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тАО04-18-2006 03:09 AM
тАО04-18-2006 03:09 AM
Disable processors
Does anyone know out there if it is possible to have say four cpu's in a DL580 but have one or more disabled using the BIOS?
The reason I ask, is that in the near future I may wish to upgrade Windows 2003 to support increased numbers of cpu's without having to take the server down for any length of time
Cheers
Si
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тАО04-18-2006 03:24 AM
тАО04-18-2006 03:24 AM
Re: Disable processors
You can always see all processors.
iCOD is in PA-RISC...
regards
Andrzej Kowalik
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тАО04-18-2006 03:50 AM
тАО04-18-2006 03:50 AM
Re: Disable processors
I thought that might be the case.
Do you if the fact is mentioned in any HP documentation?
Cheers
Si
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тАО04-18-2006 05:00 AM
тАО04-18-2006 05:00 AM
Re: Disable processors
I never heard about such feature in x86 servers.
regards,
Andrzej Kowalik
PS. I knaw, I am only forum user, and any links to HP documents...
Andrzej Kowalik
HP MASE High Availability & Clustering
HP ASE Proliant Servers
:))
PS. Maybe boot.ini switch /numproc, is a way to workaround problem?
AK
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тАО04-18-2006 06:51 AM
тАО04-18-2006 06:51 AM
Re: Disable processors
If you have a Uniprocessor HAL loaded and 4 physical CPU's installed it will only "see" one CPU. This is common in Windows 2000 when the wrong HAL is loaded. In your case you could use this to limit the CPU's.
I don't know if that suits but it should do the trick other than whip the CPU's out.
Regards,
Brian
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тАО04-18-2006 07:13 AM
тАО04-18-2006 07:13 AM
Re: Disable processors
Hi Guys,
Thanks for your input.
I hadn't thought of looking at it like that Brian, that might be the way to go.
Cheers again
Si
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тАО04-20-2006 06:44 AM
тАО04-20-2006 06:44 AM
Re: Disable processors
Haaving said that, I do not know of any other way to accomplish what you ask.
Hugo.
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тАО04-20-2006 07:16 PM
тАО04-20-2006 07:16 PM
Re: Disable processors
The BIOS will always see the processors, but you can use the /numproc=x option in boot.in to force Windows to only use x CPUs.
http://support.microsoft.com/kb/833722/en-us
Regards,
Stephen