I'm wondering if someone can help me out. I rebooted my unraid array after upgrading and my disk 3 came up as unmountable. I made the mistake of saying that I wanted to format that disk, which I thought would cause the array to rebuild what I had missing. It did not, instead what it said was that the drive was empty. I then took the array offline unassigned disk 3, reassigned it, then started it. It asked if I wanted to write to drive 3 based on the parity and I said yes. I waited 8 hours and when it finished I could see that I had 8 million writes to disk 3 but yet the data is still missing.

 

Is there a way to get that data back based on the parity disk? I can tell that during the rewrite, that I only had 30,000 writes to the partity, disk 1 and disk 2 each while the disk 3 had the 8 million number. I'm attaching my diagnostics below.

 

Thanks!

Stephen

 

alaska-diagnostics-20190401-0021.zip

Formatting deletes everything in the disk updates parity, so rebuilding it will never help, your only option is to use a file system recovery tool, UFS Explorer has been used before successfully by other users.

Thanks Johnnie, I was kind of afraid of that. Would UFS Explorer standard edition work for me? I'm not entirely sure how I will do this- I suspect I will have to pull out the drive into an external case and then search it using UFS on my laptop. 

4 hours ago, coherent said:

Would UFS Explorer standard edition work for me?

Yes