Should I upgrade ZFS pool?

Apps and Virtualization
1

Every since I upgraded to Cobia (now on Dragonfish), I’ve been getting a message/notice to upgrade the pool.

What are the possible drawbacks to doing so? And what would be the real benefit?

Can I just stay on this type of ZFS pool for now?

New ZFS version or feature flags are available for pool ‘Pool1’. Upgrading pools is a one-time process that can prevent rolling the system back to an earlier TrueNAS version. It is recommended to read the TrueNAS release notes and confirm you need the new ZFS feature flags before upgrading a pool.

2024-08-04 03:25:55 (America/Chicago)

2

You can choose the Cobia boot pool and you can read you pool fine. If you upgrade the pool, previous versions may not be able to read the pool. If you don’t require any of the new feature flags, stay on the current version you have.

2 Likes
3

Firstly, do not upgrade your boot pool. (This would require cli)

If you are never going back to Core 13.0, and you’re happy with Cobia and Dragonfish.

Then go ahead and update your data pool. Which will enable block cloning. Which is good :slight_smile:

Cobia and Dragonfish use the same pool
features.

3 Likes
4

I upgraded to 25.04.0 version and got this information too. How do i exactly do pool upgrading ?

5

Been a while, but if I remember correctly - but in the Storage page where it lists your pools, there’ll be an ‘upgrade’ button. You’d also likely get alerts in… your alerts that a pool upgrade is available.

6

Thats what i thought, since there was link to storage page, but no upgrade buttons or such there.

Is there somewhere some kind of ZFS version info i could check to see if this is just a false alarm ?

EDIT:

srcversion:     F0AE1403D62D3DB795DFFCB
vermagic:       6.12.15-production+truenas SMP preempt mod_unload modversions

What was it in 24.10.2.1 ?