Btrfs-image
From btrfs Wiki
Makes a compressed image of a btrfs partition (zeroed data).
Usage
btrfs-image [-r] [-c <num>] [-t <num>] <source> <destination>
Description of parameters
- "-r": Restore a previously made image
- "-c": Level of compression from 0=none over 1=lowest zlib to 9=highest zlib
- "-t": Number of threads used 1 to 32 (defaults to number of cpus)
