ZPool Not Importing One Drive Unavailable

[archiso]

Over a year ago my home server's boot drives failed and since then I haven't gotten to setting it back up or recovering that data (busy with school). I now finally have some time on my hands and was trying to import the zpool from the old server on a new computer. One of the four drives I had in the zpool seems to have failed, how can I recover the data from this pool? or is it gone?

 

 

$ sudo zpool import

pool: Storage
     id: 9852532683918131691
  state: FAULTED
status: The pool was last accessed by another system.
 action: The pool cannot be imported due to damaged devices or data.
	The pool may be active on another system, but can be imported using
	the '-f' flag.
   see: https://openzfs.github.io/openzfs-docs/msg/ZFS-8000-EY
 config:

	Storage                              	 FAULTED  corrupted data
	 raidz1-0                                DEGRADED
	   c0b73961-6484-4bba-937c-17b861467448  ONLINE
	   d9e047e6-efe4-492c-96c1-94912d1c824d  ONLINE
	   8c3fff5f-c9a8-40c8-8e09-fac69e7dff2c  UNAVAIL
	   299a799c-4d57-44c0-ab01-26a4b9699598  ONLINE

 

$ sudo zpool import -fF Storage

cannot import 'Storage': I/O error
	Destroy and re-create the pool from
	a backup source.

 

[Electronics Wizardy]

Do all the drives appear to the system?

 

I'd probably try making a image of all the drives, and importing from the images.

[archiso]

9 hours ago, Electronics Wizardy said:

Do all the drives appear to the system?

No idea why I didn't check this already. All drives appear, but not as they should. All the drives are 500gb and have a gpt partition table, except one of them is reporting 1.82TiB and seems to have been reformatted with a dos partition table as well as not reporting the correct model. From this I'm assuming that the drive has broken or been reformatted, or both.

Because this is still a raidz array, I should be able to get my data with one missing drive right? how would I go about this?

[WhitetailAni]

On 3/19/2024 at 6:23 AM, archiso said:

Because this is still a raidz array, I should be able to get my data with one missing drive right? how would I go about this?

Disclaimer: while I do use ZFS with Raid Z, I have not had to troubleshoot dead drives yet. This is probably a very bad idea and could result in data loss.

 

You could remove the weirdly formatted drive so ZFS thinks that it has failed, instead of just being in a weird state..? My guess is it's maybe trying to read from the drive and getting nothing, but it doesn't recognize that as a failure. Not sure if it would work or not. See disclaimer above.