BackupPC-users

Re: [BackupPC-users] BackupPC Pool synchronization?

2013-03-06 11:54:17
Subject: Re: [BackupPC-users] BackupPC Pool synchronization?
From: Les Mikesell <lesmikesell AT gmail DOT com>
To: "General list for user discussion, questions and support" <backuppc-users AT lists.sourceforge DOT net>
Date: Wed, 6 Mar 2013 10:52:58 -0600
On Wed, Mar 6, 2013 at 10:14 AM, Timothy J Massey <tmassey AT obscorp DOT com> 
wrote:
>
> > I don't mean to bring up another "RTFM" moment, but I've searched
> > around, and I haven't found the location for enabling/disabling the
> > pooling.  The compression option I've found, but not pooling.
>
>
> There is no way of doing this.  If you don't want pooling, you don't want
> BackupPC.  BackupPC without pooling equals rsync (or tar or cp or...).
>
> What *exactly* are you trying to accomplish by turning off pooling?

There's a long thread here - the idea is to run backuppc (for its many
other features) with the archive on a zfs filesystem with block-level
dedup (and probably compression) enabled.  That should actually be
transparent to backuppc's hardlink dedup but it would be unnecessary
and redundant.   Turning off compression would allow dedup of matching
chunks within files where backuppc will store whole copies with slight
differences.  The real win is (may be?) getting the the more
intelligent zfs mirror rebuild for offsite swaps and the incremental
send/receive to update remote backups.

-- 
   Les Mikesell
     lesmikesell AT gmail DOT com

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