I have a small app server that needs very little space, mostly for binaries as it uses the network for everything else. Nevertheless, that very little space is in the form of a handful of virtual machine disk images.

It makes no sense "checking out" relatively giant VM files from the array to a cache disk if those files are the norm, so I opted to change the storage for a small ZFS flash mirror instead so they can be worked with in-place.

The server was initially configured with an Unraid array, which I cannot get rid of. In the GUI, unless hidden files are, well… hidden, the Unraid array appears to be empty already but when I remove it from the system it tells me too many disks are missing or something like that as if there was something in the array it needs.

I took a few screenshots to help me illustrate my point:

I cannot log in via SSH to see if there are any ZFS snapshots or datasets (from the brief period the Unraid array was used for containers) because it's locked up, there is some error about sshd having too many open ports or listening in too many ports or something along those lines. Regardless, since everything was moved to the ZFS pool, I don't see why should there be anything lingering in the array at least from the ZFS standpoint.

Could you help me out with some pointers on how to remove the array, please?

This is Unraid 7.1.3, BTW.

Thanks!

If you want to remove the main array then make sure the number of slots is set to 0.

If that is not your issue then post your system's diagnostics zip file so we can see your setup.

Thanks but I figured it out,

I used the New Config tool, preserving the pool assignments. It was the scariest button I've had to click in quite a while but it paid off. The array was startable (and was started) right away. VMs are coming online as I type this.

Nevertheless, I do appreciate that you took time to help though. Thank you very much!

Edited July 20, 2025Jul 20 by vitaprimo
Added the receipt