Craig Sanders <cas@taz.net.au> wrote:
IMO, backuppc and zfs (or btrfs) are not a good mix.
admittedly, i don't like backuppc much (my personal experiences with it have been pretty bad), but that's just my subjective preference.
the real problem is that backuppc is creating squillions of hard links in order to retain a backup history - which made sense in the days before filesystem (btrfs, zfs) or volume level (lvm) snapshots were available. in other words, it's solving a problem that isn't actually a problem with these filesystems.
Nowadays, I am in the habit of running git init in any directory in which I edit files and therefore wish to maintain a history. Thereafter, I simply start committing changes. A backup then simply comprises a copy of the directory (with its .git subdirectory included). Obnam is a relatively new backup tool that looks interesting. Like a file system, though, I would wait for new backup software to mature before entrusting data to it.