Server auto shutdown, hard disk backplane alarms

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The R4700 G5 server automatically shuts down during operation and is able to reboot with power on, but the HDM prompts a hard disk backplane alarm, which disappears after reboot. Logical disk under HDM is lost, single intel SSD member disk is not recognized, after re-plugging the disk status is Unconfigured Bad, and the capacity shows 0 GB.

Known issue with hard disk: The MOS tube (5015 MOS-FET) inside the hard disk has an oxide breakdown problem, which can cause the internal PLP (Power Loss Protection) circuit to short circuit. 

Link:https://knowledge.h3c.com/Theme/details/192698

Hard disk capacity of 0 when the hard disk itself has failed, if there is data on the disk can not be recovered, you need to replace all the capacity of 0 hard disk.

Replace all hard disks with 0 GB capacity.