nanog mailing list archives

Re: Quick question.


From: "Alexei Roudnev" <alex () relcom net>
Date: Tue, 3 Aug 2004 22:52:03 -0700


It is not mad idea - 2 CPU servers are not sugnificantly more expansive as
1CPU (and notice, we count P-IV MMultiThread as 2 CPU) but increases system
redundancy to the run-away processes. Of course, it is not hardware
redundancy, but it REALLY works.



On Sat, 31 Jul 2004, Michel Py wrote:

For PCs I install dual Xeons on every production machine for
example, even though the CPU power needed for some is a 486;

What a mad idea.

Intel dont do fault-tolerant SMP.

Running SMP will lower your MTBF just by fact that you now have 2
CPUs. Then there's fact that you're far more likely to hit bugs in OS
with SMP than uniproc.

SMP for reliability? Unless it's a multi-million zSeries, What a mad
idea...

Michel.

regards,
-- 
Paul Jakma paul () clubi ie paul () jakma org Key ID: 64A2FF6A
Fortune:
Q: What's the difference between USL and the Titanic?
A: The Titanic had a band.


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