Re: Question regarding --go-into with --prune

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On 10/07/2020 19:44, Nils Privat wrote:
> Hello,
>
> sorry for the late response. Yes, the parameter '... --prune
> "movie/[B-Zb-z]*"' did the trick. Much thanks, now it works as
> expected.

good to know that!

>
> Another question came to my mind: Like i said i split the full
> backup into separate archives (movies with a (movie/A*), then
> movies with b (movie/B*) and so on). During full backup I created
> the catalogue on the fly to be able to make
> differential/incremental backups later. Because I split the full
> backups into multiple, for e.g. 26 "single full" backups, I also
> have to do 26 differential/incremental backups (movie/A*, movie/B*
> etc). The changes under folder "movie" after all full backups are
> not that big, so it would be nice if I can do a single
> differential/incremental backup from 'movie/*' and not for every
> single letter. I wonder if i can merge the isolated catalogues from
> each single full backup so that the next differential/incremental
> backup will save all changes under 'movie/*'.

Yes, you can at the condition you used the same -R option for all of
your 26 archives, else you cannot set a correct value to the -R root
option while performing the global differential backup, value that
suits all the 26 full backups.

# This can be done this way:

dar -c full_A -am -R /pool -g movies -an -P "[b-z]*" ...
dar -c full_B -am -R /pool -g movies -an -P "[ac-z]*" ...
...
dar -c full_Z -am -R /pool -g movies -an -P "[a-y]*" ...

# second, you create the isolated catalogues (or you can do it on-fly
# during the previous operations):

dar -c cat_full_A -A full_A -z ...
dar -c cat_full_B -A full_B -z ...
...
dar -c cat_full_Z -A full_Z -z ...

# then you merge all isolated catalogues:

dar -+ cat_full_tmp_even -A cat_full_A -@ cat_full_B -z -ak

dar -+ cat_full_tmp_odd -A cat_full_tmp_even -@ cat_full_C -z -ak
dar -+ cat_full_tmp_even -A cat_full_tmp_odd -@ cat_full_D -z -ak
dar -+ cat_full_tmp_odd -A cat_full_tmp_even -@ cat_full_E -z -ak
...

dar -+ cat_full -A cat_full_tmp_odd -@ cat_full_Z -z -ak

# last you can use cat_full catalogue as reference for further
# differential backups:

dar -A cat_full -c diff1 -R /pool -g movies

# and so on...


> So my question: Can I only merge all created dar catalogues to get
> a big catalogue ? (Since i am backing up to tape i cant load all
> real data full backups to merge them).

no, this is possible, I've just double check by testing this,
and it works as expected.

>
> Hope you understand what i mean. Much thanks

I think I've understood you need, let me know!
Cheers,
Denis
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