1.4. Storage

Red Hat Virtualization uses a centralized storage system for virtual disks, templates, snapshots, and ISO files. Storage is logically grouped into storage pools, which are comprised of storage domains. A storage domain is a combination of storage capacity and metadata that describes the internal structure of the storage. See Storage Domain Types

The data domain is the only one required by each data center. A data storage domain is exclusive to a single data center. Export and ISO domains are optional. Storage domains are shared resources, and must be accessible to all hosts in a data center.