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
○ For a dedicated spare, the disk must be of the same type as the other disks in the disk
group and at least as large as the smallest-capacity disk in the disk group, and it should
have the same or better performance.
○ For a global spare, it is best to choose a disk that is as big as or bigger than the largest
disk of its type in the system and of equal or greater performance. If the system contains
a mix of disk types (SSD, enterprise SAS, or midline SAS), there should be at least one
global spare of each type (unless dedicated spares are used to protect every disk group
of a given type).
79 Info. A trust operation has completed for the indicated disk group.
Recommended actions:
● Be sure to complete the trust procedure as documented in the CLI help for the trust
command.
80 Info. The controller enabled or disabled the indicated parameters for one or more disks.
Recommended actions:
● No action is required.
81 Info. The current controller has unkilled the partner controller. The other controller will restart.
Recommended actions:
● No action is required.
82 Info. Disk channel ID conflict.
Recommended actions:
● No action is required.
83 Info. The partner controller is changing state (shutting down or restarting).
Recommended actions:
● No action is required.
84 Warning The current controller that logged this event forced the partner controller to fail over.
Recommended actions:
● Download the debug logs from your storage system and contact technical support. A service
technician can use the debug logs to determine the problem.
86 Info. Host-port or disk-channel parameters have been changed.
Recommended actions:
● No action is required.
87 Warning The mirrored configuration retrieved by this controller from the partner controller has a bad
cyclic redundancy check (CRC). The local flash configuration will be used instead.
Recommended actions:
● Restore the default configuration by using the restore defaults command, as described
in the CLI Reference Guide.
88 Warning The mirrored configuration retrieved by this controller from the partner controller is corrupt. The
local flash configuration will be used instead.
Recommended actions:
● Restore the default configuration by using the restore defaults command, as described
in the CLI Reference Guide.
89 Warning The mirrored configuration retrieved by this controller from the partner controller has a
configuration level that is too high for the firmware in this controller to process. The local flash
configuration will be used instead.
Recommended actions:
Events and event messages 83