On Sat, Dec 10, 2011 at 7:45 PM, member horvath
<member AT thehorvaths.co DOT uk> wrote:
> I've have considered the archive function however I wasn't aware that
> the changes would be rsync'd.
> I thought it would create a tar archive of the most recent backup then
> xfer that to the archive host.
> Am I wrong in thinking this?
> I also need to ensure data integrity by check suming the remote copy
> with the onsite.

The archive function just creates the tar snapshot of the hosts you
specify. You can point that wherever you like, but making it local is
faster. Once its complete your script should then transfer it, however
and wherever you like.

Rsync just happens to be what most people would use for this, and that
protocol includes a checksum verification.

If you use a different transport mechanism, then you many need to
include a checksum routine in your script.

Regarding your scheduling requirements, the best procedure is to get
to know the BackupPC way and work within that, rather than imposing
rules that probably came previous systems. Note that within the BPC
data store, there actually is no physical difference between
incremental and full backup sets - the only difference is the
algorithm use to determine whether or not files have been updated, and
that depends on the transport protocol.

You can configure things so that you have for example " at least this
many " and be conservative.

Also note the archive tar snapshots will not have the space savings
inherent in BPC's data storage deduplication, so it's likely using
this method will result in your offsite storage requirements being
many times larger than the BPC server onsite. Not necessarily a
problem as diskspace is cheap these days, but something to plan for. .
.

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