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:
Oct. 07, 1997
Filed:
Nov. 10, 1992
Robert Baird, San Jose, CA (US);
Thomas Beretvas, Poughkeepsie, NY (US);
Gerald Parks Bozman, Oakland, NJ (US);
Richard Roland Guyette, San Jose, CA (US);
Paul Hodges, San Jose, CA (US);
Alexander Stafford Lett, Mahopac, NY (US);
James Joseph Myers, San Francisco, CA (US);
William Harold Tetzlaff, Mount Kisco, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method for dynamically detecting loss of map integrity in a form of system-managed storage (SMS). In SMS, maps are used to define access paths to data and to allocate and reallocate storage resources among applications running thereon. The method steps include incorporating as an indivisible part of an overwriting commmand the duplication of map information by appending a portion of it to each data block in store, and detecting loss of map integrity as a function of a comparison mismatch between the portion stored with a counterpart data block and the map upon each read/write access.