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An error occured on customer server like a major event after he made a BIOS / iMANA upgrade:
Sensor:HDD Backplane, Event:Config error, Severity:Deassertion Major, Event Code:0x1b81(0)ffff
The alarm is generated when the HDD Backplane signal cable is lost or disconnected, the hard disk can’t be used and the “HDD Backplane” sensor generate this alarm. When the server made a restart the signal was lost for couple of miliseconds and the HDD Backplane generate a warning, this alarm was ASSERTED and immediately DEASSERTED, was automatically recovered by the system. It's not a reason for concerning.
This alarm was generated after our client made a BIOS / iMANA upgrade, after the upgrade a restart is mandatory, the signal has been lost for few miliseconds when his server made the restart procedure.