Can't rebuild array after failure

[Richard Baguley]

Morning all, I am having an odd problem. I have an Unraid server running 6..10.3 with a 10-disk array filled with WDC_WD10 and WDC_WD12 drives. I had one drive failure, but the array kept working as it should. However, after I moved a few things around to try and accomodate a new drive, another one of teh drives seems to not be joining the array, and I can't restart it. The odd thing is that the drive is right there: unassigned devices can see it. 

 

Let me show you what I mean. First in the attachments is the list of drives from the main screen. 7 is the failed one, and 6 is the one I am having problems with.

 

 

 

When I use the drop-down for drive 6, no devices are listed

 

 

 

But if I look further down to Unassinged DEvices, I see that the drive ending in 83F is right there, and Unassinged Devices knows it is an array drive:

 

 

When I try and spin it up with the gray circle, it doesn't seem to respond. I also can't find a SMART report on this drive.

 

I suspect I may have had two drive failures, and the only thing I can do is to delete teh array then rebuild it with the working drives and recover what I can 

 

Any other ideas? 

 

[JorgeB]

Please post the diagnostics.

[Richard Baguley]

john-diagnostics-20221006-1028.zip

[JorgeB]

Read SMART Thresholds failed: scsi error medium or hardware error (serious)

Try swapping cables with a different disk but looks like it's a goner.

[Richard Baguley]

Ugh, thanks. I suspected as much, but I couldn't get into the SMART reports for that disk. 

 

Is there a recommended process for recovering from a 2-drive loss like this?

[JorgeB]

Disk7 looks healthy, if nothing was written to it after it got disabled it might be possible to re-enable to rebuild disk6, other option is doing a new config without disk6, or with a new disk6.