Help! Panicking inside.

I was replacing an array drive the normal way and all seemed well as it was rebuilding. Went to bed and woke up to drive being replaced disabled and unresponsive. Self test is good. Started the "rebuilding the a drive onto itself" process and at step 7 into 8 i am now showing a parity drive disabled. I am scared to proceed for fear of data loss. Right now I am sitting with array started in maintenance mode while i figure this out.

Edited June 29, 20251 yr by loganlaporte
topic update

Attach Diagnostics ZIP to your NEXT post in this thread.

13 minutes ago, loganlaporte said:

array started in maintenance mode

Start the array in normal mode then

1 minute ago, trurl said:

Attach Diagnostics ZIP to your NEXT post in this thread.

Diagnostics attached. Normal did trigger the data rebuild but parity 2 still down.

server-diagnostics-20250618-1059.zip

Possibly you disturbed connections while replacing disks, but I don't see any indication of bad connections in the syslog. However, since parity2 is disabled, it isn't being used for the rebuild, so maybe it has a connection problem.

Emulated disk1 is mounted, and SMART for both disks looks OK.

You can rebuild both at the same time after checking connections.

ok i was able to get disk 1 to reubuild. parity 2 is still dead even through its passing a smart test. Can someone tell me more? Diagnostics attached,

server-diagnostics-20250620-1518.zip

Did you try to re-sync parity? It's not on the diags: https://docs.unraid.net/unraid-os/manual/storage-management#rebuilding-a-drive-onto-itself

tried re-sync and parity rebuild and only made it 4% before it dropped again. Diagnostics attached.

server-diagnostics-20250623-1641.zip

Disk dropped offline, this is typically a power/connection issue, replace cables and try again.

@JorgeB or @trurl I think I am chasing something os related. Still cant replace the parity 2 drive as it gets someway through and falls off, and now a disk in the array has fallen off but is passing smart tests and communicating temps and everything. I went ahead and replaced the controller and cables for a sanity check and nothing. Let me know if something stands out.

With a single usable parity drive and an array disk offline this is getting sketchy.

server-diagnostics-20250628-2043.zip server-smart-20250628-2026.zip

Could I be chasing a pcie lane issue or something else? I just have reservations the ironwolf drive just randomly went bad. Should i look into a rebuild?

6 hours ago, loganlaporte said:

Could I be chasing a pcie lane issue or something else?

It cannot be that, lanes are available or not, they do not disappear midway using them.

Diags are after a reboot, so we can't see what happened to disk10, but most likely, also a power/connection issue