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:
Jan. 13, 2004
Filed:
Oct. 06, 2000
David John Craft, Austin, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method and apparatus for configuring redundant array of independent disks (RAID) are disclosed. A RAID includes a processor tray having a host processor, and a drive tray having a bridge chip and multiple attachment chips. The attachment chips are connected to each other in a loop configuration. Each of the attachment chips, which is assigned with an unique node ID, is connected to a respective disk drive. The host processor can direct more than one attachment chip to participate, in various ways, to a single data transfer around the loop. This is accomplished by directing the data transfer to a specified node ID, after configuring all the other attachment chips with temporary alias node ID identical to the specified node ID to which the data transfer operation is directed.