DATA SET LEVEL MIRRORING TO ACCOMPLISH A VOLUME MERGE/MIGRATE IN A DIGITAL STORAGE SYSTEM
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United States of America Patent
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app pub date -
Dec 4, 2006
filing date -
Nov 18, 2003
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Abandoned
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Abstract
Users of Mainframe computers running under IBM's MVS operating systems have a need to merge migrate data from multiple smaller DASD devices (disk volumes) to larger DASD devices, and/or to migrate data in order to combine data set extents. A method is disclosed for migrating data where a volume merge is involved, and/or when combining of extents is desired, that minimizes the down time of applications using the involved data while satisfying MVS rules for volume and catalog meta-data files as well as data extent limitations. The method may be implemented such that source and target volumes need not be in like manufacturer DASD devices.
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