System for managing data storage based on vector-summed size-frequency vectors for data sets, devices, and residual storage on devices
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United States of America Patent
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Sep 6, 1994
Grant Date -
N/A
app pub date -
Mar 11, 1991
filing date -
Mar 11, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for managing allocation of data sets among A plurality of storage devices of a computing apparatus such that the data set are allocated to a storage device whose uncommitted storage volume and access capability most nearly meet the requirement of the particular data set and the data sets are further allocated in such a way that access activity to the data sets will be distributed substantially uniformly across all the storage devices. The method comprises the steps of: (1) monitoring and recording data set access activity as a function of time: (2) calculating the data storage factor of each data set; (3) calculating a machine storage factor of each storage device; (4) calculating the residual storage factor of each storage device; (5) allocating the data set to a storage device that has sufficient available space and whose residual storage factor most nearly matches and exceeds the data storage factor of the data set being allocated.
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