Pretty much the topic. I'm looking to move from TrueNAS Scale by removing a few of my disks and putting my array in a degraded state, using those disks to populate the Unraid array, and start moving data over.

 

Unfortunately, when I run a

zpool import storage -f

I get the following back:

This pool uses the following feature(s) not supported by this system:
        com.klarasystems:vdev_zaps_v2
cannot import 'storage': unsupported version or feature

 

I'm wondering if there's any recourse for this. I believe vdev_zaps_v2 was added to a more recent version of OpenZFS.

 

Thank you.

You would need to wait for the next major Unraid release, it will use openzfs 2.2, if you have two PCs you can import the pool with TrueNAS and transfer the data over SMB.

Thanks @JorgeB. I'll likely just wait then but am looking forward to it. When you say major release, would that be a point release, or Unraid 7?

 

Unfortunately I don't have a spare case and such right now to keep TrueNAS powered on with Unraid elsewhere, unless I were to temporarily Virtualize Unraid on TrueNAS Scale. Is that something people do/recommend, or pretty much a bad idea? I'd likely be doing a hybrid zfs approach within the Unraid array for bitrot detection and lz4 compression.

 

Thanks again.

2 minutes ago, adamfl said:

When you say major release, would that be a point release, or Unraid 7?

Unraid 6.13/7.0

 

2 minutes ago, adamfl said:

unless I were to temporarily Virtualize Unraid on TrueNAS Scale.

That's a possibility, but only if you can passthrough a controller with all pool members connected.

I can passthrough with my HBAs, but I think the trick would be only passing through the drives I'm going to offline and degrade from the current array. Thanks again!