Hi.  I am attempting to come up with something brilliant in reply.  :)  
It's too late at night and I don't have my reference material handy 
though.  I will reply tomorrow morning.

--jason

On Thu, 24 Feb 2005, Jon LaBadie wrote:

> On Thu, Feb 24, 2005 at 04:44:29PM -0800, Brooks, Jason wrote:
> > Hello,
> > 
> > A question about amanda's indexing and database
> > 
> > Short version: 
> > 
> > Does a mechanism to share databases exist in amanda?  
> > 
> > Long version: (best with an example)
> > 
> > I want >4 different configurations.  All but one will be in offsite
> > storage.  I want different configurations because then I will be assured
> > that each tapeset I have in the changer will be a complete set that I
> > change out each week for a new set.
> 
> 
> Before even attempting an answer I have a question.
> 
> What, for your needs, are the properties of a "complete tapeset"?
> It sounds like you are thinking of traditional backup systems
> where you do a monster dump of everything on day zero and then
> tiny incrementals til the next monster dump.  In such a scheme
> you need the monster dump or none of the little dumps are valid.
> So they form nice discreet sets.
> 
> Amanda spreads the level 0 dumps across then entire dumpcycle.
> So there is no discreet starting point to a set of tapes.
> If your dumpcycle is 7 days and you do a run every days (runspercycle)
> then the Monday - Sunday tapes are as valid a set as the Wednesday -
> Tuesday.  Any 7 sequential tapes is a set.
> 
> > 
> > example:
> > five configurations: Daily1-5
> > dumpcycle = five weeks
> > runspercycle = 7 days worth
> 
> dumpcycle is the 'maximum' time you want amanda to allow between
> level 0 dumps.  Do you really only want a full dump every 35 days?
> I suspect what you want is a dumpcycle of 7 days and runspercycle 7
> (note, no units).
> 
> 

-- 

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Jason Brooks ~ (503) 641-3440 x1861
      Direct ~ (503) 924-1861
Email to: jason.brooks AT windriver DOT com
Twiki: http://twiki.wrs.com/do/view/Main/JasonBrooks

Senior Systems Administration Analyst 
Wind River Systems
8905 SW Nimbus ~ Suite 255      
Beaverton, Or 97008