发明申请
- 专利标题： Apparatus, system, and method for synchronizing an asynchronous mirror volume using a synchronous mirror volume
- 专利标题（中）： 使用同步镜像卷同步异步镜像卷的装置，系统和方法
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申请号： US10838767申请日： 2004-05-04
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公开(公告)号： US20050251633A1公开(公告)日： 2005-11-10
- 发明人: William Micka , Gail Spear , Sam Werner
- 申请人： William Micka , Gail Spear , Sam Werner
- 主分类号： G06F12/16
- IPC分类号： G06F12/16
摘要：
An apparatus, system and method for synchronizing an asynchronous mirror volume using a synchronous mirror volume by tracking change information when data is written to a primary volume and not yet written to an asynchronous mirror, and storing the change information on both the primary storage system and the synchronous mirror system. In the event the primary storage system becomes unavailable, the asynchronous mirror is synchronized by copying data identified by the change information stored in the synchronous mirror system and using the synchronous mirror as the copy data source.
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