Hi all, 

Hoping for some help.

Yesterday one of my data drives had a red cross but I've had this before so I shutdown the array and re-did the data & sata connections, fired it back up again, ran some smart tests and then did a data rebuild. 

This completed but I woke up to one of my parity disks having errors. 

I've done some reading of forum posts but can I just get confimration of my next steps; 

1. run parity check without correcting errors.

2. after that has completed, run it again with the correcting errors box ticked?

Thanks for any help!

Please post the diagnostics.
 

tower-diagnostics-20250221-0714.zip

 

Sorry, yes that would help! 

Looks more like a power/connection issue, check/replace cables for parity and try again

Great news. 

When im back I'll do this. 

Once I turn the server back on, do i run the parity check with or without corrections?

Thanks for your help 

With.

Ahh I knew I should have waited. 

I've already set it going without, should I stop (5hours into a 24hour check) or should I let it continue and then do another check after, with?

just to add to my previous comment, Unraid is saying, "Sync errors corrected: 2562" (there are 3968 errors)

If it says corrected it suggests it's already a correcting check, post the current diags.

tower-diagnostics-20250221-1302.zip

 

Huge potrntial then that I left it ticked.... its been a long day! 

Yes, it's already correcting.

So the parity finished and "corrected" 2562 errors but unraid is still showing 3968 errors next to my parity drive. 

I've now started a non-correcting check, what would be the next steps?

Thanks again for your help so far!

 

tower-diagnostics-20250222-0913.zip

Reboot to clear the read errors and run another parity check, any read or sync errors post new diags.