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:
Jul. 04, 2006
Filed:
May. 23, 2002
Mohamad H. El-batal, Westminster, CO (US);
Yoshihiro Fujie, Fujisawa, JP;
Thomas Sing-klat Liong, San Jose, CA (US);
Krishnakumar Rao Surugucchi, Fremont, CA (US);
Mohamad H. El-Batal, Westminster, CO (US);
Yoshihiro Fujie, Fujisawa, JP;
Thomas Sing-Klat Liong, San Jose, CA (US);
Krishnakumar Rao Surugucchi, Fremont, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
The present invention describes a method and system for interfacing a plurality of device controllers to an array of data storage devices by serial connection. The device controllers are coupled to a serial interface by a bus and the devices of the storage array are coupled to the serial interface by a serial connection. The serial interface receives controller signals through the bus and multiplexes the signals onto the serial connections of the storage array. Arbitration between the various device controllers seeking access to the storage array is resolved through bus protocol and through drive based reserve/release registers in the serial interface processor.