Dell PowerScale OneFS Reference Manual page 202

Administrator action
Perform the following steps in the order listed. If the issue resolves after a step, there is no need to complete the subsequent
steps.
● (HD400 only) Make sure that the drive drawer is properly shut by sliding it out and re-closing it firmly but carefully.
● Review the temperature statistics for the affected sensor, which are included in the event. If the temperature is consistently
elevated, the problem is likely a high ambient temperature in the data center. Address any changes in the cluster
environment such as air conditioning outages.
● Verify that air flow within the rack, and through the front and rear panel vents of the node, is not obstructed in any way.
● Make sure that the faceplate on the affected node is installed, properly seated, and undamaged. In some cases, removing
and re-seating the faceplate will resolve this issue.
● Run the isi_hw_status command. Review the output to determine whether there is a slow or failed fan that was not
otherwise reported.
● Check for high CPU and disk usage in the node. High usage can contribute to high temperatures within the node.
If the steps above were unsuccessful in clearing this event, the subsystem that monitors the health of the hardware (such as
the temperature and fan speeds) might have encountered a problem. This event can occur intermittently without harm to the
system and you can safely quiet the event unless the issue persists.
If the above steps do not resolve the issue, gather logs, and then contact Technical Support for additional troubleshooting. For
instructions on how to gather cluster logs, see
920100001
There are multiple battery issues that might cause this event to occur.
Description
A connection with a single battery is lost. The HD400, S210, and X410 nodes will continue to operate when connection with a
single battery is lost; other node models will be placed in a read-only state until connection with both batteries is restored.
Administrator action
Gather logs, and then contact Technical Support for additional troubleshooting. For instructions on how to gather cluster logs,
see Gathering cluster logs.
920100002
The Chassis Management Controller (CMC) is not monitoring the specified sensor.
Description
The subsystem that monitors the health of the hardware (such as the temperature and fan speeds) might have failed. The event
will clear when the CMC starts monitoring the sensor again.
Administrator action
If the event occurs once, you can safely ignore it.
If the event persists, gather logs, and then contact Technical Support for additional troubleshooting. For instructions on how to
gather cluster logs, see Gathering cluster
202 Hardware events
Gathering cluster logs.
logs.