Re: [Xen-users] xl cpupool

[Juergen Gross <juergen.gross@xxxxxxxxxxxxxx>]

Hi,

Am 02.02.2013 00:53, schrieb Linux Hack:
> Hi,
>
> Would it possible to create cpupools with xl after the server boot and
> then assign one cpu-pool to dom0 and another one for dom-u's?
Yes.

You have to (assuming Xen 4.2):

1. remove cpus from Pool-0 with "xl cpupool-cpu-remove"
2. reduce number of dom0 cpus to fit to reduced Pool-0 with "xl vcpu-set"
3. create the domU cpupool with "xl cpupool-create"
4. assign the free cpus to the new cpupool ("xl cpupool-cpu-add")
5. create the domUs with "pool=<cpupool>" to start them in the new cpupool
   (either in the config files of the domUs or as parameter of "xl create"

> Also is there any change to make this work on server startup?
You would have to add an init script in dom0.


Juergen

--
Juergen Gross                 Principal Developer Operating Systems
PBG PDG ES&S SWE OS6                   Telephone: +49 (0) 89 3222 2967
Fujitsu Technology Solutions              e-mail: juergen.gross@xxxxxxxxxxxxxx
Domagkstr. 28                           Internet: ts.fujitsu.com
D-80807 Muenchen                 Company details: ts.fujitsu.com/imprint.html

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