Table 28. Event descriptions and recommended actions (continued)
Number Severity Description/Recommended actions
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.
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:
● No action is required.
190 Info. The controller module's supercapacitor pack has started charging.
This change met a condition to trigger the auto-write-through feature, which has disabled
write-back cache and put the system in write-through mode. When the fault is resolved, event
191 is logged to indicate that write-back mode has been restored.
Recommended actions:
● If event 191 is not logged within 5 minutes after this event, the supercapacitor has probably
failed and the controller module should be replaced.
191 Info. The auto-write-through trigger event that caused event 190 to be logged has been resolved.
Recommended actions:
● No action is required.
192 Info. The controller module's temperature has exceeded the normal operating range.
This change met a condition to trigger the auto-write-through feature, which has disabled
write-back cache and put the system in write-through mode. When the fault is resolved, event
193 is logged to indicate that write-back mode has been restored.
Recommended actions:
Events and event messages 89
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