DAIR is hosted at two different data centers across Canada: one in Alberta and the other in Quebec. It consists of a cloud controller at each location, although, one is designated the "master" controller which is in charge of central authentication and quotas. This is done through custom scripts and light modifications to OpenStack. DAIR is currently running Grizzly.
For Object Storage, each region has a swift environment.
A NetApp appliance is used in each region for both block storage and instance storage. There are future plans to move the instances off the NetApp appliance and onto a distributed file system such as Ceph or GlusterFS.
VlanManager is used extensively for network management. All servers have two bonded 10GbE NICs that are connected to two redundant switches. DAIR is set up to use single-node networking where the cloud controller is the gateway for all instances on all compute nodes. Internal OpenStack traffic (for example, storage traffic) does not go through the cloud controller.
