Chapter 3. Data Centers
3.1. Introduction to Data Centers
A data center is a logical entity that defines the set of resources used in a specific environment. A data center is considered a container resource, in that it is comprised of logical resources, in the form of clusters and hosts; network resources, in the form of logical networks and physical NICs; and storage resources, in the form of storage domains.
A data center can contain multiple clusters, which can contain multiple hosts; it can have multiple storage domains associated to it; and it can support multiple virtual machines on each of its hosts. A Red Hat Enterprise Virtualization environment can contain multiple data centers; the data center infrastructure allows you to keep these centers separate.
All data centers are managed from the single Administration Portal.
![Data Centers](https://access.redhat.com/webassets/avalon/d/Red_Hat_Enterprise_Virtualization-3.6-Administration_Guide-en-US/images/200a1a75c4d456781c9de0b137b6b911/523.png)
Figure 3.1. Data Centers
Red Hat Enterprise Virtualization creates a default data center during installation. You can configure the default data center, or set up new appropriately named data centers.
![Data Center Objects](https://access.redhat.com/webassets/avalon/d/Red_Hat_Enterprise_Virtualization-3.6-Administration_Guide-en-US/images/8fe1ce052c9dcd6ccc9bec1750ce48c0/179.png)
Figure 3.2. Data Center Objects