Checking the bus factor:
Btrfs regulars:
- 1 from Meta
- 1 from Oracle
- 4 from SuSe
- 2 from WDC
bcachefs:
- Kent Overstreet
Btrfs regulars:
- 1 from Meta
- 1 from Oracle
- 4 from SuSe
- 2 from WDC
bcachefs:
- Kent Overstreet
* https://btrfs.readthedocs.io/en/latest/btrfs-man5.html#man-b...
What have they been doing for the last decade(+)?
Western Digital picked up this work last year and is slowly getting through the new design without the write hole, I think we'll see working raid 5/6 in the next year or two.
I've used RAID-Z1/2/3 at a couple of jobs: yes IOps is suck-y, but if it's for backups of other systems, or the central logging server, or network monitoring (Suricata, Snort), sometimes your priority is cheap/bulk.
I'm currently in the HPC space, and Lustre is a thing here, and it has tiered storage via policies: you can (e.g.) put your recent/hot data on NVMe, but older/colder bits on spinning rust on ZFS.
I doubt there'd be any real interest in a bastardized fork that only exists so the deep pocketed vendors can get away with code dump and run.