App pool migrate to bigger drive

Hi everyone. Running on Scale 24.10 and due to the unreliability errors on the Apps pool I would like to migrate to a new drive. I have searched everywhere but still haven’t found the solution how to do it properly. There was one promising solution:

  1. Navigate to Apps
  2. Stop all applications
  3. Click the Settings dropdown (second option from the upper right) and select “Choose Pool”
  4. Select a new pool from the dropdown list, and hit “Choose”
  5. TrueNAS will prompt you to confirm if you would like to migrate the data. If you chose to, it will now replicate the dataset and update the app settings automatically.

but it doesn’t prompt me if I want to migrate the apps pool.

How can I do app pool migration?

Having the same problem, and found this in the documentation:
Back up and restore functionality as well as migration of the ix-apps dataset from one apps pool to another are not currently supported by the TrueNAS interface. Support for these features is planned for a future TrueNAS release version.

/docs/truenasapps/#understanding-app-storage-volumes

just thinking if I could do simple zfs cloning of the apps pool disk to new disk using another linux machine. This means I have to switch off Truenas and then make the cloning. Would this work?

The apps are on their own pool? Easy: install the new drive, replace the old drive with the new drive (in the pool status page), remove the old drive. Done. No need to stop anything or migrate any data; the drive replacement handles it all transparently to the apps.

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