I've just setup my first Unraid server, and things were going reasonably  well until I tried to initiate a first parity sync. After ~18 hours, the process is stuck at 42%, and the 'estimated finish' is +685 days 😮.

It seems I can't pause or cancel the sync. I've rebooted the server, but the same issue appears again.

I've attached the diagnostic file to this post, any help would be greatly welcomed.

tower-diagnostics-20240817-2348.zip

Unraid driver crashed, this is almost always a hardware issue, try running memtest, if nothing is found try again.

22 hours ago, JorgeB said:

Unraid driver crashed, this is almost always a hardware issue, try running memtest, if nothing is found try again.

Thanks for your answer.

I will not have physical access to the server before end of August, so I used the "live memory tester" plugin to perform some tests, and I guess the results are not good, right?
 

24 minutes ago, fabienm said:

so I used the "live memory tester" plugin to perform some tests, and I guess the results are not good, right?

No.  Even one error is too many.   Having said that the Live Memory tester is relatively new so we do not yet know how reliable its output is, but I think it is unlikely that it gives false positives.

 

You should check that you do not have the memory overclocked (e.g. using an XMP profile) for your motherboard/CPU combination as this can cause instability.

18 minutes ago, itimpi said:

No.  Even one error is too many.   Having said that the Live Memory tester is relatively new so we do not yet know how reliable its output is, but I think it is unlikely that it gives false positives.

 

You should check that you do not have the memory overclocked (e.g. using an XMP profile) for your motherboard/CPU combination as this can cause instability.

By "the results are not good", I didn't mean it was a false positive, but that the outcome of the tests were not good for my NAS

I'll cancel the parity sync and turn off the NAS until I can check the BIOS settings or replace the RAM.
Thanks for your help!

4 hours ago, fabienm said:

turn off the NAS

Good call. Until the RAM is trustworthy, any data written or read is possibly corrupt.

On 8/18/2024 at 11:27 AM, JorgeB said:

Unraid driver crashed, this is almost always a hardware issue, try running memtest, if nothing is found try again.

So I've changed the RAM and performed a memtest: everything is fine with this new RAM.

When trying to setup parity, I encounter the same issue I before: after a couple of hours of parity-sync, speed is declining to a few MB/sec. I attached the new diagnostic files to this post.

What could be the reason of this issue?

newnas-diagnostics-20240909-1104.zip

Unraid driver crashed again, likely there's still a hardware problem, you can also tri v7.0.0-beta, just to rule out any kernel compatibility issue.

Will I be able to downgrade from beta to regular version if needed?

Yep

So I upgraded to Unraid v7 beta, everything went smoothly, but the issue remains the same: first parity-sync speed plummets after a few % completion. Is there a way to perform a hardware diagnostic in order to identify the culprit?

Basically you'd need to swap around some parts, like board or CPU, could just still be some hardware compatibly issue, though less likely if it happens with both 6.12 and 7.0, since they have very different kernels.