This part introduces the IBM TS7700 R3.3 (IBM TS7700) family. The family consists of the IBM TS7720 disk-only virtualization solution, the IBM TS7720T (Tape Attached), and the IBM TS7740. 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 TS7720, TS7720T, and TS7740.