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Quick Start Glossary: Hybrid cloud

Contributor(s): Matthew Haughn

Print out our handy glossary of essential hybrid cloud terminology for a fast reference. Online, each term links to our full definition, which also includes resources for further learning.

cloud broker -- a third-party individual or business that acts as an intermediary between the purchaser of a cloud computing service and the sellers of that service.  

cloud bursting -- an application deployment model in which an application runs in a private cloud or data center and bursts into a public cloud when the demand for computing capacity spikes.

cloud federation -- the practice of interconnecting service providers' cloud environments to load balance traffic and accommodate spikes in demand.

Cloud NAS -- remote storage that is accessed over the Internet as if it was local.  The storage is usually hosted by a third-party service provider. 

cloud orchestrator -- software that manages the interconnections and interactions among cloud-based and on-premises business units. 

cloud provisioning -- user account provisioning in a cloud environment: The user's authorization and settings are configured for  services and applications located remotely and delivered over the Internet.

CloudStack -- an open source cloud management platform for delivering Infrastructure-as-a-Service (IaaS) in cloud computing environments.

Eucalyptus -- an open source software platform for implementing Infrastructure as a Service (IaaS) in a private or hybrid cloud computing environment.

HP Helion -- Hewlett-Packard's open source cloud computing products and services. Based on OpenStack, Helion is designed to give customers more choice and greater control over private and hybrid cloud deployments. 

hybrid cloud -- a cloud computing environment in which an organization provides and manages some resources in-house and has others provided externally. Consists of at least one private cloud and one public cloud.

hybrid cloud hosting -- a model that allows organizations to provision dedicated servers and storage and  shared cloud servers and storage on the same network. 

hybrid cloud storage -- an approach to managing storage that uses both local and off-site resources. Often used to supplement internal storage with public cloud storage. 

OpenStack -- an open source infrastructure as a service (IaaS) initiative for creating and managing large groups of virtual private servers in a data center. 

private cloud (also called internal cloud) -- a marketing term for an enterprise computing architecture that's protected by a firewall. 

public cloud --  the standard cloud computing model, in which a service provider makes resources, such as applications and storage, available to the general public over the Internet.

virtual private cloud (VPC) -- the logical division of a public cloud service provider's multi-tenant architecture to support private cloud computing in a public cloud environment.   

This was last updated in June 2015

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