Browse Prior Art Database

DASD Arm Buffers

IP.com Disclosure Number: IPCOM000053223D
Original Publication Date: 1981-Sep-01
Included in the Prior Art Database: 2005-Feb-12

Publishing Venue

IBM

Related People

Authors:
Hunter, DW [+details]

Abstract

A new design for full track direct-access storage device (DASD) buffers is described which improves the performance by increasing the operational overlap. The DASD arm buffer consists of a memory package (RAM (random-access memory), CCD (charge-coupled device), magnetic bubbles, etc.) and related control circuitry dedicated to a single logical DASD device (i.e., a single device address). This usually consists of a single movable arm accessing a rotating magnetic medium.