On Thu, 23 May 2013, Robin Humble <rjh+luv@cita.utoronto.ca> wrote:
nothing clever, just manually. overly manually. every week or so I power on the backup box and run some rsyncs. it'd be possible to automate it (script that runs on power-up) but I haven't bothered.
I actually kinda like a >>1day gap between backups as it gives me a window to retrieve files that I deleted by mistake. a fraction of a day is a bit short to realise that a file is gone and to look for it in the backups.
http://etbe.coker.com.au/2012/12/17/using-btrfs/ I'm currently using BTRFS snapshots for that sort of thing. On some of my systems I have 100 snapshots stored from 15 minute intervals and another 50 or so stored from daily intervals. The 15 minute intervals capture the most likely possibilities for creating and accidentally deleting a file. The daily once cover more long-term mistakes. To cover hardware failure or significant sysadmin mistakes I make backups to USB attached SATA disks.
incremental backups would work better, but so far I've been too lazy to work out a way to filter out fewGB tv shows that I've watched and deleted and don't want in any incrementals.
On a BTRFS or ZFS system you would use a different subvolume/filesystem for the TV shows which doesn't get the snapshot backups. -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/