I have a problem that one disk in my array failed, with it becoming unsupported fs,

unraid offered me to format it so I took it out of the array, formatted it, powered on the array without it and then reassigned it and let it count parity, unfortunately in this case I lost the data on this drive, (if anyone knows how to recover it I would be glad).

So I'm looking for another disk and in between something happened and it started throwing a lot of disk errors in my syslog. input output error or something.

Can the more experienced ones please help me?

 

aelothtower-diagnostics-20240220-0846.zip

Edited March 3, 20251 yr by Aeloth

Formatting is never part of a rebuilt, also not sure what you mean by formatted outside the array, if you then rebuild the format won't matter, log is filled with ATA errors for disk2, check/replace cables for that disk and post new diags after array start.

I checked the cables and eventually replaced the disk, parity stuck at 47% with a full log, I couldn't help but restart the server even canceling parity didn't help. In the log there was a problem with disk 1 which had 8mil. errors on it from parity check. i checked the cables again and found a problem with the molex cable, fixed it had a sync. done and fine and this morning disk 3 disconnected... so i repaired the cables and now i'm counting parity again. The diagnostics file is before the last cable check.

 

 

aelothtower-diagnostics-20240226-2115.zip

You are using a controller with SATA port multipliers, those are not recommended, they can cause those sort of issues, could also be a power/connection issue.

And how would I be able to connect 20 disks to this motherboard  ? But what can I replace it with? I don't want to buy a new setup, I built this one about a year ago.

1 hour ago, Aeloth said:

And how would I be able to connect 20 disks to this motherboard  ?

Using a controller without a SATA port multiplier:

 

https://forums.unraid.net/topic/102010-recommended-controllers-for-unraid/