Asynchronous tape backup and restore from tape backup in a disk storage environment
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United States of America Patent
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Aug 23, 2016
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N/A
app pub date -
Nov 19, 2014
filing date -
Nov 19, 2014
priority date (Note) -
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Abstract
A metadata object identifying a set of disk locations which have been written to during a consistency group is maintained. Backup data for the consistency group is written. Writing backup data for the consistency group includes identifying a disk location from the set of disk locations, generating a record containing the disk location, data stored at the disk location, and a consistency group value identifying the consistency group, and writing the record to tape storage. Records written to tape storage can be used to restore data to disk storage for a given consistency group.
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