Formatting
To format a new bcachefs filesystem use the subcommand
bcachefs format
, or mkfs.bcachefs
. All persistent
filesystem-wide options can be specified at format time. For an example
of a multi device filesystem with compression, encryption, replication
and writeback caching:
bcachefs format --compression=lz4 \ --encrypted \ --replicas=2 \ --label=ssd.ssd1 /dev/sda \ --label=ssd.ssd2 /dev/sdb \ --label=hdd.hdd1 /dev/sdc \ --label=hdd.hdd2 /dev/sdd \ --label=hdd.hdd3 /dev/sde \ --label=hdd.hdd4 /dev/sdf \ --foreground_target=ssd \ --promote_target=ssd \ --background_target=hdd