● No action is required.
187 Info. The write-back cache has been enabled.
Event 188 is the corresponding event that is logged when write-back cash is disabled.
Recommended actions:
● No action is required.
188 Info. Write-back cache has been disabled.
Event 187 is the corresponding even that is logged when write-back cache is disabled.
Recommended actions:
● No action is required.
189 Info. A disk channel that was previously degraded or failed is now healthy.
Recommended actions:
90 Events and event messages