Invention Grant
- Patent Title: Storage system and data replication method that refuses one or more requests for changing the first logical configuration information until the first storage apparatus and second storage apparatus are synchronized
- Patent Title (中): 存储系统和数据复制方法，其拒绝改变第一逻辑配置信息的一个或多个请求，直到第一存储装置和第二存储装置同步
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Application No.: US11510568Application Date: 2006-08-28
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Publication No.: US08285824B2Publication Date: 2012-10-09
- Inventor: Shoji Kodama , Junji Ogawa
- Applicant: Shoji Kodama , Junji Ogawa
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Antonelli, Terry, Stout & Kraus, LLP.
- Priority: JP2006-179430 20060629
- Main IPC: G06F7/00
- IPC: G06F7/00 ; G06F13/00 ; G06F13/12 ; G06F15/16 ; G06F15/177
Abstract:
A storage system has two storage apparatuses. Those storage apparatuses include a logical configuration information of a data storage area, an identification unit that identifies one or more requests for changing the logical configuration information from among one or more requests sent from the host system and a transmission unit. When the identification unit identifies to change data, a first storage apparatus updates its own configuration information and the transmission unit sends each of the one or more requests for changing the first logical configuration information to a second storage apparatus. When the second storage apparatus receives the requests, the second storage apparatus updates its own logical configuration information based on the one or more requests for changing.
Public/Granted literature
- US20080005288A1 Storage system and data replication method Public/Granted day:2008-01-03
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