VMware VCLOUD SDK 1.0 - FOR PHP DEVELOPERS GUIDE Manual page 8

vCloud SDK for PHP Developer's Guide
Figure 1-1. vCloud Object Taxonomy
vDC1
vApp
Media
Media
vDC2
vApp
Media
Media
Network
Network
vCloud Virtual Datacenters
A vCloud virtual datacenter (vDC) is an allocation mechanism for resources such as networks, storage, CPU,
and memory. In a vDC, computing resources are fully virtualized, and can be allocated based on demand,
service level requirements, or a combination of the two.
There are two kinds of vDCs:

Provider vDCs. These vDCs contain all the resources available from the vCloud service provider.
Provider vDCs are created and managed by vCloud system administrators.

Organization vDCs. These vDCs provide an environment where virtual systems can be stored, deployed,
and operated. They also provide storage for virtual media, such as floppy disks and CD ROMs.
An organization administrator specifies how resources from a provider vDC are distributed to the vDCs in an
organization.
vCloud Catalogs
Catalogs contain references to virtual systems and media images. A catalog can be shared to make it visible to
other members of an organization, and can be published to make it visible to other organizations. A vCloud
system administrator specifies which organizations can publish catalogs, and an organization administrator
controls access to catalogs by organization members.
vCloud Tasks
Long‐running operations initiated by members of an organization create tasks, which are kept on the
organization's tasks list.
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Organization
vApp
template
vApp
template
users
Catalog 3
Catalogitem
Catalog 2
Catalogitem
em
Catalog 1
em
em
Catalogitem
Catalogitem
Catalogitem
Catalogitem
groups
TasksList
em
em
em
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