February 21Feb 21 Hello all.Long story short. Had slight power issue this morning. 2 drives in error state. Restarted array and now they are recognized as new devices. I have dual parity. If I add them back to the array, it says all data will be overridden. If I start the array will the old data be written back to the drives? Or will they be blank and I lose that data?
February 21Feb 21 Community Expert Can't tell anything about your filesystems without the array startedStart the array and post new diagnostics.
February 21Feb 21 Author I guess that is what I was afraid to do. Should I start the array without those disks mounted? It should just emulate the data right? If I mount them, it will "override the data".
February 21Feb 21 Community Expert I see. You reassigned them so they are ready to be rebuilt.Unassign them, start the array in normal (not maintenance mode), post new diagnostics
February 21Feb 21 Community Expert Your use of the word "mount" is incorrect."mount" is when the OS loads the filesystem to make its contents accessible.We want the disks not assigned so rebuild won't start, but we want to make sure the emulated disks are mountable.
February 21Feb 21 Author Thank you for the correction. New Diag attached. tower-diagnostics-20260220-2024.zip
February 21Feb 21 Community Expert Solution Both emulated disks are mountable.We need to fix why they became disabled before attempting rebuild.SMART for both disks looks OK, previous syslog seems to indicate a problem communicating with the disks, connection or controller issue.Looks like they are both on this controller:08:00.0 Serial Attached SCSI controller [0107]: Broadcom / LSI SAS2008 PCI-Express Fusion-MPT SAS-2 [Falcon] [1000:0072] (rev 03) Subsystem: Broadcom / LSI 9211-8i [1000:3020] Kernel driver in use: mpt3sas Kernel modules: mpt3sasMake sure it has plenty of cooling.Check connections, both ends, power and data, including splitters.
February 21Feb 21 Author reseated everything. It was embarrassingly dusty. Like I had to take a step back when I blew the compressed air on it. I periodically clean it, but we had some construction recently which could have exasperated it. Should I try to reassign the drives? Or would you like another diagnostic?
February 21Feb 21 Community Expert That looks OK. Of course, it won't really try to use those drives until you begin rebuild.
February 21Feb 21 Community Expert 5 minutes ago, patm95 said:when I reassignand start the array then5 minutes ago, patm95 said:it will automatically rebuild
February 21Feb 21 Community Expert During rebuild, you should see lots of writes to rebuilding disks, lots of reads from all other disks, zeros in the Errors column for all disks.
February 21Feb 21 Author So far, so good. On pace to finish by tomorrow afternoon. Thank you my friend!
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