Kernel question

slidge · External Since: Jun 27, 2007 Posts: 4

I have an academic question about RHEL4 AS. My background is in Solaris
and FreeBSD, please bear with me Smile

The scenario is that I have a server with space for four CPUs, but only
two CPUs are installed.

If I add two more CPUs at a later date, do I need to do anything to the
kernel in order for it to see the new CPUs, or will they be detected
automagically?

General Schvantzkoph · External Since: Dec 29, 2004 Posts: 1199

On Wed, 27 Jun 2007 14:47:15 +0000, slidge wrote:

> I have an academic question about RHEL4 AS. My background is in Solaris
> and FreeBSD, please bear with me Smile

>
> The scenario is that I have a server with space for four CPUs, but only
> two CPUs are installed.
>
> If I add two more CPUs at a later date, do I need to do anything to the
> kernel in order for it to see the new CPUs, or will they be detected
> automagically?

It's automatic

Jan Gerrit Kootstra · External Since: Apr 08, 2004 Posts: 290

General Schvantzkoph wrote:
> On Wed, 27 Jun 2007 14:47:15 +0000, slidge wrote:
>
>
>>I have an academic question about RHEL4 AS. My background is in Solaris
>>and FreeBSD, please bear with me Smile

>>
>>The scenario is that I have a server with space for four CPUs, but only
>>two CPUs are installed.
>>
>>If I add two more CPUs at a later date, do I need to do anything to the
>>kernel in order for it to see the new CPUs, or will they be detected
>>automagically?
>
>
> It's automatic
Slidge,

The same thing with switching on and off of hyperthreading to add to
your knowledge base.

Best regards,

Jan Gerrit

slidge · External Since: Jun 27, 2007 Posts: 4

>>
>>
>> It's automatic
> Slidge,
>
>
> The same thing with switching on and off of hyperthreading to add to
> your knowledge base.
>
>

Thanks to both of you. I just got the heads up that I'm the new "Linux
Admin", and since we run Redhat, I guess I'm going to be around here for
awhile Wink