发明申请
- 专利标题： COMPUTER AND METHOD FOR CONTROLLING COMPUTER
- 专利标题（中）： 用于控制计算机的计算机和方法
-
申请号： US13510813申请日： 2012-04-25
-
公开(公告)号： US20130290623A1公开(公告)日： 2013-10-31
- 发明人: Etsutaro Akagawa , Takaki Nakamura , Masayuki Yamamoto
- 申请人： Etsutaro Akagawa , Takaki Nakamura , Masayuki Yamamoto
- 专利权人： Hitachi ,Ltd.
- 当前专利权人： Hitachi ,Ltd.
- 国际申请： PCT/JP2012/002833 WO 20120425
- 主分类号： G06F12/16
- IPC分类号： G06F12/16 ; G06F12/02
摘要：
Recently, along with the increase in the importance of data protection, there are increasing demands for constructing a computer system capable of protecting data even when widespread disaster occurs. In order to reduce the risk of data loss even when widespread disaster occurs, the present invention computes the risk of data loss for each replication relationship of data (combination of storage subsystems storing the same data), and allocates data so that the risks of losing data of all replication relationships are optimized.