Hi,
On 4/19/2007 4:48 PM, Mariusz Czulada wrote:
> Hello,
>
> I have yet another problem to solve. I didn't find similar case in
> documentation.
>
> I have two separate systems in two locations (let's say "site1" and
> "site2"). In "site1" I have local DDS5 drive and TS3310 library. In
> "site2" server is only equiped with DDS5. Also, "Site1" is accesible
> from "Site2" via WAN. So, "Site1" configuration looks like this:
>
> Site1:
> - StorageDaemon1:
> * device: filesystem-1
> * device: dds5-1
> * autochanger: ts3310-1
> - Director1:
> * storage: filesystem-1 (@StorageDaemon1)
> * storage: dds5-1 (@StorageDaemon1)
> * storage: ts3310-1 (@StorageDaemon1)
> * pool: localfiles-1
> +storage: filesystem-1
> * pool: localtape-1
> +storage: dds5-1
> * pool: tapelibrary-1
> +storage: ts3310-1
>
> I plan to backup backup hosts to pool "localfiles-1", then migrate it to
> "tapelibrary-1". "localtape-1" will be used for backupserver itself.
> Expect no problems with it. Then, "Site2" conf:
>
> Site2:
> - StorageDaemon2
> * device: filesystem-2
> * device: dds5-2
> - Director2:
> * storage: filesystem-2 (@StorageDaemon2)
> * storage: dds5-2 (@StorageDaemon2)
> * pool: localfiles-2
> +storage: filesystem-2
> * pool: localtape-2
> +storage: dds5-2
>
> Again, I plan to backup backup hosts from "Site2" to pool "localfiles-2"
> and "localtape-2" will be used for backupserver itself. Expect no
> problems with it, either.
>
> We could not buy a dedicated library for "Site2", OTOH TS3310 in "site1"
> is big enough to hold backups from both sites. So, I thought about
> migrating jobs stored in "localfiles-2" to a library via WAN connection.
> IHMO I should add such items:
>
> Site2:
> - Director2:
> * storage: ts3310-1 (@StorageDaemon1)
> * pool: tapelibrary-2
> +storage: ts3310-1
>
> So I could migrate locally stored jobs from "fileststem-2" to
> "tapelibrary-2" which resides on remote ("Site1") library.
>
> !!!!!!
>
> My question is: are there any weak points in this idea?
Yes...
> I.e. is it
> possible to migrate between different storage daemons?
No, that's not possible. Perhaps it will be implemented some day - I
talked with Kern about this - but I'm quite sure nobody started
implementing this.
> Can [slow] WAN
> connection (some 2 Mb/s I think) affect backup reliability?
Not reliablility itself, but the duration of the jobs alone makes them
more easily affected by network problems.
> !!!!!!
>
> Any comments and suggestions are gratly appreciated.
>
> Regards,
>
> Mariusz Czulada
Arno
--
IT-Service Lehmann [EMAIL PROTECTED]
Arno Lehmann http://www.its-lehmann.de
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