Information Technology Reference
In-Depth Information
Review the most important topics in the chapter, noticed with the Key Topic icon in the
outer margin of the page. Table 4-6 lists a reference of these key topics and the page num-
bers on which each is found.
Ta b l e 4 - 6
Key Topics
Key Topic Element
Description
Page
Data Center 3.0
Components
Virtualization, Unified Fabric, and
Unified Computing
126
Data Center 3.0
To p o l o g y C o m p o n e n t s
Virtualized servers, consolidated
connectivity, and network devices
127
Challenges in the DC
Power, space, security, and
management
127
Data Center Facility
Aspects
Architectural and mechanical specifi-
cations, environmental conditions,
physical security, capacities and
compliance
129
Data Center Power
Cooling, server, storage, and network
131
Data Center Cabling
Controls the temperature and humidity
of the devices
133
DC Access Layer
Provides Layer 2 and Layer 3 physical
port density for devices
136
DC Aggregation Layer
Aggregates L2/L3 links from the ac-
cess layer and connects using upstream
links to the data center core
138
DC Core Layer
Centralized Layer 3 routing layer in
which one or more data center
aggregation layers connect
139
