Method of, and apparatus for, detection of degradation on a storage resource
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United States of America Patent
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Jan 19, 2016
Grant Date -
Dec 4, 2014
app pub date -
May 30, 2013
filing date -
May 30, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A method of monitoring the performance of a device is presented, each storage device being operable to receive storage requests and includes a queue for incoming storage requests and a physical storage medium, the method includes: a) obtaining data relating to the device parameters of: throughput of storage requests to the storage device; queue time for one or more requests on the storage device; and the time required to complete one or more storage requests on the storage device; b) generating a model relating to the expected distribution of the device parameters on the storage device during normal operation; c) monitoring the parameters during operation of the storage device; d) comparing the distribution of the monitored parameters during operation of the storage device with the expected distribution of the parameters; and e) identifying a fault on the storage device based on the comparison.
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