HSC90/60 Storage Controllers

This document is an Illustrated Parts Breakdown (IPB) for the HSC90 and HSC60 Storage Controllers by Digital Equipment Corporation. It provides comprehensive diagrams and parts lists for major assemblies, including mechanical components, cabinet assemblies, power supply assemblies, and front door/OCP assemblies. The manual includes a complete index sorted by Digital Equipment part number for easy identification and ordering of replacement components. It is intended as a maintenance and reference guide for technicians.