Hello sci-hpc,   I'm sorry to see the failed drives. I would recommend to consider if you have a backup and  if you need this data but do not have a valid backup that you should contact a Data Recovery company.   Along with what Shine mentioned; the other very concerning thing I see is all the drives report 0GB in size (capacity). Do the drives spin up? Are there any lights lit on the drives?   I can't imagine this happen with just a restart unless some previous issues have been occurring or you have experienced an issue that regular firmware updates could have mitigated. The system is very far behind in firmware and it could be some issue happened that may have been resolved with regular updates. I can't say for sure I'm just trying to give possibilities.   Have you reviewed the iDRAC System Event Log for any issues before this happened?   So after you consider the status of your backup you can try these steps below. I say to consider if you need data recovery as any troubleshooting could make it harder for data recovery if it is possible at all.     The array configuration is stored in two places; the drives and the controller. You may try shut down, unseat all drives, boot to the controller and  clear the configuration and shut down. Then seat all the drives and boot into the Controller BIOS to see if it imported the arrays or has a foreign configuration that you can import.   Next steps you can update the system firmware and retry to import: You will need to step up the BIOS and iDRAC together   iDRAC is thirteen revisions behind 2.63.60.62, A00 27 May 2019 Do 7th 2.61.60.60, A00 05 Dec 2018   2.60.60.60, A00 25 Jun 2018 Do 6th 2.52.52.52, A00 06 Mar 2018   2.50.50.50, A00 26 Sep 2017 Do 5th 2.41.40.40, A00 14 Nov 2016   2.40.40.40, A00 12 Oct 2016   2.30.30.30, A00 30 Mar 2016 Do 4th 2.21.21.21, A00 09 Nov 2015   2.20.20.20, A00 10 Sep 2015 Do 3rd 2.15.10.10, A00 25 Jun 2015   2.10.10.10, A00 05 Apr 2015 Do 2nd 1.66.65, A00 01 Dec 2014 Do 1st 1.57.57, A00 06 May 2014  You are here       BIOS is seven revisions behind 2.8.0 01 Oct 2019 Do 7th 2.7.0 27 Jun 2018 Do 6th 2.6.1 07 Mar 2018 Do 5th 2.5.4 17 Feb 2016 Do 4th 2.5.2 01 Apr 2015 Do 3rd 2.4.3 09 Oct 2014 Do 2nd 2.2.3 30 May 2014 Do 1st 2.2.2 06 Mar 2014 You are here   I can't tell about the PERC controller or the hard drive firmware. You can find the firmware here : [URL]  
Hey, After restarting the server following some changes in the system (on other servers).I restarted the server and encountered several errors:All the disks started flashing amber (13 disks) after a few minutes some became solid green, and all the rest appear as failed state. (Before the restart there was no disk failure)No hardware changes were made to the server.There are 11 disks in RAID 6 (include hotspare)and 2 disks in RAID 1on which the operating system sits.In iDrac I received a message of - RAID 6 Degraded and RAID 1 disappeared. I wish you could help me or at least direct me, I don't have much experience with hardware problems of this magnitude Details of the server : PowerEdge R720xd BIOS Version 2.2.2 Firmware version 1.57.57 (Build 04) Lifecycle controller firmware 2.21.21.21 [IMAGE][IMAGE] I would appreciate any help, advice or guidance on how to proceed from here. Regards, Osher.
Server failure Dell PowerEdge R720xd