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:
Nov. 07, 2006
Filed:
May. 05, 2004
Helena Cornelia Burton, Vail, AZ (US);
Michael E Factor, Haifa, IL;
Timothy Alan Griffin, Tucson, AZ (US);
Thomas Charles Jarvis, Tucson, AZ (US);
William Frank Micka, Tucson, AZ (US);
Yoram Novick, Cupertino, CA (US);
Gail Andrea Spear, Tuscon, AZ (US);
Sam Clark Werner, Tucson, AZ (US);
Helena Cornelia Burton, Vail, AZ (US);
Michael E Factor, Haifa, IL;
Timothy Alan Griffin, Tucson, AZ (US);
Thomas Charles Jarvis, Tucson, AZ (US);
William Frank Micka, Tucson, AZ (US);
Yoram Novick, Cupertino, CA (US);
Gail Andrea Spear, Tuscon, AZ (US);
Sam Clark Werner, Tucson, AZ (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A target data storage system comprises a peer-to-peer communication link interface for linking the target to a source data storage system, and data storage for storing point in time copy data received from the source via the peer-to-peer communication link interface. Information is established at the target relating logical identification of the point in time copy data to point in time copy data stored at the target and to point in time copy data stored at the source, such that the information references the data storage system having requested point in time copy data. A controller of the target accesses requested point in time copy data at the target if the table indicates that the requested point in time copy data is available at the target; else obtains the requested point in time copy data from the source via the peer-to-peer communication link interface.