[e12e]

> Fortunately, btrfs is really good at backups.

For backing up to another file system? How so? Is there something like "zfs send" or even "xfsdump"?

Honest question - I haven't look that closely at btrfs.

[Vogtinator]

Yes, "btrfs send" and "receive" exist for that purpose.

[chungy]

Mind that it doesn't work quite so well as ZFS: btrfs send/receive doesn't produce an identical file system as the source. ctimes aren't preserved, some attributes, and depending on mount options, ACLs and xattrs can vanish too.