Nova, OpenStack Compute service is used for hosting and managing cloud computing systems. It is a component based architecture enabling quicker additions of new features. It is fault tolerant, recoverable and provides API-compatibility with systems like Amazon EC2.
Neutron, a network service for OpenStack, is a pluggable, scalable and API-driven system for managing networks and IP addresses. It also provides a variety of network services ranging from L3 forwarding and NAT to load balancing, edge firewalls and IPSEC VPN.
Cinder is a persistent block level storage device for use with OpenStack compute instances. It manages the creation, attachment and detachment of block devices to servers. In addition to using simple Linux server storage, Cinder provides unified storage support for numerous other storage platforms, including Ceph, NetApp, Nexenta, SolidFire and Zadara.
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