Invention Grant
US07657719B2 Controller for a copy operation between a host computer and hard disks, a control method thereof, and a recording medium storing a program for executing the control method
有权
用于主计算机和硬盘之间的复制操作的控制器，其控制方法和存储用于执行控制方法的程序的记录介质
- Patent Title: Controller for a copy operation between a host computer and hard disks, a control method thereof, and a recording medium storing a program for executing the control method
- Patent Title (中): 用于主计算机和硬盘之间的复制操作的控制器，其控制方法和存储用于执行控制方法的程序的记录介质
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Application No.: US11394221Application Date: 2006-03-31
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Publication No.: US07657719B2Publication Date: 2010-02-02
- Inventor: Koji Uchida , Hideaki Omura , Tsutomu Akasaka
- Applicant: Koji Uchida , Hideaki Omura , Tsutomu Akasaka
- Applicant Address: JP Kawasaki
- Assignee: Fujitsu Limited
- Current Assignee: Fujitsu Limited
- Current Assignee Address: JP Kawasaki
- Agency: Staas & Halsey LLP
- Priority: JP2005-365545 20051219
- Main IPC: G06F12/16
- IPC: G06F12/16
Abstract:
A disk array device includes a controller that sets a session pertaining to a copy source disk and a copy destination disk, and without copying the entire data that is recorded in the copy source disk to the copy destination disk, copies to the copy destination disk only the data that is recorded in a data space for writing. Further, if data for reading does not exist in the copy destination disk, the controller searches data from the copy source disk and transfers the searched data to a host computer.
Public/Granted literature
- US20070143554A1 Controller, copy control method, and computer product Public/Granted day:2007-06-21
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