September 28, 20223 yr I have two disks in my array that are showing errors. One was in pre-fail and the other is "FAILING NOW." I accidentally swapped out the pre-fail drive first and it is rebuilding data, I still have the drive that it replaced. How can I return that drive to its original spot in the array so I can rebuild the one that is "failing now?" seabass-diagnostics-20220927-2200.zip
September 28, 20223 yr Community Expert Was anything written to the array after the rebuild started? This includes docker/libvirt images if they are in the array.
September 28, 20223 yr Author Yes I noticed some activity. Didn't realize that my docker containers were still running, shut them down as soon as I realized.
September 28, 20223 yr Community Expert In that case it's not possible to rebuild the other disk since parity will no longer be valid with it, which disk is this? 12 hours ago, seabass said: other is "FAILING NOW."
September 28, 20223 yr Author That is disk 4 which is still in the array. I have disabled any shares from writing to it, shut down docker and vm manager, in hopes this will minimize more problems. I have also copied most of the data on disk 4 to disk 5 using unbalance. A bonehead move on my part, realizing now that I should have swapped it out and let it rebuild. Learning the hard way I guess. So, I am thinking my best course of action now is to let the rebuild finish and overwrite any corrupt data from the original disk; is there any way to integrity check before going this route? What would you recommend? Edited September 28, 20223 yr by seabass
September 28, 20223 yr Community Expert Solution 10 minutes ago, seabass said: is there any way to integrity check before going this route? You'd need to have existing checksums, or be using btrfs, you can still try to rebuild disk4 instead, either way there will likely be some corruption, but depending on how much changed in the array it might be less that this, if the disk is really bad. You can also try ddrescue instead.
September 28, 20223 yr Author Ok, I give that a go. Right now I'm just waiting for the rebuild of disk 2 to finish. Should I try ddrescue on disk 2 before touching disk 4 or replace/rebuild it first?
October 20, 20223 yr Author I actually just dealt with the issue, nothing critical would have been lost. So, far I have not encountered any issues. Thanks for the assist.
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