[Discuss] rsnapshot vs. rdiff-backup

[John Abreau]

A limitation of btrfs is that the snapshots are internal to the filesystem.
Kind of makes it hard to put the snapshots on a separate machine.


On Thu, Dec 5, 2013 at 9:47 AM, Edward Ned Harvey (blu)
<blu at nedharvey.com>wrote:

> > From: discuss-bounces+blu=nedharvey.com at blu.org [mailto:discuss-
> > bounces+blu=nedharvey.com at blu.org] On Behalf Of Mike Small
> >
> > Does btrfs fit in here somewhere?
>
> Yes.  When you create a btrfs or zfs snapshot, and send incremental to the
> destination system, that is perfectly analogous to rsnapshot sending the
> incremental, except that btrfs and zfs will be much more efficient in terms
> of time & space.
>
> Since rsnapshot is linux/unix only (requires hard links on destination) it
> will eventually suffer a large percentage obsolescence by btrfs.  But for
> now, btrfs isn't commonly enough deployed, commonly enough supported...  So
> rsnapshot still has its place.
>
> rdiff-backup has a niche in cross-platform compatibility.  It makes an
> effort to understand and intelligently translate the various implementation
> details between different systems.  For example, different supported
> character sets supported by EXT and NTFS, for example, a different concept
> of permission bits and ACL's on different platforms.
>
> That being said, I'm officially the rdiff-backup maintainer, and I'm not
> doing much maintenance.  With the introduction of so many new different
> filesystems and different features and concepts on each one, it becomes
> difficult to support interchangeability between all of them.  I'm not
> saying it can't be done; I'm only saying it's work intensive.
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>



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John Abreau / Executive Director, Boston Linux & Unix
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