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PowerStore: CPU utilization level too high. Reduce system load prior to NDU. (cpu_usage_level_exceeded)

Summary: Running a pre-upgrade health check (PUHC) may return a warning "CPU utilization level too high. Reduce system load prior to NDU. (cpu_usage_level_exceeded)"

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.
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Symptoms

Running a pre-upgrade health check (PUHC) from Settings > Upgrades > HEALTH CHECK, may result in a warning as shown here:

CPU utilization level too high. Reduce system load prior to NDU. (cpu_usage_level_exceeded)



As seen from PowerStore Manager:

image.png
 

Cause

The existing checks used to find CPU usage include management and platform CPU cores. The result is that, on an idle system, it sometimes catches one of those cores running at over 50% and it fails the check.
 

Resolution

Most of these warnings are false positives, but careful verification should be carried out in order to avoid possible upgrade issues.

In order to confirm if this CPU warning is a false positive or a real warning, go to Hardware, then choose the appliance that is being marked for CPU issues. Go to the PERFORMANCE tab, and check the CPU utilization details. The general guidance would be:
  • If the CPU utilization is around or below 50%, the upgrade may continue.
  • If the CPU utilization is over 50%, the upgrade should be deferred to a period when the system is less busy.
 

Fix

This issue is fixed in PowerStoreOS version 2.1.x.

Affected Products

PowerStore, PowerStore 1000X, PowerStore 1000T, PowerStore 3000X, PowerStore 3000T, PowerStore 5000X, PowerStore 5000T, PowerStore 500T, PowerStore 7000X, PowerStore 7000T

Products

PowerStore 9000X, PowerStore 9000T
Article Properties
Article Number: 000192018
Article Type: Solution
Last Modified: 03 Nov 2022
Version:  6
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