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. 03, 2001
Filed:
Mar. 15, 1999
Jeffrey L. Williams, Rochester, MN (US);
Western Digital Corporation, Lake Forest, CA (US);
Abstract
The present invention provides a disk drive system employing a method of analyzing disk drive failure wherein a disk drive target controller is logically connected to an initiator on a SCSI bus. The method includes storing SCSI bus state information upon the receipt of a SCSI bus reset condition. SCSI bus state information is maintained, wherein the SCSI bus state information corresponds to the logical connection between the initiator and the disk drive target controller on the SCSI bus. A SCSI bus reset condition is detected. The maintained SCSI bus state information is stored upon detection of the SCSI bus reset condition. Actions are preformed to reset devices connected to the SCSI bus, including resetting the disk drive target controller. The SCSI bus state information can be subsequently analyzed to aid in determining the cause of the SCSI bus reset condition.