The Good Enough File System, originally developed for 9front, is being ported to OpenBSD.
For those who haven’t watched my talk, GEFS is a new, crash-safe, snapshotting, copy on write FS that I wrote for 9front, and which I am in the process of moving to OpenBSD. The file system is described in full here.
↫ Ori Bernstein
One of OpenBSD’s shortcomings is its rather archaic filesystem, so any work on something more modern and especially more performant is quite welcome. While any process of replacing FFS is going to be a long one, even having GEFS as an option could be a great addition to OpenBSD.
One of the big problems of openBSD was that it was recommended everywhere to use softdep in /etc/fstab for some improvement in performance. At the end this makes the system more unstable, with data losses over the time (there is a good reason for not having it in the default setup). Now softdep is not an option anymore, and the stability of OpenBSD FFS is way better now.
The lack of features and i/o performance is still there (less perceivable with nvme storage) . A new and modern FS is absolutely welcome. There was also some effort to bring Hammer, but losing some momentum.
Is there a newer repo than this for Hammer on OpenBSD? It has not seen any activity since 2025.
https://github.com/kusumi/openbsd_hammer2
I guess no. It looks like the author has other interests like fuse-hammer.