Storage device volume selection for improved space allocation
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United States of America Patent
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Mar 12, 2019
Grant Date -
Oct 26, 2017
app pub date -
Apr 20, 2016
filing date -
Apr 20, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A computer program product, according to one embodiment, includes a computer readable storage medium having program instructions embodied therewith, the program instructions executable by a computer to cause the computer to: receive, by the computer, a data set allocation request; determine, by the computer, whether a size of the data set is greater than a threshold; use, by the computer, first key values in a first index to select a volume in response to determining that the size of the data set is greater than the threshold; use, by the computer, second key values in a second index to select a volume in response to determining that the size of the data set is less than the threshold; perform, by the computer, the allocation request in the selected volume; and store, by the computer, control data about the data set in the control data set corresponding to the selected volume.
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