On Thu, 2007-01-04 at 15:10 -0500, Peter Santos wrote:
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> 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?

We have and old Dell 8450 (8-way, 900Mhz Xeon, almost 7 years old now)
and it had a CPU failure about 3 years ago. The system did crash, but
crash recovery rebooted the box, the system itself marked the processor
offline and linux rebooted with 7 of the 8 CPU's. Total downtime was
about 15 minutes.

Of course, we had to schedule another outage window to replace the
faulty CPU, which was another 15 minutes, but we basically just lived on
one less processor for a few days. The OS at the time was RHEL 3. It
was the hardware that offlined the CPU, not the OS, but the OS was
totally fine with having only 7 CPU's instead of 8.

Later,
Tom



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