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Weekly IOPS peak is higher than monthly IOPS peak

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Created by Interspire Import, last modified by MindTouch on Jun 23, 2016

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Issue


This is by design. There are several rollups for samples: Latest, Hour, Day, Week, Month.
Here is an example:

  • Latest values are stored with every performance collection (e.g. every 10 minutes)
  • Hour value is equal to the max value of "Latest" values within the last hour (rollup is once every 1 hour)
  • Day value is equal to the max value of "Hour" values within the last day (rollup is once every 1 day)
  • Week value is equal to the max value of "day" values within the last week (rollup is once every 1 week)

So it's possible to have actual "Hour" value greater than actual "Latest" value as well as "Week" value greater than "Month" because these rollups are computed only once per defined period (day, week, etc.).

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