"Interesting" problem here that has me a bit panicked. 

 

Very small array running on Version: 6.8.3 with just 3 drives - parity, data, and cache. 

Pulled up the GUI yesterday and it said that disk 1 had failed. Popped it out, replaced it with an identical (blank) disk and waited a few hours for the data rebuild to complete. Went in this morning and my shares were gone and I can't find any of the files anymore(!). (Array shows 38gb used out of 2tb - am unsure if that represents simply files the array needs to operate or if my missing files are somehow included in that total)

 

Am I completely hosed? 

(I'm not a complete noob as I've been running another 30tb box for several years now-but never had an issue replacing a disk before like this, nor had an array this small)

 

30 minutes ago, rockytt said:

Array shows 38gb used out of 2tb

This would suggest the drive was formatted, please post the diagnostics, ideally before any reboot.

Here's what I've got  - thanks the help! (and I'm getting that sinking feeling...)

tower-diagnostics-20200702-1131.zip

Diags are after rebooting so we can't see what happened, but almost certainly the disk was formatted during or after the rebuild, does that ring a bell? There would be a warning like this one:

 

 

 

well that's disappointing - and certainly explains a lot - 

My memory says the new disk needed to be formatted when I installed it and I (of course) didn't read the whole error message.

Sigh - 

 

Thanks for your help, even if it's not the answer I was hoping for - much appreciated

Do you still have the "failed" disk as it was when removed?

sadly no - I was so (over) confident in the data rebuild I thought was happening, I decided to run some tests to see if it had indeed failed.

 

Oh so many (painful) lessons learned in the last 24 hours...

9 hours ago, rockytt said:

I decided to run some tests to see if it had indeed failed.

What tests.   Depending on what you actually did it may still be possible to get something off the drive.