Re: Oracle 9i RAC vs Hardware clustering (like HACMP)

From: DA Morgan <damorgan_at_x.washington.edu>
Date: Tue, 19 Oct 2004 22:53:17 -0700
Message-ID: <1098251546.159629@yasure>

Mark Clark wrote:

> On Mon, 18 Oct 2004 21:14:38 -0700, DA Morgan
> <damorgan_at_x.washington.edu> wrote:
>
>

>>Praveen wrote:
>>
>>Cost
>>Fail-over
>>
>>RAC will cost far less. I recently priced an identical system Sun vs
>>Dell. Same number of CPUs. Sun was $750K ... Dell/NetApp ... 1/3 the
>>price after counting the cost of the RAC licenses to Oracle.
>>
>>Remember without RAC ... to purchase backup capability requires
>>duplicating everything. And even with that you won't have subsecond
>>failover.

>
>
> Worth considering the limitations of RAC too -- range etc.. That said
> h/w clustering and RAC are often complimentary in large scale
> deployments where they each provide a solution to certain
> problems/challenges. Certainly for large projects the aquisition
> costs are rarely a major factor for a blue chip.
>
>
> Mark
> http://www.linxcel.co.uk

What limitation? In Japan they ran a 10g RAC cluster with 128 nodes. Do you think you can find an SMP machine that large?

-- 
Daniel A. Morgan
University of Washington
damorgan_at_x.washington.edu
(replace 'x' with 'u' to respond)

Received on Wed Oct 20 2004 - 00:53:17 CDT