Zones was the logical conclusion to FreeBSD jail work. They added the full features jails now has finished. Each zone getting its own IP stack for instance. Jai

Zones was the logical conclusion to FreeBSD jail work. They added the full features jails now has finished. Each zone getting its own IP stack for instance. Jails didn't have that in the beginning. It was written by one guy to simply offer a basic but secure container for running multiple web servers in isolation from the host. Had he had the resources of sun Microsystems I'm sure he would have had all the features zones had from the start. But one man can only do so much with finite resources. And the main design goal was security and isolation. Which was accomplished. Separate network stacks was added later. I'm glad to hear your using it. I really can't imagine using anything else. Open source or commercial. Nothing is as compelling or reliable and easy to use. Me personally, i am forever grateful for Sun open sourcing it. I remember pre zfs days, with volume managers, and how hard it was to grow a ufs/ffs anything, just an absolute nightmare. And backups? Ugh. Tapes. Hoping every bit was copied, but never really knowing for sure. Just ugh. The pain. I've heard bcachefs talked about to. And as you originally stated I think these folks writing btrfs and bcachefs are talented and are doing the best they can but again FS's are hard. Look at all the garbage we've been stuck with from all the major commercial vendors until ZFS. Everything Microsoft puked up, or Apple, even the major UNIX vendors sucked at making file systems and volume management. Veritas? I'd rather stab my eyes with soldering irons than use any of that stuff ever again. Seriously ZFS compared to all of them is night and day. I'll never be able to thank the developers enough for helping me out of the pit of filesystem and volume management hell. I'll be interested to see how bcachefs ends up. But mostly I think everyone will be trying to play catch up to ZFS and more than likely doing it poorly. But I applaud their efforts to try! Thanks for the links btw, I always enjoy reading up on various tech.