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:
Mar. 08, 2005
Filed:
Nov. 14, 2002
Toshimi Ataku, Sagamihara, JP;
Paul Merrill Greco, Tucson, AZ (US);
Hiroshi Itagaki, Yokohama, JP;
Glen Alan Jaquette, Tucson, AZ (US);
Hironobu Nagura, Kawasaki, JP;
Toshiyuki Shiratori, Komae, JP;
Toshimi Ataku, Sagamihara, JP;
Paul Merrill Greco, Tucson, AZ (US);
Hiroshi Itagaki, Yokohama, JP;
Glen Alan Jaquette, Tucson, AZ (US);
Hironobu Nagura, Kawasaki, JP;
Toshiyuki Shiratori, Komae, JP;
International Business Machines Corporation, Armonk, NY (US);
Abstract
Special fields for error recovery are provided in data set information tables of data sets written with synchronized transactions. If a transaction only partially fills a data set, that data set is rewritten in a succeeding data set, appending the next transaction. A moving access point in the table identifies the appended transaction, allowing the rewritten transaction to be skipped during read recovery. The table provides recovery trails by providing a thread to tie the data sets together, the status of the data set, and pointers, such as identifying the wrap of the immediately succeeding data set.