Latest Version: https://forums.truenas.com/t/howto-rename-a-zfs-pool/130
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The basic process to rename a ZFS pool is to export it from the GUI, import it in the CLI with the new name, then export it again, and re-import it in the GUI.
I find I normally want to do this after creating a new pool (with perhaps a different set of disks/layout), replicating my old pool to the new pool, and then I want to rename the new pool to the same as the old pool, and then all the shares work correctly, and its fairly transparent. Mostly.
(tested with TrueNAS CORE 12U8-1)
So, firstly, you need to export your pool that you want to rename from the GUI. Note its name.
Before you do that, if your system-dataset is on the pool, its a good idea to move it back to a different pool, or perhaps the boot pool.
System -> System Dataset, then select the pool you want to host it, and save.
Once that's done,
Storage -> Pools, the click the cog to the right of the pool you want to rename and choose "Export/Disconnect"
DO NOT TICK "Destroy data on this pool?"
It is up to you if you delete the shares, etc, or have to re-configure them when you re-import the pool.
TICK "Confirm Export/Disconnect" then click EXPORT/DISCONNECT
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Once that is finished fire up a terminal and import the pool into the CLI with the new name.
(replace original_name and new_name, respectively)
You can check your handy work with
Then export the pool again
Then import it again in the GUI
Pools -> Add, import existing
Job Done.
You may need to reconfigure your shares etc.
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The basic process to rename a ZFS pool is to export it from the GUI, import it in the CLI with the new name, then export it again, and re-import it in the GUI.
I find I normally want to do this after creating a new pool (with perhaps a different set of disks/layout), replicating my old pool to the new pool, and then I want to rename the new pool to the same as the old pool, and then all the shares work correctly, and its fairly transparent. Mostly.
(tested with TrueNAS CORE 12U8-1)
So, firstly, you need to export your pool that you want to rename from the GUI. Note its name.
Before you do that, if your system-dataset is on the pool, its a good idea to move it back to a different pool, or perhaps the boot pool.
System -> System Dataset, then select the pool you want to host it, and save.
Once that's done,
Storage -> Pools, the click the cog to the right of the pool you want to rename and choose "Export/Disconnect"
DO NOT TICK "Destroy data on this pool?"
It is up to you if you delete the shares, etc, or have to re-configure them when you re-import the pool.
TICK "Confirm Export/Disconnect" then click EXPORT/DISCONNECT
...
Once that is finished fire up a terminal and import the pool into the CLI with the new name.
zpool import original_name new_name(replace original_name and new_name, respectively)
You can check your handy work with
zpool status new_nameThen export the pool again
zpool export new_nameThen import it again in the GUI
Pools -> Add, import existing
Job Done.
You may need to reconfigure your shares etc.
