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Enable DPM. This starts the collection of statistics for drives attached to your RAID controller. (/cx dpmstat=on).
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Disable DPM. This stops the collection of statistics. (/cx dpmstat=off)
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Display a DPM Summary. This shows whether DPM is On or Off, and provides summary statistics for drives attached to a controller.
(/cx show dpmstat) |
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Display Specific Drive Statistic. On a per-port basis, you can display five different statistical reports:
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Running Average. Running average is a measure of long-term averages that smooth out the data, and results in older results fading from the average over time (/cx/px show dpmstat type=ra)
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Long Command Times. This a collection of the commands with the longest read/write response time. (/cx/px show dpmstat type=lct
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Histogram Data. The histogram categorizes the read/write execution times and group them together based on time frames.
(/cx/px show dpmstat type=histdata) |
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Extended Drive Statistics. The extended drive statistics refers to statistics of a drive's read commands, write commands, write commands with FUA (Force Unit Access), flush commands, and a drive sectors's read, write, and write commands with FUA.
(/cx/px show dpmstat type=ext) |
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Clear Individual Statistic Counters. On a per-port basis, you can clear specific statistic counters, using these commands:
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