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COPYING DATA FROM MULTIPLE POINT-IN-TIME COPIES TO A LOG STORAGE TO USE TO ROLL-BACK A SOURCE STORAGE
COPYING DATA FROM MULTIPLE POINT-IN-TIME COPIES TO A LOG STORAGE TO USE TO ROLL-BACK A SOURCE STORAGE
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机译:将多个时间点副本中的数据复制到日志存储中,以用于回滚源存储
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摘要
Provided are a computer program product, system, and method for copying data from multiple point-in-time copies to a log storage to use to roll-back a source storage managing point-in-time copies of a source storage. A plurality of point-in-time copies of a source storage at different point-in-times are established. In response to receiving writes to the source storage after establishing each of the point-in-time copies, point-in-time data in the source storage is copied, before being updated by the received writes, to a log storage, wherein the log storage stores point-in-time data for multiple of the point-in-time copies. The log storage is used to roll-back the source storage to a selected point-in-time of one of the point-in-time copies.
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