I have it setup to share the space; I have a TM dataset (generic not AFP, Time Machine, or whatever). Then I have a SAMBA per-user Time Machine share on top of

I have it setup to share the space; I have a TM dataset (generic not AFP, Time Machine, or whatever). Then I have a SAMBA per-user Time Machine share on top of that. The first time the user connects from the Mac it creates a child dataset for that user with the relevant ACLs to keep them isolated. A quote forces each client to prune its history. The pool itself is 8x12TB Toshiba enterprise drives. I'll have to check what pool config I used but I did add multiple NVME SSDs for SLOG and ARC. Whichever one is the important one is actually mirrored across the NVME drives for redundancy while the other partition only exists on one NVME drive, which was mildly annoying to configure. I'm still not sure I made the "best" choices for the ZFS config - there are many knobs to turn.