RE: RAC - mix Intel and AMD in same cluster ?

From: Matthew Zito <mzito_at_gridapp.com>
Date: Thu, 23 Jul 2009 17:40:00 -0400
Message-ID: <C0A5E31718FC064A91E9FD7BE2F081B1022890A6_at_exchange.gridapp.com>

I wouldn't know for sure if Oracle support had given us flack - but I probably would have heard the derisive laughter from the development side of the office if they had. I think the more likely scenario that *could* land you in trouble is if the chipset/driver differences between the two hardware architectures required a slightly different kernel version between the two types of boxes, Oracle support could gripe about that.

But to be honest, in either situation, they'd have to notice first, and for example, RAC is explicitly not supported on VMWare and we're well north of 100 clusters running on VMWare, and Oracle has never noticed/cared when supporting us.

Thanks,
Matt

> -----Original Message-----
> From: Crisler, Jon [mailto:Jon.Crisler_at_usi.com]
> Sent: Thursday, July 23, 2009 5:31 PM
> To: Matthew Zito; oracle-l
> Subject: RE: RAC - mix Intel and AMD in same cluster ?
>
> Thanks Matt !! I always appreciate your knowledge and opinions. Has
> Oracle Support ever questioned you about this ?
>
> -----Original Message-----
> From: Matthew Zito [mailto:mzito_at_gridapp.com]
> Sent: Thursday, July 23, 2009 5:00 PM
> To: Crisler, Jon; oracle-l
> Subject: RE: RAC - mix Intel and AMD in same cluster ?
>
> It should work fine - we have clusters here that are like that. As
> long as the architecture and OS match, the only difference you'll see
is
> any performance differences between the two processors.
>
> Thanks,
> Matt
>
> > -----Original Message-----
> > From: oracle-l-bounce_at_freelists.org
> [mailto:oracle-l-bounce_at_freelists.org]
> > On Behalf Of Crisler, Jon
> > Sent: Thursday, July 23, 2009 4:54 PM
> > To: oracle-l
> > Subject: RAC - mix Intel and AMD in same cluster ?
> >
> > Has anybody here built or upgraded a 10g RAC cluster using a mix of
> both
> > Intel and AMD processors ? We have an existing 3 node RAC cluster,
RH
> > Linux 4 with AMD Opteron 3 ghz dual core cpu's. It is being
> considered
> > to add a 4th node but with Intel CPU since the servers we used ( HP
DL
> > 585 G2 ) are no longer available new. Any thoughts in mixing Intel
> and
> > AMD processors in the same cluster ? We are also looking at
upgrading
> > the existing processors from dual-core to quad-core, but the quads
> seem
> > to max out at 2.4 ghz while the duals go to at least 3.2 ghz.
> Obviously
> > OS and Oracle will stay same version, but we might be forced to use
> > Intel to add additional nodes, assuming it even works.
> > --
> > http://www.freelists.org/webpage/oracle-l
> >

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Received on Thu Jul 23 2009 - 16:40:00 CDT