Hi, I do not familiar with mirantis os 9, but in general there is an architecture when vm can be still accessible even without controller. Also, there is a guide for HA deployment, here are for controllers in particular - https://docs.openstack.org/ha-guide/controller-ha.html On 12.04.2017 06:16, Konstantin Raskoshnyi wrote: > Hi guys, > I'm new to openstack. > Installed mirantis os 9, > If one of controllers goes down - vm machines are not accesible, I > though openstack supposed to work even if one controller is alive > > Any thoughts? > > > _______________________________________________ > 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 >