The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 24, 1998
Filed:
Sep. 29, 1995
Scott Bleiweiss, Upton, MA (US);
Brian Gallagher, Marlboro, MA (US);
EMC Corporation, Hopkinton, MA (US);
Abstract
A fibre channel disk drive operating system configures a plurality of disk drives into a fibre channel drive loop. The system also provides plurality of disk drive controllers, and a software controlled switching circuit electrically connecting the disk drive controllers to the disk drives which are arranged in the fibre channel drive loop in varying selected configurations. The switching circuit has a plurality of switch elements arranged for selectively electrically connecting each fibre channel drive loop to a selected controller. Each switch element in a first mode of operation passes electrical signals in a through direction and in a second mode of operation passes electrical signals in a second bypass direction. Thereby each fibre channel drive loop is electrically connected to a selected one of disk drive controllers prior to operation of the system.