Upgrade PVE 8 To 9 status zfs pool

You can safely ignore that. If you absolutely must do it, please wait until one year has passed since the PVE update before proceeding. (I hope you’ll forget about it by then.)

That change cannot be undone. If everything is currently working fine, there’s no need to make a change that can’t be reversed.

If you ever need to roll back to an older kernel in the future, you’ll likely regret making this change.

*On older kernels, pools that include new features cannot be mounted. Since the new features are irreversible, older kernels can no longer be used at
*A question I've seen many times
 
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