RA60 205-Mbyte Removable-Media Disk Drive

This document introduces the RA60, a 205-Mbyte removable-media disk drive designed for high performance, reliability, and data integrity. It details the drive's engineering innovations, including a fully embedded servo for head positioning, which eliminates the need for periodic alignment and improves media interchangeability. The RA60 implements the Digital Storage Architecture (DSA) and utilizes the Standard Disk Interconnect (SDI) for connection to intelligent controllers. Key highlights include:

• Capacity & Design: 205 MB of formatted user-accessible data in a compact 10.5-inch rack-mount form factor.
• Performance: Features advanced seek time reordering and rotational latency optimization, providing performance that often exceeds hardware specifications.
• Maintainability: Designed for high reliability with modular field-replaceable units (FRUs) and minimal maintenance requirements.
• Connectivity: Supports dual access for controller redundancy and uses a radial connection scheme to improve subsystem availability.