Expand data drive on NextCloud VM script install


I installed NextCloud onto a Ubuntu 20.04.3 LTS Hyper-V VM using the VM script, and all has been fine. Recently though, the data drive filled up to 100%, and from my experience with NextCloud in the past, things completely break when that happens… I am getting an internal server error when trying to access the webpage.

Anyways, I tried expanding the data drive, and I am not having any luck. What I did was edit the VHD and doubled the storage, and now I’m trying to expand the partition so NextCloud can use the space. It seems that the VM script sets up a zfs pool for the data drive, which is interesting because it is only one drive. Not sure I understand that logic.

Here is what I am seeing:

It looks like the storage is recognized under EXPANDSZ, but I’m not super familiar with zfs in the terminal. Has anyone else done this before?