US Patent 7430637 Storage system and storage control method

Patent 7430637 was granted and assigned to Hitachi on September, 2008 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

Hitachi

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

74306370

Patent Inventor Names

Shogo Mikami0

Date of Patent

September 30, 2008

Patent Application Number

111296190

Date Filed

May 13, 2005

Patent Primary Examiner

‌

Gary J Portka

Patent abstract

A storage system has a cache memory, a side-file being a storage area prepared in memory, and a copy source storage device. Each time write data is received, the storage system writes the write data to the copy source storage device via the cache memory, and also writes the received write data to the side-file. The storage system sends the plurality of write data accumulated in the side-file to another storage system at a certain timing. Thus, the plurality of write data stored in the copy source storage device is written to the copy destination storage device in the other storage system.