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Re: [Bacula-devel] Patch: Migration jobmedia table insert incomplete


On Tuesday 26 February 2008 17.48:05 Peter Much wrote:
> <kern@xxxxxxxxxxx> aka Kern Sibbald  schrieb
> mit Datum Sun, 10 Feb 2008 10:11:26 +0100 in m2n.bacula.devel:
>
> Hello Kern,
>
>  reporting back. There were soem things that kept me occupied, so
> sorry for the late reaction.
>
> |Your preliminary patch probably corrects a good number of problems, but it
> |also suffers from two things that I can see:
> |
> |1. dev can change during execution of the code if the device is switched.
> |Therefore, at this top level routine, it must be reloaded each time it is
> |referenced
>
> Ups. Well yes, I should have thought about why the records are done
> alright for the second and further extents ("files" on target tape).
>
> [structural design matters]
>
> |What do you think?
>
> Well, I think, lets first have a look at another issue that I had
> with migration, because there it seems more difficult to address it
> in a well-structured way.
> Over all, migration is an incredibly valuable function, because it
> elevates Bacula from "something that makes backups" into a
> management tool for all kinds of archived data. All the things
> like copying storage, reorganizing storage etc. open up from here.
> But, as I see it, when we start using it in such a way, we will
> currently run into some deficiencies, and from there it may be
> worth thinking about how much extra structure might be necessary
> to get it together flawlessly.

Yes, there are some problems with migration, but you don't explicitly mention 
what deficiencies you expect to run into.

Regards,

Kern

>
> best regards,
> PMc
>
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