Re: incremental full file backups to smaller mediums possible?

[Christoph Anton Mitterer <calestyo@scientia.net>]

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On Thu, 2015-04-09 at 16:33 +0000, Hugo Mills wrote: 
>    btrfs sub find-new might be more helpful to you here. That will
> give you the list of changed files; then just feed that list to your
> existing bin-packing algorithm for working out what goes on which
> disks, and you're done.

hmm that sounds interesting, but
a) it lacks much documentation (how does that with the generations work?
when is there a new generation? what, if the generation overflows?)
b) it seems to only show me new files, but not files that have been
moved, or removed, or when properties have changed.
c) it seems to work only for one subvolume?

Cheers,
Chris.

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