Browse Prior Art Database

High Performance Storage Device

IP.com Disclosure Number: IPCOM000076016D
Original Publication Date: 1971-Dec-01
Included in the Prior Art Database: 2005-Feb-24
Document File: 2 page(s) / 41K

Publishing Venue

IBM

Related People

Evans, JR: AUTHOR [+2]

Abstract

The proposed storage device of the sketch is designed to bridge the cost/performance gap that exists between conventional disk drives and very high-performance fixed-head files or bulk memory storage devices.

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High Performance Storage Device

The proposed storage device of the sketch is designed to bridge the cost/performance gap that exists between conventional disk drives and very high-performance fixed-head files or bulk memory storage devices.

It is intended that the proposed high-performance storage device be used in applications where throughput is the main limitation on system performance. Examples of these applications include frequent access to operating systems modules and data base indices, paging, etc. The paging function is particularly useful in a virtual memory environment.

The objectives of the high-performance disk drive are met by combining the following hardware components: a disk drive 1 that has a multiplicity of recording surfaces 2; a movable comb access mechanism 3 that has a multiplicity of read/write heads 4 attached to each section of the access mechanism comb; a fixed-position access mechanism 5 that has a multiplicity of read/write heads 6 attached to it; and buffer 7 and control circuitry (not shown) in the control unit 8.

The advantages of this implementation are: 1) Information can be transferred directly from the main portion of the disk to the fixed portion of

the disk for rapid access by an associated processor

(not shown). 2) Frequently used information recorded on the fixed portion of drive can be retrieved without incurring

access motion time penalties. 3) Large amounts of information are available at each setting of the movable acc...