Chris Baker -- cbaker AT intera DOT com
systems administrator
INTERA -- 512-425-2006

---

From: Gerald Brandt [mailto:gbr AT majentis DOT com]
Sent: Wednesday, December 23, 2009 2:16 PM
To: General list for user discussion,questions and support
Subject: Re: [BackupPC-users] How big is your backup?

----- "Les Mikesell" <lesmikesell AT gmail DOT com> wrote:
> Gerald Brandt wrote:
> >
> > ----- "Les Mikesell" <lesmikesell AT gmail DOT com> wrote:
> >  > Gerald Brandt wrote:
> >  > > Hi Chris,
> >  > >
> >  > > The storage will be iSCSI (over gigabit), and offsite backups will be
> >  > > done via an archive done once a week.  Does that sound sane?
> >  >
> >  > What kind of archive are you planning? As is frequently discussed here
> >  > it is difficult to copy a large backuppc system in any way other than
> >  > making an image copy of the raw filesystem because of the time it takes
> >  > to duplicate the large number of hardlinks.
> >  >
> >
> > Hi,
> >
> > Basically, I plan to have a cycle of 3 offsite backup disks, and I'll
> > use the backuppc archive command to archive the latest version.  I'll
> > then copy that archive to the remote disks.
>
> The backuppc archive host setup is (a) somewhat hard to automate, and
> (b) gives a complete tar image per host.  You not only lose the history
> here but you have to store multiple copies of anything redundant.  If
> you back up many machines storing copies of the same large files it is
> possible that a single archive export will be larger than the whole
> stored (and pooled) history of the machines.  On the other hand, you
> don't need any special tools to recover the exported tar copy.
>

Hi,

That's pretty much what I believed happened.  Offsite backups is one of BackupPC's weaknesses, and I was comfortable with the shortcomings of the archive.

If anyone has something that is better, faster, cleaner, etc, I'm all ears.  But I've been following the threads and haven't seen anything that would work for me yet.

Gerald

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