@technotim I have not used #ZVol #ZFS_volume, or iSCSI for that matter, yet. Learned, perhaps again, that for a #snapshot on a #ZFS volume, need to have free space of the same size as amount of currently "referenced" data. #noteToSelf

(I was going to ask why "zfs send | zfs recv" did not work, as I use myself that often. Mitch H's comment (on Youtube, https://www.youtube.com/watch?v=Uzk6Janio0g&lc=UgxaSmibJJtf_075cF54AaABAg.9ksHAkb6VVj9ksHiEL29G4) reminded me that that was due to lack of snapshot. D'oh!)