Method and apparatus for using system traces to characterize workloads in a data storage system
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United States of America Patent
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Jul 31, 2001
Grant Date -
N/A
app pub date -
Feb 12, 1999
filing date -
Feb 12, 1999
priority date (Note) -
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Abstract
I/O activity of a data storage system is characterized by collecting system traces generated during the I/O activity, grouping records in the system traces according to stores, identifying I/O activity in streams corresponding to the stores, and processing the groups of records to characterize I/O activity for the streams. The stores represent units of storage such as logical drives, single data storage devices and groups of data storage devices in the data storage system. Characterizations of the I/O activity may be used to re-allocate data across the data storage system.
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