Hi,

I have Unraid since a few months and now I'm facing my first big problem.

Everything happened on Saturday: at the moment I have an array of 4 disks+Parity with a load factor of 89%. Suddenly on Saturday afternoon I saw my load factor from 89% down to 80% and just a few mis later I've discovered that a huge amount of data from disk3 are.....disappeared.... infact from around 9Tb of data in the DIsk4 now I see from the dashboard only 4,55Tb

no error message or SMART warning.

 

What should I do or what can I do? I suppose that if I will replace the DIsk3 the parity will rebuild only 4,55 not the entire disk I suppose, it is like the files have been deleted, but not by me.

 

COuld be also a corruption of XFS?

 

I appreciate every idea

Thank you

Attach Diagnostics to your NEXT post in this thread. 

Here we are,

Please note that at the moment I removed Disk 3 and Excledued from the Global Share Setting option

lybra-diagnostics-20240429-1121.zip

3 hours ago, Lybra85 said:

removed Disk 3

Emulated disk3 is mounted, no sign of xfs corruption. Removing it probably doesn't help anything. Made things more complicated actually.

 

5 hours ago, Lybra85 said:

replace the DIsk3 the parity will rebuild only 4,55 not the entire disk

It will rebuild the entire disk based on the contents of the emulated disk, which only has 4+ TB of data.

 

5 hours ago, Lybra85 said:

the files have been deleted

Or moved to another disk maybe?

5 hours ago, Lybra85 said:

it is like the files have been deleted, but not by me

Some app? The 'arr containers move things if configured to do so.

 

Someone else that has access? Have you put your server on the internet?

58 minutes ago, trurl said:

 

Or moved to another disk maybe?

As said.....the load counter shifted from 89% down to 80% ......files have not been moved but deleted sadly

 

 

Regarding access I am the only owner, server Is online and I use remote with a VPN tunnel but I think an hacking Attack Is very difficult......only One folder in One disk has bene removed, they could have donne way more damages....

1 hour ago, trurl said:

Some app? The 'arr containers move things if configured to do so.

 

Someone else that has access? Have you put your server on the internet?

Maybe Plex?

But why.....

 

In any case, my idea now Is replace the Disk3 with a new disk, let Parity Rebuild and the trying ti recover the files from the "old" disk with some software.

 

The less I touch the more I should be able to recover, correct?