Hi, At last weeks nova meeting it was decided that the "initial patch to simply extend multi-boot to schedule with hint". This has been implemented by the following https://review.openstack.org/#/c/21070/ <https://review.openstack.org/#/c/21070/> This patch does the following: 1. It introduces two scheduling hints: i. group_name - the name of a scheduling group ii. group_policy - the group scheduling policy. At the moment anti-affinity is supported. In the future we plan to add network proximity. 2. In order to be able to treat addition of new VM's to the scheduling policy the group_name and group_policy are stored in the database as metadata (hopefully at the summit we will be able to discuss this in more detail to see how they can become first class citizens). In order to be able to achieve better performance and availability it would be best to do the entire group deployment in one shot (this is what was implemented in https://review.openstack.org/#/c/19906/ <https://review.openstack.org/#/c/19906/>) Any input and comments will be great. Thanks Gary -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20130203/51f83062/attachment.html>