Feb 18, 2025 · Check the ZFS pool version from the TrueNAS Shell with zpool get version {poolname}. A version value of - means the ZFS pool is version 5000 (also known as Feature …

Mar 19, 2022 · New ZFS version or feature flags are available for pool Volume. Upgrading pools is a one-time process that can prevent rolling the system back to an earlier TrueNAS version.

Jul 26, 2022 · New ZFS version or feature flags are available for pool ssd_mirror. Upgrading pools is a one-time process that can prevent rolling the system back to an earlier TrueNAS version.

Oct 20, 2025 · The pool must be upgraded to a ZFS version with the device_removal feature flag. The system shows the Upgrade button after upgrading TrueNAS when new ZFS feature flags …

Feb 6, 2025 · A storage pool with the latest feature flags cannot import into another operating system that does not support those feature flags. Upgrading a ZFS pool is optional. Do not …

Nov 30, 2022 · Dear All, I've created my first pool as raidz2 using TrueNAS CORE 13.0. I'd like to have your opinion on the pool settings considering that I will be using the server as home NAS …

Feb 2, 2022 · My server is at TrueNAS-12.0-U8. How to find out what version the ZFS is on? How to update/upgrade the ZFS? Thanks.

Feb 9, 2024 · Somewhat similarly my bootup is stuck at ‘ZFS: Loaded module v2.2.2-1, ZFS pool version 5000, ZFS files on version 5’. I’ve tried new installations via .iso of Scale 22.10, 23.10, …

Dec 18, 2022 · New ZFS version or feature flags are available for pool (s) Archive15TB. Upgrading pools is a one-time process that can prevent rolling the system back to an earlier …

Jan 25, 2018 · 2.5.1. Caveats ¶ Be aware of these caveats before attempting an upgrade to 11.1: Warning: upgrading the ZFS pool can make it impossible to go back to a previous version. For …