The environment described in this architecture is one main data center containing 5,000 VMs and 100 physical servers. Each VM and physical server has an average of 200 GB of used storage space. All backups will be targeted to a local primary backup repository and copied to a secondary offsite location. Proxies are installed on a physical server and use the network transport (NBD) method. The backup target will be servers with a Hitachi Vantara VSP SAN Attached array.