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:
Jun. 01, 2004
Filed:
Dec. 21, 2001
Craig B. Johnson, Shoreview, MN (US);
Dennis R. Konrad, Welch, MN (US);
Michael C. Otto, Stillwater, MN (US);
Unisys Corporation, Blue Bell, PA (US);
Abstract
A disk cache translation system for mapping data record lengths between systems having different data record lengths. Command queue ( ) maps into initiation queue ( ) to allow I/O manager ( ) to manage I/O requests from operating system ( ). I/O requests are statused by I/O manager ( ) using status queue ( ). Store-thru cache ( ) provides a single interface to disk array ( ) such that disk array write operations are reported complete only when user memory ( ), I/O cache ( ) and disk array ( ) are synchronized. Data record length translations are performed using I/O cache ( ) in order to align data record length differences between operating system ( ) and I/O device ( ).