May 20, 20251 yr I have an array of 16 drives and 2 parity drives. I have a situation where I had a failed drive and ordered a few larger drives that I planned on upgrading the parity drives and then replacing the failed drive. Now a second drive has failed as I wait for the replacement drives to arrive. Unfortunately the drives I have sourced are larger than my parity drives. What is the correct method to swap out both parity drives for the larger drives and replace the failed drives with the current parity drives? It seemed fairly straightforward to do the parity swap with one drive, just want to make sure I don't make a stupid mistake with a second drive now having issues.
May 20, 20251 yr Community Expert In what way did the drives fail? Bad connections are more common than bad disks. Attach Diagnostics ZIP to your NEXT post in this thread.
May 20, 20251 yr Author Sorry thought I had added the Diagnostics zip to the last message. diagnostics-20250519-1414.zip
May 20, 20251 yr Community Expert Diags are after rebooting so we can't see what happened, also looks like the old disks are no longer connected, or are they not being detected?
May 20, 20251 yr Community Expert Note that if you have dual parity you can carry out the parity swap procedure on two drives at the same time.
May 20, 20251 yr Author 42 minutes ago, JorgeB said:Diags are after rebooting so we can't see what happened, also looks like the old disks are no longer connected, or are they not being detected?They are no longer detected. I've checked all cables, but those 2 drives do not sound healthy when power is applied. 6 minutes ago, itimpi said:Note that if you have dual parity you can carry out the parity swap procedure on two drives at the same time.So I would connect the 2 new drives to replace the failed drives, follow the parity swap procedure. Perfect, just wanted to ensure I could do both at the same time! Thank you for your help.
May 20, 20251 yr Community Expert 6 minutes ago, happyflame4764 said:Perfect, just wanted to ensure I could do both at the same time!Yes, that's fine.
June 3, 20251 yr Author Solution Just to bring conclusion to this. I ended up sourcing a couple of 8TB drives locally for a decent price and had those rebuild the failed drives, then swapped each parity drive 1x1.
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