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ow to Troubleshoot the Fault That One of the S5300 Controllers Periodically Resets?

Publication Date:  2012-07-20 Views:  73 Downloads:  0
Issue Description
On a deployment site, during the maintenance of the S5300, controller A periodically resets without a known reason, which causes that a single controller runs in the system and an alarm is generated.
Alarm Information
Handling Process
Replace controller A with the one that has the same logical version of controller B and upgrade the SES software version and system software version to the latest ones. Note that the management network port on the host should be connected to controller B before you replace controller A. Run the offline -c A command to make controller A online by using the SSH tool, and then replace controller A. After replacement, upgrade the SES and system software on the Web page.
Root Cause
As the logical version controller A is too early and different from the logical version of controller B. After the storage system is powered off and then on, controller A may cause disk bypass. Therefore, only controller B runs and the disks cannot be accessed.