Hello,
2015-05-10 17:38 GMT+02:00 Ian Young <i...@iay.org.uk>:
> I've been using Bacula for quite a few years, and it has helped me dig
> myself out of the occasional problem. Today I'm recovering from a more
> serious problem and I find that some of the files I'm trying to restore
> don't get restored.
>
> Amongst other things, I'm confused by the following from "list job="
> output:
>
> | 9,902 | srv-c701-backup | 2015-04-28 23:05:05 | B | I | 81,565
> | 2,930,078,065 | T |
> | 9,911 | srv-c701-backup | 2015-04-29 23:05:04 | B | I | 191
> | 2,098,677 | T |
> | 9,920 | srv-c701-backup | 2015-04-30 23:05:03 | B | I | 156
> | 2,185,564 | T |
> | 9,929 | srv-c701-backup | 2015-05-01 23:05:04 | B | I | 91,030
> | 3,450,906,888 | T |
> | 9,938 | srv-c701-backup | 2015-05-02 23:05:03 | B | D | 112
> | 2,184,302 | T
>
> What I am trying to understand is: if the incrementals are backing up
> things that have changed since the previous incremental,
Incremental is backing up everything from a previous backup of any level
(F,D,I).
> why does the subsequent differential not appear to include any of them,
> given that it's supposed to be backing up everything changed since the last
> full dump (in my case, on 2015-04-19) ?
>
Well, it should. A differential backup level is backing up everything which
was modified (or deleted when using accurate backup mode) since last full
backup level.
>
> The director is running on a CentOS 6 system and claims to be Bacula
> 5.0.0. The client is CentOS 7 and Bacula 5.2.x, but looking at the jobs for
> other systems they also seem to have inconsistencies like this.
>
It is unsupported configuration. Your any client (Bacula FD) version
shouldn't be a newest version then Director/Storage.
This could be a core problem in your case.
>
> Restoring the most recent full dump, the most recent differential and all
> subsequent incrementals definitely leaves a lot of files off the table.
> I've had a bit more success by restoring from all the jobs available in
> order, but unfortunately some of the earlier incrementals have been
> recycled so the data unique to them appears to be lost.
>
If you want to restore a recent backup of the client then you should use a
p.5 of the restore command: 5: Select the most recent backup for a client.
Then Bacula will compound a set of required jobs for you.
>
> I'd really appreciate any pointers as to what is going on here. I'm a bit
> mystified, because this flies in the face of my previous understanding of
> the whole idea of a differential backup.
>
>
First - UPGRADE YOUR BACULA DIRECTOR/STORAGE! it is more then 5 years
old!!! :)
best regards
--
Radosław Korzeniewski
rados...@korzeniewski.net
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