nova-manage (and I believe somewhere in the nova command as well?) can disable a service. This will prevent new instances from spawning but still allow them to be migrated to another host. The Ops Guide has a chapter on maintenance and failures: http://docs.openstack.org/trunk/openstack-ops/content/maintenance.html#compute_node_failures And there's also the "nova evacuate" command, but I've never used it, so I'm not entirely sure how it works or when to use it: http://docs.openstack.org/user-guide/content/nova_cli_evacuate.html Hope that helps, Joe On Thu, Feb 13, 2014 at 1:20 PM, Robert van Leeuwen < Robert.vanLeeuwen at spilgames.com> wrote: > > Is there an easy way to get a list of all instances on a specific host? > > Never mind, found it: > nova hypervisor-servers $hostname. > > Still curious what other people use for putting machines in maintenance > though :) > > Cheers, > Robert van Leeuwen > _______________________________________________ > OpenStack-operators mailing list > OpenStack-operators at lists.openstack.org > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-operators/attachments/20140213/ae3d8ca1/attachment.html>