Thanks Syed,

To make me correct.


On Mon, Dec 23, 2013 at 3:06 PM, Syed Armani <syed.armani@hastexo.com> wrote:
Vikas,

This mailing list is for user groups.

Can you please ask your question on any of the following:
1) http://ask.openstack.org/
2) The general mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
3) The operators mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators

~Syed Armani


On Mon, Dec 23, 2013 at 2:51 PM, Vikas Parashar <para.vikas@gmail.com> wrote:
Hi,


IaaS is all about elastic computing. I can stretch resources as per my need - increasing/decreasing the number of cores, RAM allocated etc..

My question is - how does openStack achieve this elasticity for both computation and RAM.

If I create an image with 2 cores and 4 GB RAM (and one day I need to increase this to, lets say - 6 Cores and 12 GB RAM), but all the physical hosts that I currently have (for Compute and RAM) at my disposal have a max of 4 Cores and 4 GB RAM each..

Using openStack - 

a) is this possible (as long as the total cores and total RAM required is less than the group-total) ? If yes, how is this achieved.

b) or the elasticity will be limited to 4 Cores/4GB  (The max capacity of a physical host) ? If no, then is it possible to achieve it ?

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