Unmountable: Unsupported or no file system Problem

[Gary]

So I have had a number of unfortunate events happen over the past few days.  I had two parity drives fail within a very short time.  I bought a new drive and waited a few days for it to arrive.  I shut down, replaced one of the failed parity drives and then booted back up.  It turns out the drive was not working.  I suspected a backplane or cable issue so I replaced both.  When I booted the drive back up, I found my disk 1 was Unmountable.  I suspect I improperly shut it down while testing the backplane.  Well now I am left with one invalid parity drive that is rebuilding and an unmountable disk.storage-diagnostics-20230830-1950.zip  Am I out almost 16TB of data?  Suggestions?  Oh did I mention it was my Birthday? 

[itimpi]

Handling of unmountable drives is covered here in the online documentation accessible via the Manual link at the bottom of the Unraid GUI, and also every forum page has a DOCS link at the top and a the Documentation link at the bottom.