Application(s) have failed to start:
Failed to umount 'lifeng/ix-apps': [EFAULT] Failed to umount dataset: Dataset lifeng/ix-apps not found
i can not use application after i switch the new disk
To get some help here I recommend providing a lot more information, what version are you running? Please explain what you are trying to do more clearly, not sure what you mean by switching disk.
Do you still have the data on the previous disks?
If yes, reimport the pool and try to unmount the app data dest before remove the disk.
If not, you are probably stuck… and afaik a fresh install can resolve (or If you can wait, the fix should be available in 24.10.1)