On 2/21/2019 10:10 AM, Sanjay K wrote: > Basically I want to prioritize some vm instances over others so that > higher priority VM instances get better resource allocated at runtime > and chance to run than lower priority VMs? How do you define priority? It sounds like what you're looking for is a weigher [1] and if the ones available in-tree (upstream) are not sufficient you can plugin your own [2]. [1] https://docs.openstack.org/nova/latest/admin/configuration/schedulers.html#weights [2] https://docs.openstack.org/nova/latest/user/filter-scheduler.html#weights -- Thanks, Matt