Replaced Disks Now Unmountable: No file system Error

[steenbag]

Hi, several weeks ago I was having issues with high error rates and SMART failures on one of my data drives, as well as my parity drive. In order to fix the problem, I replaced them with two new HGST Ultrastar He10 8TB disks. The parity and data rebuilds went fine and I have been using the system since then. Suddenly again today I'm seeing errors on my parity disk, and the data drive is reporting as Unmountable: No file system. I've been trying to do an array shutdown to get into maintenance mode, but I'm not sure if the system is frozen, as it's been "stopping services" for about 20 minutes. I've attached the sys log for reference. Could this be a controller problem since it is the same disks that were replaced that now have the issues?

 

What can I do to try to recover the array? Any advice is welcome.

 

Thanks,

Andrew

tower-syslog-20200620-2204.zip

Edited June 20, 2020 by steenbag

[trurl]

Instead of syslog, we always prefer diagnostics, which contains syslog and many other things that give a more complete understanding of your configuration and situation.

 

Go to Tools - Diagnostics and attach the complete Diagnostics ZIP file to your NEXT post.

[steenbag]

Here is the diagnostic export.

 

Thanks,

Andrew

tower-diagnostics-20200620-2027.zip

[JorgeB]

Check/replace cables on the parity disk and post new diags.

[steenbag]

Decided to go ahead and play it safe and get new cables. Updated diagnostic is attached. The data and parity drives are attached to the hotswap bays in my Corsair 800D; is it possible that the backplane in this is failing? It's pretty old.

 

Thanks!

tower-diagnostics-20200626-1822.zip

Edited June 26, 2020 by steenbag

[JorgeB]

No more errors on parity, at least so far, now check filesystem on disk2, after it's fixed and if data looks correct you can then rebuild on top.