Lost partion tables - Messed up

[Faster]

Well I did something stupid. While installing windows server I had removed partitions from my truenas drives. I was thinking Im erasing the boot disk I was going to install the windows server. Before I knew it I managed to delete at least 3 or 4 drives that way. They were all connected to a PERC controller which threw me off. While I have most of the backups and disconnected some drives hosing my VM and trueNAS itself It would be nice to see if I can recover the drives.

One has one SSD with my ix-… apps partition which were backed up to a ZFS volume that got blown away as well. Is there any way to get those to load drives back in TrueNas?

Two had simple 4 TB volume for backups of other home pcs and Macs

Thrid had ZFS with 3 drives in RAID configuration.

I have found a post from someone else that did the same thing and they were able to recover somehow.

Here is how they look like in TN. ( I can see them exported with the Names still there )

Here is the screen where I nuked them. I have not done any operations on those drives using any software. Hoping someone has some information on how to go from here that allows to bring the data back.

[ericloewe]

Shouldn’t be too hard. Just have to recreate the partition table with the correct offsets - but it is something TrueNAS will not fix for you automatically.

Someone will probably come along soon with the correct description of the partition layout…

[Stux]

Maybe if you run parted over an affected device it will spot the corruption and offer to restore the gpt backup from the end of the disk

[ericloewe]

Worth a shot, but I’d expect all the copies to have been wiped.

[winnielinnie]

There’s also the testdisk utility. However, I’m not sure if it works with recent ZFS partitions. (There are mixed results, and it depends how much was removed by the Windows software.)

[Faster]

So it turns out that testdisk won’t find the lost partitions.

Would anyone have any other ideas to try.