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:
Jan. 10, 2012
Filed:
Apr. 27, 2009
Gal Ashour, Yokne'am Ilit, IL;
Kenneth Wayne Boyd, Tuscon, AZ (US);
Michael Factor, Haifa, IL;
Shachar Fienblit, Ein Ayala, IL;
Olympia Gluck, Haifa, IL;
Amiram Hayardeny, Beijing, CN;
Eli Malul, Tirat Carmel, IL;
Ifat Nuriel, Moshav Bet-Yosef, IL;
Noa Privman-horesh, Zichron Yaakov, IL;
Dalit Tzafrir, Haifa, IL;
Sam Clark Werner, Tucson, AZ (US);
Gal Ashour, Yokne'am Ilit, IL;
Kenneth Wayne Boyd, Tuscon, AZ (US);
Michael Factor, Haifa, IL;
Shachar Fienblit, Ein Ayala, IL;
Olympia Gluck, Haifa, IL;
Amiram Hayardeny, Beijing, CN;
Eli Malul, Tirat Carmel, IL;
Ifat Nuriel, Moshav Bet-Yosef, IL;
Noa Privman-Horesh, Zichron Yaakov, IL;
Dalit Tzafrir, Haifa, IL;
Sam Clark Werner, Tucson, AZ (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Generating a consistent point in time copy of data in a source volume and a target volume is achieved responsively to a first data modification request by writing a first altered version of the data onto a single source volume, asynchronously transferring the first altered version from the first storage site to a target volume located at a remote second storage site, while avoiding copying the first altered version onto other volumes at the first storage site. While asynchronously transferring the first altered version de-queuing a second modification request, and responsively to the second modification request synchronously transferring the first altered version from the first storage site to the target volume. Then a second altered version of the data is written to the single source volume and a copy transferred to the target volume in like manner.