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. 08, 2013
Filed:
Mar. 24, 2011
Atsushi Yuhara, Yugawara, JP;
Hiroshi Kuwabara, Fujisawa, JP;
Junichi Hiwatashi, Ooi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
One embodiment provides a computer system and data backup method which enable improvements in the response performance of a storage apparatus to a write request from a host apparatus. In a case where, during execution of same intra-enclosure copy processing, a primary storage apparatus receives a write request in which the data write destination is a storage area in a target range for the same intra-enclosure copy processing in a first primary volume in the primary storage apparatus, the primary storage apparatus transmits an advance notification storing an address of a storage area in a secondary storage apparatus which corresponds to the data write destination storage area designated in the write request to the secondary storage apparatus such that an on-demand copy is executed based on the advance notification in the secondary storage apparatus.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile