RM80 Disk Subsystem

This document outlines the key features and technical specifications of the RM80, Digital's first fixed media Winchester Technology disk drive. The RM80 is a medium-capacity drive designed for use with VAX 11/750 and 11/780 systems. Key highlights include:

• Capacity and Performance: 124 MByte formatted capacity with a 33.3 ms average access time.
• Technology: Utilizes Winchester Fixed Media technology for increased recording density and reliability.
• Design: Features a clamshell architecture, lightweight head suspension, and a rotary actuator for improved access times.
• Maintenance: Includes microprocessor-controlled on-board diagnostics for fast fault isolation, hinged modules for easy access, and a slide-out bus adapter. The system is designed to require no scheduled preventive maintenance by Digital personnel.