Re: RAC or Large SMP...?
From: DA Morgan <damorgan_at_psoug.org>
Date: Tue, 07 Oct 2008 22:18:37 -0700
Message-ID: <1223443114.887587@bubbleator.drizzle.com>
>
> Yeah x86_64 is the chosen platform.
>
> I thought 24 cores was the limit for xSeries. How far can you go..?
>
> I heard that the architecture of the high and IBM xSeries is NUMA
> based (rather than SMP) and I was concerned at whether an Oracle
> database with a large SGA would be able to scale on a NUMA based box
> considering the relatively high latencies of non-local memory access.
>
> Do you have any experience with Oracle on high end xSeries..?
>
> Thanls
Date: Tue, 07 Oct 2008 22:18:37 -0700
Message-ID: <1223443114.887587@bubbleator.drizzle.com>
mccmx_at_hotmail.com wrote:
>> If you have your mind set on x86, I would suggest looking into IBM xSeries. >> They can scale way beyond 24 cores.- Hide quoted text -
>
> Yeah x86_64 is the chosen platform.
>
> I thought 24 cores was the limit for xSeries. How far can you go..?
>
> I heard that the architecture of the high and IBM xSeries is NUMA
> based (rather than SMP) and I was concerned at whether an Oracle
> database with a large SGA would be able to scale on a NUMA based box
> considering the relatively high latencies of non-local memory access.
>
> Do you have any experience with Oracle on high end xSeries..?
>
> Thanls
How big can you scale x86?
About this big:
http://www.oracle.com/solutions/business_intelligence/exadata.html
Which seems to be large enough for Amazon.com.
-- Daniel A. Morgan University of Washington damorgan_at_x.washington.edu (replace x with u to respond)Received on Wed Oct 08 2008 - 00:18:37 CDT