The IBM TotalStorage Enterprise Automated Tape Library (3495) is attached to host systems by a communications path to an IBM 3490 or 3490E control unit with the addition of a library attachment facility feature. The feature provides a microprocessor card and attachment cable for connection of each 3490 or 3490E control unit path to the library manager application. The equivalent of the library attachment facility is built into the control unit for an IBM 3590. See TotalStorage Automated Tape Library (3494) system attachment for more information concerning these systems.

The ATLDS (see Figure 1) is capable of supporting multiple control units and tape drives. The details for each callout in Figure 1 are explained in the text that follows. See Table 1 for more information concerning configuration capabilities, and TotalStorage Automated Tape Library (3494) system attachment for more details concerning the tape systems. For more detailed information regarding the hardware features of the IBM TotalStorage Enterprise Automated Tape Library (3495), see 3495 Tape Library Introduction and Planning Guide.

Figure 1. IBM TotalStorage Enterprise Automated Tape Library (3495)