Hello guys,

 

I need help to recover my disk. Hopefully my data are not lost.

 

I had 4 disks in my Unraid PC with no parity:

2 x spin disks on the array called Disk 1 and 3 (btrfs).

1 x SSD Pool device called Home (zfs before)

1 x SSD Pool device called Temp-cache (btrfs)

 

I wanted to add 3 more devices:

1 x spin as Disk 2

1 x SSD as another temp disk for parity device for one of the SSD Pool (for later on for Unraid 7)

1 x SSD as a normal disk.

 

I have put all the disks in and assigned them without New Config. Probably a mistake here. But I have added one of the disk in my Home Pool (mistake here as well), one as Disk 2 and another as Temp-cache.

 

I then clicked on start and found out the 1st Home disk was in the list of disks to reformat (so 4 disks to reformat instead of the 3 new ones). So I have stopped the operation imediatly and restarted the PC. Unfortunately it wouldn't start as the WebGUI wouldn't come up. So I have remove all the disk except Disk 1 and 2. I was then able to get back to the WebGUI and went to New Config to try to fix it. Afterward, I couldn't see any data in the user's home in that Home device after. I must say that there is a smart error in that Home disk which I was hoping to sort out a bit later on.

 

Is it a problem which can be fixed? Would I be able to recover the shares in my Home disk?

I have forgotten to download the diagnostic file before rebooting. But I have done so after rebooting with the present errors.

 

kingfisher20-diagnostics-20241030-2257.zip

 

Edited October 31, 20241 yr by Yannoviche
More info

Please post the diagnostics and the output from

zpool import

 

Hi @JorgeB,

 

The diagnostic was already attached, but at the wrong place in my post. I have put it at the end. 

 

The output of zpool import gives me 'no pools available to import' even after running it in root / and usr/sbin.

I am new to linux so if you give me a bit more info on how to run it, I will run it in the right location.

 

28 minutes ago, Yannoviche said:

The output of zpool import gives me 'no pools available to import'

And if I understood correctly the unmountable pool was zfs?

 

Also post the output from:

 

blkid /dev/sdd

 

I get :

/dev/sdd: PTUUID="f4646496-fdbb-4630-a5a5-535477385f67" PTTYPE="gpt"

 

Yeah I believe it is zfs. I have set it up a while ago and didn't think about it would failed. So I didn't memorized the settings. But I think it is zfs.

Edited October 31, 20241 yr by Yannoviche

And the output from

blkid /dev/sdd1

 

This one gives:

 

/dev/sdd1: UUID="2b75dc15-747b-44f9-a1e7-d92135696059" BLOCK_SIZE="512" TYPE="xfs" PARTUUID="061de452-0e11-49e3-aabd-c5e6713e5fed"

Apparently it's XFS, post the output from:

 

xfs_repair -v /dev/nvme0n1p1

 

The faulty drive is not a nvme drive it is a samsung evo ssd.

Should I still run the command? 

 

The nvme is btrfs.

Here is a picture.

 

 

After tinkering around I have been able to resolve it.

 

After reading the Unraid Docs, I thought the data were not lost. But I just couldn't remember if the drive system was xfs or zfs. I plugged it in my Windows PC and used DiskInternals Linux Reader to check (and try to recover the files) on the drive and I was able to find out that the file system is xfs and that the shares are still in the drive.

 

So I have decided to use the Nerdtools ddrescue because I had a free version of DiskInternals Linux Reader which didn't allow me to use the software the way I wanted to. But upon plugging in the drive back in my Unraid server, the drive appeared as unmounted. So I mounted it back to its original position. And the problem was resolved.

I'm sorry, I replied a couple of days ago, but for some reason looks like it failed.

 

On 10/31/2024 at 7:38 PM, Yannoviche said:

Should I still run the command? 

No, my mistake, the issue was that the pool was xfs but set to two slots, you just needed to set the pool slots back to 1 and it should work.

Ah OK. It was that simple? 

I should have know better. Thank you for the solution @JorgeB.