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Dynamic CPU Re-Allocation on Redhat under vMware?

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Alzhy
Honored Contributor

Dynamic CPU Re-Allocation on Redhat under vMware?

Is this possible?

We're using vSphere (ESX 4.X) and VI does not seem to allow me to do addition or reduction of VCPUs whilst the OS is running.

I have not tried under RHEV/KVM yet but I suppose it is possible?

Thanks.

Hakuna Matata.
4 REPLIES
Ivan Ferreira
Honored Contributor
Solution

Re: Dynamic CPU Re-Allocation on Redhat under vMware?

AFAIK you cannot dynamically add and remove CPU in a virtualized environment yet. Currently at most you can:

http://kbase.redhat.com/faq/docs/DOC-15523
Por que hacerlo dificil si es posible hacerlo facil? - Why do it the hard way, when you can do it the easy way?
Randy Jones_3
Trusted Contributor

Re: Dynamic CPU Re-Allocation on Redhat under vMware?

Apparently the high-end version of vSphere supports it for some Windows releases, but not for Linux (yet).

See http://communities.vmware.com/message/1274943;jsessionid=337AB5CE482B30FF9FCA4A3498893330
Gordon Sjodin
Frequent Advisor

Re: Dynamic CPU Re-Allocation on Redhat under vMware?

I think it is only available for w2k8 64 bit OS
Alzhy
Honored Contributor

Re: Dynamic CPU Re-Allocation on Redhat under vMware?

Thanks all...

It appears KVM since -64 supports CPU Hot Plugging. Anyone tried this yet?
Hakuna Matata.