Browse Prior Art Database

Disk Storage File Actuator Instruct Prioritization Circuitry

IP.com Disclosure Number: IPCOM000067356D
Original Publication Date: 1979-Jul-01
Included in the Prior Art Database: 2005-Feb-20

Publishing Venue

IBM

Related People

Authors:
Pertzborn, JJ [+details]

Abstract

Disk storage drives utilized in computer systems can have several actuators for positioning the transducers for read/write operations. The actuators are instructed by other elements of the computer system. Further, the actuators share common control hardware. Once the actuators are instructed, the determination as to which actuator is utilized in the common hardware is accomplished by rotational position sensing. Such an arrangement provides the disk storage file attachment with the greatest effective data throughput rate. As the number of actuators controlled by common hardware increases, the effective system data throughput rate is a function of system probability of instructing an actuator to read/write. It has been the practice to assign a fixed priority to each actuator.