SAxxx Storage Array Configuration Guide

This document is the SAxxx Storage Array Configuration Guide from Digital Equipment Corporation, published in December 1993.

It provides a comprehensive overview and detailed procedures for the SAxxx family of storage arrays, specifically covering models SA550, SA600, SA650, SA800, SA850, and SA900.

The manual describes:

• Characteristics and Technical Specifications: Details on the H9646 and H9A00 cabinets, various disk drives (RA7x, RA82, RA9x), ESE50 Solid State Disks, and TA8x7-Series Tape Subsystems, including their configurations and capacities.
• Installation Procedures: Steps for setting up the storage arrays, including site requirements, unpacking, cabinet assembly, connecting SDI cables, selecting line input voltage, and applying power.
• Maintenance and Modifications: Instructions for removing and replacing major cabinet components (I/O bulkheads, power controllers), and installing add-on storage devices (RA9x disk drives, ESE50 SSDs, SA7x enclosures, TA8x7 subsystems). It also details how to upgrade existing SA600/SA800 arrays to SA650/SA850 configurations.

Intended Audience: The guide is strictly for qualified Digital Multivendor Services engineers who have successfully completed specialized training in areas such as disk drive installation, electrostatic discharge (ESD) procedures, Digital Storage Architecture (DSA), and electrical safety. It explicitly warns against attempting procedures without this formal training to prevent injury or equipment damage.