mkfs.btrfs
is used to create an btrfs filesystem (usually in a disk partition, or an array
of disk partitions).
device
is the special file corresponding to the device (e.g /dev/sdXX ).
If multiple devices are specified, btrfs is created
spanning across the specified devices.
OPTIONS
-A, --alloc-start offset
Specify the offset from the start of the device to start the btrfs filesystem. The default value is zero, or the start of the device.
-b, --byte-count size
Specify the size of the resultant filesystem. If this option is not used,
mkfs.btrfs uses all the available storage for the filesystem.
-d, --data type
Specify how the data must be spanned across the devices specified. Valid
values are raid0, raid1, raid10 or single.
-l, --leafsize size
Specify the leaf size, the least data item in which btrfs stores data. The
default value is the page size.
-L, --label name
Specify a label for the filesystem.
-m, --metadata profile
Specify how metadata must be spanned across the devices specified. Valid
values are raid0, raid1, raid10 or single.
-n, --nodesize size
Specify the nodesize. By default the value is set to the pagesize.
-s, --sectorsize size
Specify the sectorsize, the minimum block allocation.
-V, --version
Print the mkfs.btrfs version and exit.
AVAILABILITY
mkfs.btrfs
is part of btrfs-progs. Btrfs is currently under heavy development,
and not suitable for any uses other than benchmarking and review.
Please refer to the btrfs wiki
http://btrfs.wiki.kernel.org for further details.