On Fri, Dec 30, 2016 at 03:49:49PM +0100, Ole-Morten Duesund wrote:
> On 30/12/16 15:38, Andy Smith wrote:
> >Hi Andy,
> >
> >On Fri, Dec 30, 2016 at 02:07:56PM +0000, Andy Bennett wrote:
> >>Optimise for speed and ease of restoration: back up everything
> >
> >I think the constantly-changing files like log files will interact
> >very badly with BitFolk's backup system and result in the need to
> >purchase very large amounts of storage. Much as I would enjoy the
> >increase in sales of storage, I expect this strategy will only be
> >feasible with the "unlimited backup space" type providers.
> >Crashplan, etc.
> >
> >Which service do you use to back up your VPS(es) in this way? Maybe
> >you could add to the wiki article…
>
> I back up everything, I use btrbk and btrfs-snapshots to a server at
> home. It does incremental backups on a block-basis and is insanely
> fast.
>
> I does require one to run btrfs both on the VM and the
> backup-destination though (actually, the destination could be
> btrfs-images, but I've never tried that). And a certain organization
> of btrfs-subvolumes at the source.
You can store the send streams as files. If you're using
incrementals with btrfs send -p, you need to keep the full chain of
incrementals from the last full. In that respect, it's much like a
traditional three-level tape schedule.
Then the restore process is just btrfs receive with each send
stream in turn, from an initial full send, following a chain of
incrementals to the one you want to restore. It does require a full
restore, though -- you can't just pick out individual files.
> It's a bit hard to get going the first time, but it is VERY nice
> once it's up and running.
It's got its moments, certainly. :)
Hugo.
--
Hugo Mills | A clear conscience. Where did you get this taste for
hugo@... carfax.org.uk | luxuries, Bernard?
http://carfax.org.uk/ | Sir Humphrey
PGP: E2AB1DE4 | Yes, Prime Minister
