HP MSA Events Description Reference Guide (762785-001, March 2014)

28 Event descriptions
198
Info. A power supply has failed.
This indicates that a trigger condition has occurred that has caused the auto-write-through feature to
disable write-back cache and put the system in write-through mode. When the fault is resolved, event 199
is logged to indicate that write-back mode has been restored.
Recommended actions
• If event 199 has not been logged since this event was logged, the power supply probably does not
have a health of OK and the cause should be investigated. Another power-supply event was probably
logged at approximately the same time as this event (such as event 168); see the recommended
actions for that event.
199
Info. The auto-write-through trigger event that caused event 198 to be logged has been resolved.
Recommended actions
• No action is required.
200
Info. A fan has failed.
This indicates that a trigger condition has occurred that has caused the auto-write-through feature to
disable write-back cache and put the system in write-through mode. When the fault is resolved, event 201
is logged to indicate that write-back mode has been restored.
Recommended actions
• If event 201 has not been logged since this event was logged, the fan probably does not have a
health of OK and the cause should be investigated. Another fan event was probably logged at
approximately the same time as this event (such as event 168); see the recommended actions for that
event.
201
Info. The auto-write-through trigger event that caused event 200 to be logged has been resolved.
Recommended actions
• No action is required.
202
Info. An auto-write-through trigger condition has been cleared, causing write-back cache to be re-enabled. The
environmental change is also logged at approximately the same time as this event (event 191, 193, 195,
199, 2 01, an d 241. )
Recommended actions
• No action is required.
203
Warning An environmental change occurred that allows write-back cache to be enabled, but the auto-write-back
preference is not set. The environmental change is also logged at approximately the same time as this
event ( even t 191, 193 , 195, 199, 2 01, or 241) .
Recommended actions
• Manually enable write-back cache.