Can HFS+ formatted ZVOL be backed up by Time Machine?

[RobRehnmark]

I have a Raidz1 of three SSD disks with a ZVOL on it that I have formatted as HFS+.
I would like this HFS+ formatted volume to be backed up by Time Machine. To be clear, I do not need TM to use this disk to store backups.
I assumed it would be as it is "simply an HFS+ volume" to the system... doesn't seem quite that simple after all?

Any ideas on how to go about this?
I don't mind destroying the pool or anything, just want to get to a point where I have the automatic Time Machine backups working for the volume.

[RobRehnmark]

Or do I need to make a sparsebundle on the ZFS pool?
Would that be backed up by Time Machine?

[poolparty]

I’m not knowledgeable enough to help with that, but I wonder what it is you’ve tried to get the TM backup working, what you’ve expected to happen, and what actually happened?

I assume that your HFS+ volume is mounted, and that it shows up in Finder.
Does the TM preference pane show your volume as an eligible volume for backup? Or are you already past that?

[poolparty]

Please disregard my comment. I didn’t realize there’s already a new thread.