This blog is part of my series on Openstack Juno. In this blog, I will cover the usage of Openstack services Nova, Cinder.
I found this blog on Openstack services good in giving a highlevel overview of services and comparing individual Openstack services with Amazon AWS services.
Nova basics:
Nova is the Openstack compute service.
Following command shows the flavors available by default. Flavors are different configurations(CPU, memory, hard disk) for the VMs that can be created from Nova.
Sreenivas Makam's Blog 