[openstack-dev] [nova] How are vcpu's, ram mapped with an instance

Henrique Truta henriquecostatruta at gmail.com
Tue Apr 7 13:59:50 UTC 2015


Hi Abhishek,

You can change it directly using KVM/Qemu command line. However, nova
probably won't be notified and the information on the database will be
outdated.

Em ter, 7 de abr de 2015 às 06:04, Abhishek Talwar/HYD/TCS <
abhishek.talwar at tcs.com> escreveu:

> Hi Folks,
>
> When we boot an instance and assign a flavor to it, how are the vcpu's,
> ram given to the instance. Actually the question is this while creating an
> instance we must be assigning it some Vcpu's according to the flavor we
> gave to the instance. So where are these Vcpu's placed and how are they
> mapped with an instance.
>
> Suppose I want to add some more Vcpu's to my VM at runtime without
> changing my flavor to a bigger one, can I do it ?
>
>
> --
> Thanks and Regards
> Abhishek Talwar
> Employee ID : 770072
> Assistant System Engineer
> Tata Consultancy Services,Gurgaon
> India
> Contact Details : +918377882003
>
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