Rob Hasselbaum wrote at about 11:37:49 -0500 on Friday, February 10, 2012:
 > On Fri, Feb 10, 2012 at 10:46 AM, Les Mikesell <lesmikesell AT gmail DOT 
 > com>wrote:
 > 
 > > I don't know anything about tarsnap but it looks like it has its own way
 > > of tracking incremental changes.  Is there some reason you can't just run
 > > it independently from the original source?    Someone has mentioned a fuse
 > > filesystem that works on top of the backuppc archive on the list before -
 > > that might work if you have to use backuppc's copy.
 > >
 > >
 > One of the things I like about Tarsnap compared to other off-site backup
 > services is that it's nicely scriptable so I can manage what gets backed up
 > and when from one central server just like BackupPC itself. By the same
 > token, though, Tarsnap is not very convenient to run from the individual
 > PCs because some of them are Windows and I'd need to deploy scripts to run
 > it periodically through Cygwin.
 > 
 > I'll take a look at the FUSE filesystem. Thanks for the tip! I'm guessing,
 > though, that it won't be any more efficient than just exploding the archive
 > to a /tmp directory and having Tarsnap walk through it there.

Be aware that the BackupPC FUSE filesystem while incredibly useful and
slick, is also quite slow since the directories and file attributes
need to be read from the compressed attrib files.

It's great for browsing backups manually using *nix tools and it's
good for short scripts. It likely will be unbearably slow for tarring
an entire backup filesystem. It still would be instructive to try it
and see how much of a performance penalty it introduces.

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