Architecting a vCloud Director Solution : Technology Mapping : 2.1 Glossary of Terms
   
2.1 Glossary of Terms
Table 1. Glossary
Term
Definition
Allocation Pool
A pool of allocated resources for which a certain percentage of compute resources is guaranteed.
Availability Zone
Single failure domain of resources.
Catalog
A repository of vApp templates and media available to users for deployment. Catalogs can be published and shared between organizations in the same vCloud environment.
Dedicated Cloud
Cloud resources dedicated to one tenant on dedicated physical infrastructure.
Edge Gateway
Virtual appliances that provide network edge security. Edge gateways connect the isolated, private networks of cloud tenants to the public side of the provider network through services such as routing, firewall, NAT, DNS relay, DHCP, site-to-site IPsec VPN, and load balancing.
External Networks
External networks provide internet connectivity to organization networks and are backed by port groups configured for Internet accessibility.
Management Cluster
Physical and virtual resources dedicated for management purposes.
Network Pools
Collections of isolated Layer 2 virtual networks available to vCloud Director for the automated deployment of organization and vApp networks.
On-Demand Cloud
Cloud resources that are committed to tenant and billed only when used.
Organization
The unit of multitenancy representing a single logical security boundary. An organization contains users, virtual data centers and catalogs.
Organization Administrator
Administrator for a vCloud Director organization responsible for managing provided resources, network services, users, and vApp policies.
Organization VDC Networks
Organization VDC networks are instantiated through network pools and bound to a single organization VDC or shared across Organization. Organization VDC networks can be isolated, routed, or directly connected to an external network.
Organization Virtual Data Center
A subgrouping of compute, network, and storage resources allocated from a provider virtual data center and assigned to a single organization. A virtual data center is a deployment environment where vApps can be instantiated, deployed, and powered on. Organization virtual data centers cannot span multiple organizations.
Pay-As-You-Go
Provides the illusion of an unlimited resource pool. Resources are committed only when vApps are created in the organization virtual data center.
Provider Virtual Data Center
A grouping of compute and storage resources from a single VMware vCenter Server®. A provider virtual data center consists of one or more resource pools and one or more datastores. Provider virtual data center resources can be shared with multiple organizations.
Reservation Pool
The compute resources allocated to the organization virtual data center are completely reserved and dedicated.
Resource Group
Compute, storage and networks for tenant workloads managed by one vCenter Server.
vApp
Container for software solution in the cloud. A vApp is the standard unit of deployment for vCloud Director. It contains one or more virtual machines, networks, and network services, has power-on operations, and can be imported or exported.
vApp Edge
Virtual router instantiated inside a vApp to provide routing, NAT, firewalling and DHCP services for vApp networks.
vApp Network
A network that connects virtual machines within a vApp, deployed by a consumer from a network pool.
vCenter Chargeback
A metering and cost calculation solution that enables accurate cost measurement, configuration, analysis, and reporting for virtualized environments. vCenter Chargeback provides the ability to map IT costs to business units or external customers.
vCloud API
An open, RESTful API for providing and consuming virtual resources from the cloud. It enables deployment and management of virtualized workloads in internal and external clouds.
vCloud Director
A software solution providing the interface, automation, and management feature set to allow service providers to supply vSphere resources as a Web-based service.
vCloud Director cell
A cell is runtime of vCloud Director services on a physical or virtual machine. Multiple cells within one vCloud Director instance can be grouped together connecting to one vCloud Director database for load balancing and high availability.
Virtual Private Cloud
Cloud resources dedicated to one tenant within a shared infrastructure.