This part introduces the IBM TS7700 R4.0 (IBM TS7700) family. The family consists of the IBM TS7760 disk-only virtualization solution, the IBM TS7760T (Tape Attached with TS4500 or TS3500 support). This part provides a detailed technical description of the architecture and components of the TS7700. In addition, the information that is needed to plan for the implementation is addressed. The information covers the TS7760, TS7760T, TS7720, TS7720T, and TS7740.