Number Severity Description/Recommended actions
• If none of the above explanations apply, replace the controller module that logged the error.
When the problem is resolved, event 468 is logged.
470 Warning Removal of the indicated disk group(s) completed with failure.
Removal of disk groups can fail for several reasons, and the specic reason for this failure is included with the
event. Removal most often fails because there is no longer room in the remaining pool space to move data
pages o of the disks in the disk group.
Recommended actions:
• Resolve the issue specied by the error messaging included with this event and re-issue the request to
remove the disk group.
Info. Removal of the indicated disk group(s) completed successfully.
Recommended actions:
• No action is required.
473 Info. The indicated volume is using more than its threshold percentage of its virtual pool.
This is an indication that the storage usage crossed the user-specied threshold for this volume. If the storage
usage drops below the threshold, event 474 is logged.
Recommended actions:
• No action is required. How this information is utilized is left to the discretion of the user.
474 Info. The indicated volume is no longer using more than its threshold percentage of its virtual pool.
This event indicates that the condition reported by event 473 is no longer applicable.
Recommended actions:
• No action is required.
476 Warning The CPU temperature exceeded the safe range so the CPU entered its self-protection state. IOPS were
reduced.
The storage system is operational but I/O performance is reduced.
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 airow.
• Check that there is a module or blank plate in every module slot in the enclosure.
• If none of the above explanations apply, replace the controller module that logged the error.
When the problem is resolved, event 478 is logged.
477 Info. The CPU temperature exceeded the normal range so the CPU speed was reduced. IOPS were reduced.
The storage system is operational but I/O performance is reduced.
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 airow.
116 Events and event messages
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