Apparatus, system, and method for switching a volume address association in a point-in-time copy relationship
    1.
    发明申请
    Apparatus, system, and method for switching a volume address association in a point-in-time copy relationship 失效
    用于在时间点复制关系中切换卷地址关联的装置,系统和方法

    公开(公告)号:US20070220312A1

    公开(公告)日:2007-09-20

    申请号:US11357375

    申请日:2006-02-17

    IPC分类号: G06F11/00

    CPC分类号: G06F11/2094 G06F11/2097

    摘要: An apparatus, system, and method are disclosed for switching a volume address association in a point-in-time copy relationship. A copy module creates a point-in-time copy structure of a source volume at a target volume. A migration module copies data from the source volume to the target volume. A detection module detects data corruption in the source volume. A switch module switches a logical volume address from a source volume address of the source volume to a target volume address of the target volume in response to detecting the data corruption, redirecting data reads and writes to the target volume. In one embodiment, a tracking module tracks a current target volume copy of source volume data and redirects an access for source volume data without the current target volume copy to the source volume.

    摘要翻译: 公开了一种用于在时间点复制关系中切换卷地址关联的装置,系统和方法。 复制模块在目标卷创建源卷的时间点复制结构。 迁移模块将数据从源卷复制到目标卷。 检测模块检测源卷中的数据损坏。 响应于检测到数据损坏,将数据读取和写入重定向到目标卷,交换机模块将逻辑卷地址从源卷的源卷地址切换到目标卷的目标卷地址。 在一个实施例中,跟踪模块跟踪源卷数据的当前目标卷副本,并将源卷数据的访问重定向,而不将当前目标卷拷贝重定向到源卷。