As I know, I can take CPU offline on some Linuxes. You can disable CPU by
bios on some servers.

But, again, you dont need to do it on 2 CPU servers - they are very reliable
by themself. We did it on Solaris few times, just because Sparc servers
likes to crash and to break.

One thing which I learned many years ago - if server is bigger than 4U in
size, it is NEVER EVER reliable. Just common rule of thumb, working very
well. The only known exception is Cisco catalist 6509 and 550x switch (they
are reliable even if they are big).





----- Original Message -----
From: "Peter Santos" <psantos@(protected)>
To: "Alexei_Roudnev" <Alexei_Roudnev@(protected)>
Cc: <suse-oracle@(protected)>
Sent: Thursday, January 04, 2007 12:10 PM
Subject: Re: [suse-oracle] re: Possibly migrating from Solaris to Suse + ASM
???


> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Your probably right. I remember a CPU failure about 1yr ago and the system
did crash ..
> I was just reiterating what our sysadmin said.
>
> Although, I will say that we were able to simply take the CPU offline
> and get the machine up and restart the database. Total downtime was about
15 minutes
> which is acceptable for us.
>
> I don't think you can offline CPU's in Intel Linux servers?
>
> - -peter
>
>
> Alexei_Roudnev wrote:
> > I had many CPU failures on SUN boxes. In 90% cases, no matter what is
the
> > server (how much HA stuff embedded), system crashes.
> >
> > And I never ever saw a single CPU failure on Intell DELL 2850-th (saw
> > recoverable memory failures).
> >
> > BIG box (like Sun E4500) never can be reliable. Just because it is BIG.
> > Exceptions exists, but they have a skyrocketed price.
> >
> > ----- Original Message -----
> > From: "McAllister, Andrew" <McAllisterA@(protected)>
> > To: "Peter Santos" <psantos@(protected)"
> > <kevinc@(protected)>
> > Cc: <suse-oracle@(protected)>
> > Sent: Thursday, January 04, 2007 7:01 AM
> > Subject: RE: [suse-oracle] re: Possibly migrating from Solaris to Suse +
ASM
> > ???
> >
> >
> >> -----Original Message-----
> >> From: Peter Santos [mailto:psantos@(protected)]
> > snip
> >> My other concern was raised by our sysadmin. With our
> >> SUN machine, if one of the
> >> CPU boards crashes, the machine will not always crash
> >> (not sure about this ..), but
> >
> >
> >
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