5190/5194 Modular Tape Subsystem Manual

Introduction to the Modular Tape Subsystem
5190/5194 Modular Tape Subsystem Manual—426878-002
1-8
The Modular Storage System
The Modular Storage System
The modular storage system provides a framework for housing the modular tape
subsystem and other storage devices. This framework consists of low-cost,
common-form-factor modules that can be vertically stacked in an external support
structure. Each module in the modular storage system is self-contained in terms of
cooling and power distribution. Therefore, you can stack cartridge tape, open-reel
tape, and disk modules in the same support structure, and you can add and remove
modules from the stack as necessary.
Figure 1-3 on page 1-7 shows one tape drive module, containing two drive CRUs,
supported by a 7150 pedestal. In this configuration, the tape drives are fairly low: the
7150 pedestal is 43.3 cm (17 inches) high. To raise the tape drives for easier access,
you can use the 7159 pedestal, which is 8.13 cm (3.2 inches) higher, or you can add a
7158 frame between the 7150 pedestal and the tape drive module. The 7158 frame
would add 38.4 cm (15.12 inches) to the height of the tape drives. Figure 1-4 shows a
stack of two tape drive modules supported by a pedestal.
The support structure for each module consists of vertical and horizontal support
members that form a load-bearing frame for the storage modules. Up to three tape
drive modules can be stacked in one support structure.
The pedestal provides casters and leveling legs for the structure. Power and I/O
cables are routed through the rear vertical support members, simplifying cable routing.