Re: RAC newbie question

I would not go with a 9 node cluster, applications very often do not scale that well and it would not be at all unknown for a 9 node cluster to actually be slower than a 2 node cluster.

On Mon, Oct 6, 2008 at 1:35 PM, Terrian, Thomas J Mr CTR DLA J6DIB < Tom.Terrian.ctr_at_dla.mil> wrote:

> Are these three production databases? YES
>
> Any development or staging to worry about? YES, they are on other
> machines on one cluster.
>
> Does any individual database have a higher profile than the others? Not
> sure what you are asking.
>
> Does it need to be alone for political/business reasons? Good question,
> right now each program manager wants his own cluster. We are looking to
> see if it may be better for the organization to just set up one
> production cluster.
>
> Do any of these databases hold a warehouse? Are any a reporting only
> database? NO, OLTP.
>
>
>
> -----Original Message-----
> From: Mercadante, Thomas F (LABOR)
> [mailto:Thomas.Mercadante_at_labor.state.ny.us]
> Sent: Monday, October 06, 2008 2:26 PM
> To: Terrian, Thomas J Mr CTR DLA J6DIB; oracle-l_at_freelists.org
> Subject: RE: RAC newbie question
>
> Tom,
>
> Are these three production databases?
> Any development or staging to worry about?
> Does any individual database have a higher profile than the others?
> Does it need to be alone for political/business reasons?
> Do any of these databases hold a warehouse? Are any a reporting only
> database?
>
> The above in my mind are reasons to separate things a little bit. Being
> asked these questions now seems like putting the cart before the horse.
> A plan should have been developed before the arrival of the equipment!
> LOL!!
>
> If your answer's to the above is that all things being equal, all three
> databases are equal to each other, then I would make one big cluster I
> think. You could then build it slowly - add one cluster at a time - and
> learn as you do.
>
> Just my 2 cents. I'm sure someone is going to violently disagree with
> me.
>
> Hope this helps.
>
> Tom
>
> -----Original Message-----
> From: oracle-l-bounce_at_freelists.org
> [mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Terrian, Thomas J Mr
> CTR DLA J6DIB
> Sent: Monday, October 06, 2008 2:10 PM
> To: oracle-l_at_freelists.org
> Subject: RAC newbie question
>
> I am curious on your thoughts on this.......we have 3 unrelated
> databases and 9 boxes to put them on.
>
> Would you recommend one 9 node cluster and put them on that one or three
> 3 node clusters (one for each database)?
>
> We are looking at the pros/cons of each. Does anyone have any thought
> either way?
>
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