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:
Mar. 02, 2004
Filed:
Mar. 30, 2001
Walter W. Alexander, III, Santa Clara, CA (US);
Wesley H. Stelter, San Bruno, CA (US);
Robert G. Campbell, Cupertino, CA (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
The present invention includes an integrated circuit that is operable to connect a redundant array of inexpensive disks (RAID) or other peripheral device to a disk controller, such as a small computer system interface (SCSI) controller in a host device. The integrated circuit provides the peripheral device with sole access to the disk controller when operating in a straight mode. In straight mode, the peripheral device may communicate with the disk controller through a PCI bus to perform operations, such as retrieving or writing data to the peripheral device. Also, when in straight mode, other controllers, including the host's CPU, may be prevented from using the disk controller to avoid data collisions, data loss and possible system failure. The integrated circuit may also function in standard mode, such that other controllers connected to the host may access the disk controller.