zfs-snapback

Small utility in Go to synchronize snapshots recursively from a source to a destination. Both source and destination can be a remote or local file system.

Usage

Note that

• the given FS should already be present on the destination.
• You need SSH to be set up either via ssh agent or keyfile, user/password will not work

Flags:

• --recursive or -r: synchronize file systems recursively and create missing file systems on the destination.
• --force or -f: revert file systems to the most recent snapshot before receiving the data (zfs recv -F).
• --progress or -p: display a progress bar for each snapshot transfer.
• --compression or -c: set the compression for SSH (yes/no).

Examples:

zfs-snapback root@source.tld:remote/zfs/fs/path local/fs/path
zfs-snapback one/local/fs another/local/fs
zfs-snapback local/fs/path root@your.tld:remote/zfs/fs/path
zfs-snapback root@source.tld:remote/zfs/fs/path root@destination.tld:zpool/backups/source.tld

What is not done (and will maybe come in the future)

• Testing
• Complete error handling
• Use zfs send -I instead of multiple calls to zfs send -i