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CONTAP-377586: REST API documentation that provides calculation to determine the CPU utilization percentage is incorrect

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Category:
ontap-9
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perf
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Issue

  • The ONTAP REST API reference documentation provides a calculation to determine the percentage CPU utilization for the node:

Raw CPU Utilization for the node. This should be divided by the processor_utilization_base to calculate the percentage CPU utilization for the node

  • This calculation is not accurate and can return results of over 100% utilisation in applications like Checkmk.
  • This change updates the above definition with the correct calculation in the YAML file in ONTAP.
  • A documentation CONTAP will also be opened to update the following document with the correct calculation:

Retrieve the nodes in a cluster
  • Checkmk has also released a fix with the updated formula, which will fix the CPU reporting issue. Please see this link for the fix

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