brik

RAID

root@brik:~# mkfs.btrfs -d raid1 -m raid1 \
  -L braid \
  /dev/sdc1 \
  /dev/sdd1 \
  /dev/sde1 \
  /dev/sdf1 \
> 
btrfs-progs v6.14
See https://btrfs.readthedocs.io for more information.

NOTE: several default settings have changed in version 5.15, please make sure
      this does not affect your deployments:
      - DUP for metadata (-m dup)
      - enabled no-holes (-O no-holes)
      - enabled free-space-tree (-R free-space-tree)

Label:              braid
UUID:               2e7d57f9-0a57-4541-8acc-2d1000e22a8e
Node size:          16384
Sector size:        4096	(CPU page size: 4096)
Filesystem size:    72.76TiB
Block group profiles:
  Data:             RAID1             1.00GiB
  Metadata:         RAID1             1.00GiB
  System:           RAID1             8.00MiB
SSD detected:       no
Zoned device:       no
Features:           extref, skinny-metadata, no-holes, free-space-tree
Checksum:           crc32c
Number of devices:  4
Devices:
   ID        SIZE  PATH     
    1    18.19TiB  /dev/sdc1
    2    18.19TiB  /dev/sdd1
    3    18.19TiB  /dev/sde1
    4    18.19TiB  /dev/sdf1

root@brik:~# cat /etc/fstab 
# <file system> <mount point> <type> <options> <dump> <pass>
UUID=a1689730-154d-4449-b8d4-70ac4d5f2969 / btrfs defaults 0 1
proc /proc proc defaults 0 0
UUID=2e7d57f9-0a57-4541-8acc-2d1000e22a8e /mnt/braid btrfs defaults,noatime,compress=zstd,nofail,x-systemd.device-timeout=30 0 0