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[Sandy Walsh <sandy.walsh@xxxxxxxxxxxxx>]

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@xxxxxxxxxxxxxxxxxxx [openstack-bounces+sandy.walsh=rackspace.com@xxxxxxxxxxxxxxxxxxx] on behalf of Nicolae Paladi [n.paladi@xxxxxxxxx]
Sent: Tuesday, March 20, 2012 6:55 AM
To: openstack@xxxxxxxxxxxxxxxxxxx
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.