FM / features

/sys/fs/btrfs/features

Name	Size	Mode	Actions
big_metadata	4096	0444	edit dl rm
compress_lzo	4096	0444	edit dl rm
compress_zstd	4096	0444	edit dl rm
default_subvol	4096	0444	edit dl rm
extended_iref	4096	0444	edit dl rm
free_space_tree	4096	0444	edit dl rm
metadata_uuid	4096	0444	edit dl rm
mixed_backref	4096	0444	edit dl rm
mixed_groups	4096	0444	edit dl rm
no_holes	4096	0444	edit dl rm
raid1c34	4096	0444	edit dl rm
raid56	4096	0444	edit dl rm
rmdir_subvol	4096	0444	edit dl rm
send_stream_version	4096	0444	edit dl rm
skinny_metadata	4096	0444	edit dl rm
supported_checksums	4096	0444	edit dl rm
supported_rescue_options	4096	0444	edit dl rm
supported_sectorsizes	4096	0444	edit dl rm
verity	4096	0444	edit dl rm

Edit: /sys/fs/btrfs/features/raid1c34 (4096B)

cmd: