In the past, I've done my remote mirrors of my backuppc backups one
of two ways:

1.  Run tarCreate or whatever, and create giant tarballs of the
things I've backed up.  In the past, this has been totally
inappropriate for remote mirroring, because encrypting the file
would kill rsync's ability to save transfer time, and these files
can get pretty large.

2.  Try to mirror the whole backuppc setup; I've done that in the
past like so:
http://digitalkingdom.org/~rlpowell/hobbies/backups.html and am now
looking at doing it via individual files, but people tell me that
doesn't scale well.  This doesn't matter for me, but as it seems
clear to me that it would be nice for the backuppc community to have
a known way of solving this general problem, I'm trying to take that
issue seriously.

Here are a few other options I've thought of:

3.  A modification of #1, now that rsyncrypto exists, it should be
possible to efficiently rsync only the changed parts of encrypted
copies of files created with tarCreate.  I wouldn't trust it with
zipCreate, but tarCreate should work.

4.  One could sync the most recent backup for each host straight out
of the pc directory, and ignore the pool directory entirely.  That
is, rsync a copy of *the contents of*
/var/lib/backuppc/pc/[host]/[latest] for each host somewhere, along
with the backups file,
encrypt that with rsyncrypto or whatever, and sync that.
Theoretically, for the purposes of restores, backuppc shouldn't much
care that the pool is empty, it should only be looking at the pc
directories; am I right about that?

-Robin

-- 
Lojban Reason #17: http://en.wikipedia.org/wiki/Buffalo_buffalo
Proud Supporter of the Singularity Institute - http://singinst.org/
http://www.digitalkingdom.org/~rlpowell/ *** http://www.lojban.org/

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