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Posted to users@cloudstack.apache.org by Indra Pramana <in...@sg.or.id> on 2014/02/01 14:39:53 UTC
Re: Add new KVM hypervisor host into CloudStack
Hi Sugandh, Serge and Lucian,
Good day to you, and thank you for all your replies!
What I can conclude is that CPU is important to be exactly the same -- to
allow the capabilities of live VM instance migration from one host to
another. However, chassis and motherboard doesn't have to be the same --
it's normal to bring in better servers over time. Please CMIIW.
Will try ordering the server now and will update again if I encounter
further issues. Thanks!
Cheers.
On Thu, Jan 30, 2014 at 5:45 PM, Nux! <nu...@li.nux.ro> wrote:
> On 30.01.2014 08:57, Indra Pramana wrote:
>
>> Hi,
>>
>> It's time for me to add new KVM hypervisor host into our CloudStack and I
>> read these requirements:
>>
>> http://cloudstack.apache.org/docs/en-US/Apache_CloudStack/
>> 4.2.0/html/Installation_Guide/hypervisor-kvm-install-flow.html
>> - Same distribution version, is it referring to same OS and version? E.g.
>> Ubuntu 12.04 (Precise)?
>> - All hosts must be homogenous, does it mean that the new server has to be
>> exactly the same chassis, motherboard, type of CPU and RAM? Can I use a
>> different type of chassis and motherboard, but use the same type of CPU?
>>
>> Thank you.
>>
>
> Yes, I think the CPU is the important bit here and imho it should be equal
> or better than what you have if you want certain stuff like live migration
> to work. This is especially important if you use host-passthrough for CPU
> type. I do not think anyone expect you to have indentical servers
> throughout your setup; it's normal to bring in better servers as time
> passes.
>
> Lucian
>
> --
> Sent from the Delta quadrant using Borg technology!
>
> Nux!
> www.nux.ro
>
Re: Add new KVM hypervisor host into CloudStack
Posted by Serge van Ginderachter <se...@vanginderachter.be>.
On 1 February 2014 14:39, Indra Pramana <in...@sg.or.id> wrote:
> What I can conclude is that CPU is important to be exactly the same -- to
> allow the capabilities of live VM instance migration from one host to
> another.
>
Live migration I should have add to that. Offline migration shouldn't be a
problem.
Also note, KVM can be configured to support only a (common) subset of cpu
capabilities, to have a common base over all hosts.
> However, chassis and motherboard doesn't have to be the same --
> it's normal to bring in better servers over time
>
Re: Add new KVM hypervisor host into CloudStack
Posted by Serge van Ginderachter <se...@vanginderachter.be>.
On 1 February 2014 14:39, Indra Pramana <in...@sg.or.id> wrote:
> What I can conclude is that CPU is important to be exactly the same -- to
> allow the capabilities of live VM instance migration from one host to
> another.
>
Live migration I should have add to that. Offline migration shouldn't be a
problem.
Also note, KVM can be configured to support only a (common) subset of cpu
capabilities, to have a common base over all hosts.
> However, chassis and motherboard doesn't have to be the same --
> it's normal to bring in better servers over time
>