Browse Prior Art Database

Low Cost, Rack Mounted, Direct Access Disk Storage Device

IP.com Disclosure Number: IPCOM000087767D
Original Publication Date: 1977-Mar-01
Included in the Prior Art Database: 2005-Mar-03
Document File: 3 page(s) / 58K

Publishing Venue

IBM

Related People

Bakken, WP: AUTHOR [+4]

Abstract

This disk storage device is intended for application with small rack-mounted computer systems and is so packaged as to fit into a standard EIA (Electronic Industries Association) 19 X 25 inch rack. The device is completely self contained with logic, attachment electronics, power supplies, cooling, decorative front cover and operator panel.

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Low Cost, Rack Mounted, Direct Access Disk Storage Device

This disk storage device is intended for application with small rack-mounted computer systems and is so packaged as to fit into a standard EIA (Electronic Industries Association) 19 X 25 inch rack.

The device is completely self contained with logic, attachment electronics, power supplies, cooling, decorative front cover and operator panel.

Referring to the figure, the major structural member of the device therein shown consists of a base pan 1 and a vertical partition 2 that is rigidly attached to the base pan 1. Both are fabricated from sheet metal and welded together to form a strong, lightweight, supporting structure. It is upon this structure that all of the major machine components are mounted. Attached to the vertical partition 2, through vibration isolators 3, is an aluminum cast backbone 4 that, in turn, supports a fixed disk direct access storage device 5 and its drive motor 6. Storage device 5 may be of the type described in U. S. Patent 3,849,800; however, in order to package the magnetic disk enclosure into a desired 22 inch depth, the drive motor 6 is relocated to the opposite side of the backbone 4. Backbone 4 is also redesigned to accept the new motor location and is shortened to fit into the 22 inch depth. The vibration isolators 3 are also relocated from the positions shown in U. S. Patent 3,849,800 to balance the resulting weight distribution.

Logic gate 7 is located in the lower right front. Gate 7 houses the electronic logic, driver, and attachment electronic cards.

Fan 8 is mounted to the rear of gate 7 and pulls cooling air through the front of gate 7 and across the electronic cards. Some of the exhausting air is blown across power supply printed circuit board 9 to cool the components attached to it, and also some of the exhausting air is blown across transformer 10 and motor 6 for cooling purposes. Another fan 8a is mounted with respect to vertical partition 2 and draws air across storage device 5. Both fans 8 and 8a are driven by suitable electric motors (not shown).

The device is normally fitted into a rack. A decorative front cover 25 attaches to the front of...