Browse Prior Art Database

Disk Drive With Multiple Spindles

IP.com Disclosure Number: IPCOM000102442D
Original Publication Date: 1990-Nov-01
Included in the Prior Art Database: 2005-Mar-17
Document File: 2 page(s) / 55K

Publishing Venue

IBM

Related People

Meyer, MD: AUTHOR [+4]

Abstract

Disclosed is a method to closely package multiple disk packs in a single direct access storage device (DASD) disk enclosure.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 100% of the total text.

Disk Drive With Multiple Spindles

       Disclosed is a method to closely package multiple disk
packs in a single direct access storage device (DASD) disk enclosure.

      The disk enclosure is arranged so that the disks from each
spindle are interleaved.  Two-, three- and four-spindle
configurations are shown in Fig. 1.

      Each spindle could be part of a subassembly (see Fig. 2)
consisting of the actuator(s) 1, spindle 2 and a frame 3. These
subassemblies ("children"), after servowrite and testing, could be
merged into a main-assembly ("mother") frame.  The "mother" could
locate each "child", support the airflow system, provide any
shielding required, and serve as an attachment for the cover
assembly.

      Counter-rotating spindles could be used with an even number of
spindles.  This could be implemented by mounting half the "children"
inverted.  Fig. 3 gives a view of a four-spindle system showing the
normally mounted "children" 1, the inverted units 2 and the cover
assembly 3.