On 14.04.2012 14:41, Timo Neuvonen wrote:
>>> Yes, I know that the Bacula Release Notes say "As always, both the
>>> Director
>>> and Storage daemon must be upgraded at the same time."
>>>
>>> Is this because of some shared library versions or something else "single
>>> host environment"- related?
>>>
>>> I'm migrating my old CentOS 5.x-32 system with Bacula 5.0.3, to CentOS
>>> 6.2-64, with Bacula 5.2.6.
>>>
>>> I'm very tempted to have an intermediate step (for just a few days) with
>>> the old storage (running in the old hw) and the new director (in the new
>>> hw).
>>>
>>> So both the director and storage would be of 5-generation with different
>>> minor numbers, and everything running in any single host, would be of
>>> exactly the same version.  Any chance this combination might work?
>>>
>>> Of course, as long as I had that cocktail in use, I wouldn't touch the
>>> conf
>>> files for no other reason but to edit machine names where necessary. So
>>> no
>>> attempt to use any new features... if the communication protocols between
>>> the daemons haven't changed, I guess there shouln't be anything
>>> wrong -unless the daemons explicitly check the version info.
>> Hi.
>>
>> Why would you like to have different versions of DIR and SD installed on
>> the same machine?
> I must have expressed myself unclearly. So, absolutely they wouldn't be on
> the same machine. The old SD on old the hw, the new DIR on the new hw. But
> can this combination work together?
>
> Reason for this idea: I try to keep downtime at minimum (this is much more
> than just a backup server), and I would configure new director etc on the
> new system, and start using it (among other non-backup-related services).
> However, I want to keep old system still functional, and my tape hw is still
> attached to that old system.
>
> --
> TiN

Well, officially it's recommended to keep DIR and SD at the same 
version, but I accidentally discovered that even DIR 5.2.6 (on FreeBSD) 
and SD 5.0.3 (on Debian) work together just fine.

--
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