Mike Spreitzer <mspre...@us.ibm.com> wrote on 29/09/2013 08:02:00 PM:
> Another reason to prefer host is that we have other resources to > locate besides compute. Good point. Another approach (not necessarily contradicting) could be to specify the location as a property of host aggregate rather than individual hosts (and introduce similar notion in Cinder, and maybe Neutron). This could be an evolution/generalization of the existing 'availability zone' attribute, which would specify a more fine-grained location path (e.g., 'az_A:rack_R1:chassis_C2:node_N3'). We briefly discussed this approach at the previous summit (see 'simple implementation' under https://etherpad.openstack.org/HavanaTopologyAwarePlacement) -- but unfortunately I don't think we made much progress with the actual implementation in Havana (would be good to fix this in Icehouse). Regards, Alex
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