April 29, 20251 yr So, this morning woke up to a disabled parity disk (1 of 2), user shares not showing up and I'm not sure where to begin, to safely figure out what's going on, and how to rectify the situation. All disk shares are accessible and seem to be working properly. tower-diagnostics-20250429-1037.zip Edited April 29, 20251 yr by ratmice add'l info
April 29, 20251 yr Author I hate to reply to my own post, but digging around I, I get this : as the output to ls -lah /mnt. I assume that this is where the User shares have gone. Can I just: to repair that part, of the issue? Sorry for the noob questions, I am just not very Linux technically inclined.
April 29, 20251 yr Community Expert Solution A reboot should fix the shares issue. Regarding parity, it dropped offline, check/replace cables and post new diags.
April 29, 20251 yr Author I shutdown the server, checked all cables/connections. The user shares did reappear (thanks), but the #1 parity disk is not showing up in the array. Here are the new diagnostics, after reboot. tower-diagnostics-20250429-1335.zip
April 29, 20251 yr Community Expert 11 minutes ago, ratmice said: but the #1 parity disk is not showing up in the array. Swap cables with a different disk, if it still doesn't show, it may have died.
April 29, 20251 yr Author 27 minutes ago, JorgeB said: Swap cables with a different disk, if it still doesn't show, it may have died. No show, must be dead ☠️. Since there is now only 1 parity disk, do I need to rebuild parity to account for the missing second disk, or will the array still be protected, but only from one data disk going down? Sorry, not 100% sure how the disk parity is calculated. Also, do I need to reassign the Parity 2 disk to the single parity slot?
April 29, 20251 yr Community Expert You can continue with only parity2. If you reassign it as parity it will have to be rebuilt.
April 29, 20251 yr Author @trurl and @JorgeB thank you both for your help with this issue, now if only I had a spare drive.
April 30, 20251 yr Community Expert 15 hours ago, ratmice said: Sorry, not 100% sure how the disk parity is calculated. Also, do I need to reassign the Parity 2 disk to the single parity slot? It was implied in the earlier answers (but not explicit) that the parity calculations for parity1 and parity2 are completely independent of each other so having either will protect against a single disk failure.
April 30, 20251 yr Author 6 hours ago, itimpi said: It was implied in the earlier answers (but not explicit) that the parity calculations for parity1 and parity2 are completely independent of each other so having either will protect against a single disk failure. Thanks for making this clear
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