Availability Zone is an EC2 concept. Zones were a sharding scheme for Nova. Zones are being renamed to Cells to avoid further confusion. Availability Zones will remain the same. Hope it helps! -S ________________________________ From: openstack-bounces+sandy.walsh=rackspace.com at lists.launchpad.net [openstack-bounces+sandy.walsh=rackspace.com at lists.launchpad.net] on behalf of Nicolae Paladi [n.paladi at gmail.com] Sent: Tuesday, March 20, 2012 6:55 AM To: openstack at lists.launchpad.net Subject: [Openstack] "nova zone" and "availability_zone" Hi all, What is the difference between "nova zone(s)" and "availability_zone"? In a new deployment, the *services* table in the nova db contains an "availability_zone" column (which is 'nova', but default). If that is not the same as "nova zones" (which are logical deployments, as far as I understood), where is information about zones stored? The only documentation about "zones" in openstack that I could find is here: http://nova.openstack.org/devref/zone.html is there anything on availability zones? Cheers, /Nicolae. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack/attachments/20120320/cc3ca274/attachment.html>