On the left is a stack of icons labeled "Recovery Appliance Users." Each depicts a user sitting at a desk in front of a desktop computer. The bottom icon is labeled "RASYS." An arrow extends from each user icon to the right. In the center of the diagram is a large cylinder icon representing a database. Inside this cylinder is a box labeled "Recovery Appliance Schema." Inside this box is a smaller box labeled "Recovery Catalog." Inside this smaller box are two smaller boxes labeled "VPC." The top user icon points right to the top "VPC" box. The middle user icon points right to the lower "VPC" box. The RASYS icon points to the Recovery Appliance Schema box.