Mapping locations of logical volume records on a physical stacked volume
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United States of America Patent
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Sep 20, 2016
Grant Date -
Oct 31, 2013
app pub date -
Jun 26, 2013
filing date -
May 6, 2010
priority date (Note) -
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Abstract
A system, method and computer program product for accessing host data records stored in a virtual tape storage (VTS) system. The computer program product includes a computer readable storage medium having computer readable program code embodied therewith. The computer readable program code includes computer readable program code configured to receive a mount request to access at least one host data record in a VTS system; computer readable program code configured to determine a starting logical block ID (SLBID) corresponding to the at least one requested host data record; computer readable program code configured to determine a physical block ID (PBID) that corresponds to the SLBID; computer readable program code configured to access a physical block on a magnetic tape medium corresponding to the PBID; and computer readable program code configured to output at least the physical block without outputting an entire logical volume that the physical block is stored to.
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