[clug] Rsync Diffs

[Paul Harvey]

On 4 August 2015 at 14:31, Brett Worth <brettw at cray.com> wrote:
>
>
> On 04/08/15 14:25, Brett Worth wrote:
>
> If the delta between the two snapshots could be dumped then reapplied to the remote filesystem then it would work.  Is that possible?
>
>
> I have just looked at the man page.  Now I need to do some experimenting with "send -i ".
>
> (Can someone please summarise that man page?  It's pretty long. ;-) )

Not to discourage using those commands directly - I think it's
definitely worth playing with them so you know how it all works - but
if you're a ZFS user you should definitely check out sanoid's [1]
companion script, syncoid.

Whilst I made using btrfs send/receive sound pretty easy (and to be
fair, they are), there is a learning curve i.e. new concepts to
familiarize with and perhaps a few plumbing scripts you'd write for
yourself to overcome the rawness of these utilities in some places
(but they really aren't so scary once you get to know them).

So to reiterate, check out sanoid:

[1] https://github.com/jimsalterjrs/sanoid/