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:
Aug. 11, 1998
Filed:
Sep. 03, 1996
Dana H Brown, Rochester, MN (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A direct access storage device may handle various disk drive management functions without contemporaneous host computer involvement by buffering commands for the management functions in controller memory. The commands may be read into controller memory from the disk drive on power up or programmed by the host computer. Initially the commands are treated as processes in a blocked state. Operating statistics kept by a supervisor program for the controller are monitored by an event handler, which moves processes to a ready to run state upon occurrence of specified conditions. A dispatcher then moves commands into the direct access storage controller for execution and subsequent return to blocked status.