RAC or Large SMP...?
Date: Mon, 6 Oct 2008 17:40:46 -0700 (PDT)
I support an OLTP application which handles 2 million transactions per day and is running on 10gR2 EE on RHEL 4 x86_64.
I am investigating scaling options for the application and I'm trying to decide between 2 large SMP servers or a multi-node RAC configuration.
As far as I can tell, the highest number of cores available in an x64_64 server is 24. This would only allow us to handle 6 times the current workload, and realistically we need to be able to support up to 20 times the load.
Has anyone had any experience of comparing the 2 approaches with respect to cost, manageability, performance, etc. Can you offer any advise and/or pointers to resources to help out with this investigation.
Specifically I'm interested in:
What is the most powerful x86_64 machine available..?
Can Oracle scale well on NUMA based architectures (as some of the high
end x64_64 based servers seem to be)..?
Is the cost difference between '2 x large SMP' and 'multi-node RAC' large enough to justify the extra complexity of administering a cluster environment...?
Any assistance on this would be greatly appreciated.
Thanks Received on Mon Oct 06 2008 - 19:40:46 CDT