Hello Ian,
Bacula decides what to backup when the job starts. For differential ones,
the mtime and ctime are checked against the start time of the last full
backup job. For incremental ones, these times are checked agains the start
time of the last full/incremental/differential one.
If you run a differential after a full, then an incremental, but the
differential one hadn't finished before the incremental one starts, then
the incremental would check the last full one. So you will have both
differential and incremental identical.
Best regards,
Ana
On Tue, Jul 19, 2016 at 2:49 PM, Ian Douglas <i...@zti.co.za> wrote:
> Hi All
>
> It seems to me that Bacula makes unnecessary duplicate backups.
>
> I have
> 1. Daily incremental
> 2. Monthly differential
> 3. Annual full.
>
> However one of the backups is over 3.5 TB, and the system only manages
> about
> 100GB/hour.
>
> So the differential backup (in this case) ran for more than 24 hours. I
> also
> had a others in the queue that pushed the time to when it could get to the
> daily incremental to over 2 days later.
>
> So...
> 1. Bacula did the differential, starting on Saturday.
> 2. today it did an incremental, for stuff added since Saturday.
> 3. it then did exactly the same files as in (2) again. I was watching.
>
> I'm assuming this is because Bacula decides WHAT to back up at the time the
> job is scheduled, instead of when it is actually run.
>
> Is that correct, or is something else wrong?
>
> thanks, Ian
> --
> i...@zti.co.za http://www.zti.co.za
> Zero 2 Infinity - The net.works
> Phone +27-21-975-7273
>
>
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What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic
patterns at an interface-level. Reveals which users, apps, and protocols are
consuming the most bandwidth. Provides multi-vendor support for NetFlow,
J-Flow, sFlow and other flows. Make informed decisions using capacity planning
reports.http://sdm.link/zohodev2dev
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