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1.7. Data Centers
A data center is the highest level of abstraction in Red Hat Virtualization. A data center is a container that is comprised of three types of sub-containers:
- The storage container holds information about storage types and storage domains, including 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.
- The network container holds information about the data center's 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.
- The cluster container holds 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.
