SOLVED Rebuild pool from drives possible? because upload configuration failed to bring the pool online

[titust1]

Hi, first of all, don't blame me for risking my data because the data is safely backed up.
I had a Truenas Scale installed on one SSD boot disk, it was fully functional, it had and LSI HBA (IT mode) and 3 x HDDs.
I've saved the config db and password. Recently the partition table of my boot SSD got corrupted somehow.
So on the same PC I installed Truenas Scale as a Proxmox VM and passed through the HBA to the new Truenas VM. The Disks menu lists correctly my 3 HDDs which are part of my pool. I'm doing this because I want to change from a physical to a virtualized Truenas installation.
I uploaded the saved config db, my password changed as before, and in the GUI the pool is there, but it's offline for some reason that I ignore.
This is for sure due to the HW change, although I though Truenas is using the disks SN not the linux sdx name...
zpool status only show the boot pool. I am pretty sure the 3 drives that are part of the pool are still pristine.
I don't how to display the status of an offline pool, to have more info about why it's offline. So I need help
- Is there a way I can rebuild the pool from the data stored on the drives?
- Or can I import a pool that wasn't exported, for instance because the server died, by using using zpool import -f
- Is there a solution here? In fact this is a Truenas boot disk failure recovery exercise. I shouldn't be the first one to have it.

 

[danb35]

What's the output of zpool import?

 

[titust1]

root@diskstation[~]# zpool import
pool: Z-Pool
id: 9092168430889232775
state: UNAVAIL
status: The pool was last accessed by another system.
action: The pool cannot be imported due to damaged devices or data.
see: https://openzfs.github.io/openzfs-docs/msg/ZFS-8000-EY
config:
Z-Pool UNAVAIL missing device
raidz1-0 ONLINE
221e12ae-18cc-4ba9-b8bb-dc900a78a185 ONLINE
1613cb3c-b16b-400c-8522-cfd16ad3a679 ONLINE
7ec5cb4b-f45d-404d-b353-983ec843df05 ONLINE
logs
a33cd9e5-6212-463d-8826-dc4e0dff2df6 UNAVAIL

Yes, I forgot there was a LOG assigned to the pool that I don't have anymore, it was on a partition of the boot disk.
Is it possible to get rid of it from the pool? then I guess the pool will go online

 

[titust1]

What's the output of zpool import?

I tried
zpool remove Z-Pool a33cd9e5-6212-463d-8826-dc4e0dff2df6
but it says Z-Pool no such pool or device

 

[titust1]

Hi guys,
I managed to fix the issue myself. Due to the fact that I wasn't scared to lose the data, I tried a few things and it worked:
1. In the GUI I exported/detached the pool without deleting the data and removing the shares.
2. I forced the import of my pool (Z-Pool)

Code:

zpool import -f -R /mnt/Z-Pool -m Z-Pool

-m allows a pool import when there is a missing log device. There was no error, but the pool didn't show up in the GUI
3. I removed the missing slog device from the pool

Code:

zpool remove Z-Pool a33cd9e5-6212-463d-8826-dc4e0dff2df6

There was no error, so I guess it was successful
4. I went again and uploaded the config file from tar, and after reboot Z-pool was there, healthy without a log device attached
So basically I fixed two issues, the missing log device and the fact that I changed the system