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:
Feb. 28, 1995
Filed:
Mar. 30, 1992
David A Elko, Poughkeepsie, NY (US);
John F Isenberg, Jr, Poughkeepsie, NY (US);
Allan S Meritt, Poughkeepsie, NY (US);
Brian B Moore, Poughkeepsie, NY (US);
Jeffrey M Nick, Fishkill, NY (US);
William C Shepard, Hyde Park, NY (US);
David H Surman, Milton, NY (US);
Michael D Swanson, Poughkeepsie, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
In a multi-system complex having central processing complexes (CPCs) and subsystems, a hardware facility for prompt interdicting I/O and message operations. A CPC or subsystem failure causes as interruption in the availability of the data bases to the attached network of terminals. Often such networks have thousands of terminals. Even a short loss of data is detrimental. Therefore the CPC or subsystem takeover must be accomplished as quickly as possible and the I/O attached to the failing CPC or subsystem must be interdicting to release it for use to the rest of the complex. The disclosed hardware facility provides a mechanism which is program initiated and controlled and which guarantees the prompt completion of the interdiction function.