Table 28. Event descriptions and recommended actions (continued)
Number
Severity
Description/Recommended actions
112
Warning
The link for the indicated host port has unexpectedly gone down. This can affect host mappings.
Recommended actions:
●
Look for corresponding event 111 and monitor excessive transitions indicating a host-
connectivity or switch problem. If this event occurs more than 8 times per hour, it should be
investigated.
●
This event is probably caused by equipment outside of the storage system, such as faulty
cabling or a faulty switch.
●
If the problem is not outside of the storage system, replace the controller module that logged
this event.
Info.
The link for the indicated host port has gone down because the controller is starting up.
Recommended actions:
●
No action is required.
114
Info.
The link for the indicated disk-channel port is down. Note that events 114 and 211 are logged
whenever a user-requested rescan occurs and do not indicate an error.
Recommended actions:
●
Look for corresponding event 211 and monitor excessive transitions indicating disk problems.
If more than 8 transitions occur per hour, see
Troubleshooting and problem solving
116
Error
After a recovery, the partner controller was killed while mirroring write-back cache data to
the controller that logged this event. The controller that logged this event restarted to avoid
losing the data in the partner controller’s cache, but if the other controller does not restart
successfully, the data will be lost.
Recommended actions:
●
To determine if data might have been lost, check whether this event was immediately
followed by event 56 (Storage Controller booted up), closely followed by event 71 (failover
started). The failover indicates that the restart did not succeed.
117
Warning
This controller module detected or generated an error on the indicated host channel.
Recommended actions:
●
Restart the Storage Controller that logged this event.
●
If more errors are detected, check the connectivity between the controller and the attached
host.
●
If more errors are generated, shut down the Storage Controller and replace the controller
module.
118
Info.
Cache parameters have been changed for the indicated volume.
Recommended actions:
●
No action is required.
127
Warning
The controller has detected an invalid disk dual-port connection. This event indicates that a
controller host port is connected to an expansion port, instead of to a port on a host or a switch.
Recommended actions:
●
Disconnect the host port and expansion port from each other and connect them to the
proper devices.
136
Warning
Errors detected on the indicated disk channel have caused the controller to mark the channel as
degraded.
Recommended actions:
●
Determine the source of the errors on the indicated disk channel and replace the faulty
hardware.
When the problem is resolved, event 189 is logged.
139
Info.
The Management Controller (MC) has powered up or restarted.
84
Events and event messages
