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Hi,

so if you scale your compute nodes it's not more stable but you have a
better distribution of VM's. So if one compute node goes down it will
not effect a mass of VM's only these VM's they're running on there.

You can use availability zones or aggregates to have a better
distribution of your VM's.
In addition you should use a shared storage to storage the compute
base images like root disc and ephemeral disc to use live migration
and host evacute.


Cheers
Heiko

On 25.08.2014 10:43, Gowri LN wrote:
> Hi,
> 
> Can anyone suggest me where I can get information about how HA is
> implement is compute node ? I know that minimum 3 controllers are
> required to configure HA mode but my question is, if I add more
> compute nodes as well will my cluster be more stable? Are the VM s
> replicated over compute nodes?
> 
> Can anyone provide information on this?
> 
> 
> I am quite new to OpenStack and to mailing list. Any help is
> appreciated . Thank you,
> 
> 
> 
> _______________________________________________ Mailing list:
> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack Post
> to     : openstack at lists.openstack.org Unsubscribe :
> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
> 

- -- 
Anynines.com

B.Sc. Informatik
CIO
Heiko Krämer


Twitter: @anynines

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