On Sun, 23 Feb 2020 21:20:59 +1100 MJ <mafsys1...@gmail.com> wrote: > > I really don't see any benefit to it over FFS. Sure CoW is good but > really, for a pi? If the data's that important I would not be putting > it on a pi. > > The benefits of ZFS, like expandable volumes, no need for fstab, RAID > etc just to name a few, all seem lost to me on a Pi. If you use it, > you're wasting a lot of RAM on just its L2Arc. > > No, I'm not convinced of its usefulness on such a device, given FFS > is more than likely a lot faster (but more likely to lose your data, > statistically) > > I'm also fairly certain the rpi4 is not functional under NetBSD yet. > I may be wrong.
I see a lot of benefits to using ZFS here. It has transparent compression, hence improves I/O performance, since RPI USB is very slow the more you can compress files before writing them to storage the quicker it will be. Also, many people use USB flash and I suspect reliability is not as good compared to normal disks, hence ZFS checksumming is a real bonus.