Hi I'm trying to use the new service jails but they don't seem to start at all

Is it only specific services that work with it?

Ohh I see, you have to actually enable the service as usual before too. I just assumed if you had <servicename>_svcj="YES" it would enable the service to run it in the jail

Anyone have experience lumping mixed sized disks together into a single large ZFS zpool (raidz2 of similar) ?

SponiX: Yeah. You just build the ZFS into partitions sized for the smallest disk.

It wastes a little space but it works well.

Is there a better way, like grouping a handful to a dozen of the same sized disks as one like vdev, and then lumping the vdevs together from there?

My smallest disks are 3TB, and my largest are like 16-20TB

you could probably do that with ccd(4), but you wouldn't be able to boot from it, and i dislike that sort of complexity in my storage, personally

Yeah, I have a couple of 2TB NVME drives to do the OS/boot itself. These array(s) would be specifically for data/Media only

ivy: I didn't know this ccd existed. It might be helpful

I would rather do it all within ZFS, but mixing it with ccd could actually give me better solutions

afaik, diffrent sizes for root vdevs don't matter, but you don't have redundancy between those root vdevs, only inside a vdev (and only if it isn't just a single disk)