Key Concepts

Key Terminology 1
This list contains a collection of terms relevant to understanding the vCloud Air. These terms are included
because they might be new to the reader, uncommon, or specialized.
A-F
catalog
Used for storing content. Each organization has its own catalog to which
users can add templates and share content with other users. Using
vCloud Director, ISO media files can also be uploaded and shared via
catalogs.
CPU resources
Virtualization of CPU (vCPU) adds varying amounts of overhead depending
on the percentage of virtual machine workload that can run in direct
execution, and the costs of virtualizing the remaining instructions that
cannot be directly executed. The amount of available CPU therefore impacts
performance.
colocation
Locating customer equipment in a third-party data center. Service providers
or cloud computing providers furnish the floor space, electrical power and
high-speed links to the Internet for a customer's Web servers. Colocation
provides power and air conditioning for servers and may also include
equipment maintenance and troubleshooting. Colocation can facilitate
interconnections and improve turnaround time.
Data Protection
An optional data backup feature available for purchase that backs up virtual
machines every 24 hours. You can restore a virtual machine using its backup
image by working with Technical Support.
Dedicated Cloud service
option
A service option of vCloud Air that provides a single tenant private cloud
with dedicated computing servers, layer-2 network isolation for workload
traffic, persistent storage volumes, and a dedicated cloud management
instance. Infrastructure capacity can be allocated to a single virtual data
center or multiple virtual data centers, at your discretion.
Direct Connect
In vCloud Air, you can order a direct network connection between your
premises or colocation center and your vCloud Air region. Using a direct
network connection ensures a degree of dedicated bandwidth to a
Dedicated Cloud service or a Virtual Private Cloud service.
VMware, Inc. 7