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1.6. Data Centers

A data center is the highest level of abstraction in Red Hat Virtualization. A data center contains three types of information:

Storage
This includes storage types, storage domains, and connectivity information for storage domains. Storage is defined for a data center, and available to all clusters in the data center. All host clusters within a data center have access to the same storage domains.
Logical networks
This includes details such as network addresses, VLAN tags and STP support. Logical networks are defined for a data center, and are optionally implemented at the cluster level.
Clusters
Clusters are groups of hosts with compatible processor cores, either AMD or Intel processors. Clusters are migration domains; virtual machines can be live-migrated to any host within a cluster, and not to other clusters. One data center can hold multiple clusters, and each cluster can contain multiple hosts.
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