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Home -> Community -> Usenet -> c.d.o.server -> Re: Oracle RAC for scalability or High Availability only
I read Mogen's white paper. Thanks for the suggestion.
Is RAC scalability typically only justifiable when you need to purchase a server that has more than 4 CPUs? Someone mentioned a 10 CPU box. I don't have that magnitude of growth to worry about, and I don't need to have HA.
In my case, I am looking at two scenarios:
At what rate of growth would RAC make sense financially from a scalability-only perspective? Let's suppose that in 3-5 years the system is tapped out and our user base and/or system resource requirements doubles. In that time, if Moore's Law is still holding-up, wouldn't it be cheaper overall to replace the single SMP server with the latest and greatest hardware rather than use RAC? Yeah, I know it's a pain to migrate to another server vs. simply adding another node. But at what level of forecasted scalability does RAC become a must (or highly recommended) vs. a single SMP server? 50% growth? 100%? 200%? 400%?
I'd like to hear more arguments in favor of a single SMP server, just to know RAC's proper place based on expected growth of users and/or system resources. Thanks muchly. Received on Wed Feb 15 2006 - 08:54:16 CST