Dell VERLAND TANDBERG Titan T2000 Owner's Manual page 90

Table 28. Event descriptions and recommended actions (continued)
Number Severity
182 Info.
183 Info.
185 Info.
186 Info.
187 Info.
188 Info.
189 Info.
190 Info.
191 Info.
192 Info.
Description/Recommended actions
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
and problem solving.
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.
An enclosure management processor (EMP) write command has completed.
Recommended actions:
● No action is required.
Enclosure parameters have been changed by a user.
Recommended actions:
● No action is required.
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.
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.
A disk channel that was previously degraded or failed is now healthy.
Recommended actions:
● No action is required.
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.
The auto-write-through trigger event that caused event 190 to be logged has been resolved.
Recommended actions:
● No action is required.
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:
Troubleshooting
Events and event messages 89