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    • 9. 发明授权
    • Storage array snapshots for logged access replication in a continuous data protection system
    • 用于连续数据保护系统中记录访问复制的存储阵列快照
    • US09323750B2
    • 2016-04-26
    • US13684656
    • 2012-11-26
    • Assaf NatanzonArieh DonDavid Meiri
    • Assaf NatanzonArieh DonDavid Meiri
    • G06F17/30G06F11/20
    • G06F17/30008G06F11/2069G06F11/2074G06F11/2082G06F2201/855
    • In one aspect, a method includes providing a continuous data protection system comprising a data protection appliance, a splitter and source volumes on a source side that are replicated to target volumes of a storage array on a target side by using a journal of write transactions; and enabling, in an image access mode, a rolling back of the target volumes on the target side from a first point in time to a selected point in time so that the target volumes contain data for the selected point in time. The selected point in time is earlier than the first point in time and the rolling back includes undoing write transactions in the journal subsequent to the selected point in time; enabling generation of a virtual snapshot of the target volumes for the selected point in time after rolling back the target volumes to the selected point in time; and enabling a user to access the virtual snapshot in the storage array at the selected point in time.
    • 一方面,一种方法包括提供连续的数据保护系统,其包括数据保护装置,源侧的分离器和源卷,其通过使用写入事务的日志复制到目标侧上的存储阵列的目标卷; 并且在图像访问模式下,使目标侧的目标卷从第一时间点到所选择的时间点回滚,使得目标卷包含所选择的时间点的数据。 所选择的时间点早于第一时间点,并且回滚包括在所选择的时间点之后的日志中撤销写入事务; 使得在将目标卷滚动到所选择的时间点之后,为所选择的时间点生成目标卷的虚拟快照; 并使用户能够在所选择的时间点访问存储阵列中的虚拟快照。