Flavors define the compute, memory, and storage capacity of instances. The definition of this determines the “size” of a virtual server. Flavors can also determine which hypervisor an instance will be launched on. See the section on Aggregates for more info. Admins can view all the Flavors configured for the Availability Zone on the Admin -> Flavors page. Each Availability Zone comes with a predefined set of flavors configured. See the instructions on creating a new flavor below.