Can I fix this disk or is it dead?

[kysriel]

Hi there,

 

I just revived my old unRaid system and unfortunately it seems like one disk is somehow not usable anymore. I get I/O errors during parity rebuild. I changed the cable but it is still having issues.  It doesn't seem to want to do a SMART test. What infos can I provide?

[trurl]

1 minute ago, kysriel said:

old unRaid

What version? 

[kysriel]

I had a 5.x.x running but managed to upgrade to 6.11.1

[JorgeB]

Disk dropped offline, that's why there's no SMART, you should check/replace cables and then post diags, assuming it's v6.

[kysriel]

I changed cables for new ones today. Restarted the NAS and did a short SMART Test. I'm starting an extended test right now

cerebrum-smart-20221018-1657.zip

[JorgeB]

SMART looks fine, most likely a power/SATA cable problem.

[trurl]

1 hour ago, kysriel said:

upgrade to 6.11.1

attach diagnostics to your NEXT post in this thread

[trurl]

1 hour ago, kysriel said:

extended test

You will have to disable spindown on the disk

[ChatNoir]

1 hour ago, trurl said:

You will have to disable spindown on the disk

I think that now you cannot run an extended SMART if spin down is active.

 

[JorgeB]

Yes, this changed since v6.10 IIRC.

[kysriel]

Changed SATA cable and gave the drive a seperate power line (same PSU though since I don't have a spare one). While rebuilding parity again errors occured and the drive disabled. All other drives are fine. Since I'm thinking of upgrading the NAS anyways I could just buy a new PSU first.

cerebrum-diagnostics-20221019-1936.zip

[JorgeB]

If you used new cables it could be a bad disk, but PSU is also a possibility, try again after replacing which ever is more convenient to you first.

[kysriel]

I connected the disk in question to the PSU of my desktop PC (totally separate power connection). Still the same occured during parity build. What I noticed was, that at some point CPU load went to 100% on both cores and I wouldn't see any updates on the Main window. UI was still responsive. After the load dropped again, then I got the errors. Could  this be a load issue with the CPU? Currently I'm trying to get a cheap i5-2400 and 8GB ram for a small upograde.

 

Intel® Celeron® CPU G1620 @ 2.70GHz

ASUSTeK COMPUTER INC. P8H77-I , Version Rev X.0x

4GB RAM

cerebrum-diagnostics-20221021-0911.zip

[JorgeB]

57 minutes ago, kysriel said:

Could  this be a load issue with the CPU?

Don't think probably just a failing disk.

[kysriel]

Thanks! Next I try another disk.

[kysriel]

I got a new 3tb wd red and still face the same issue. Drive fails after approx 12% parity build with 1024 errors. Could it be the mainboard?

cerebrum-diagnostics-20221024-0959.zip

Edited October 24, 2022 by kysriel

[JorgeB]

First set the SATA controller to AHCI, it's set to IDE, then try again.

[kysriel]

Thank you so much! That was it. Parity is up again! I think the setting may have dropped because the MB battery died.