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ESXi host showing 100% memory utilization

Created by Brian O'Donovan, last modified by Kevin Twomey on Sep 20, 2018

Views: 1,305 Votes: 2 Revisions: 5

Updated 19th September

 

Overview

This article describes the issue with ESXi Host when it displays 100% memory utilization. 

Environment

All versions of NPM 

Cause 

This issue occurs when the information provided by the device via SNMP is incorrect. 

For example:

Total Memory is got from this OID: 1.3.6.1.4.1.6876.3.2.1.0

Used Memory From Each Process is got from 1.3.6.1.2.1.25.5.1.1.2.<index>

Total Used Memory is the sum of all the esults for 1.3.6.1.2.1.25.5.1.1.2.index

% Utilization = Total Used Memory / Total Memory * 100

 

In this instance, Total Used Memory is approximately equal to Total Memory making the result of 100% in Orion is correct. The issue is that the values from the device are incorrect

Resolution

You need to poll the ESXi host via VMware API.

Suggested tags: esx memory

 

Reason for Rework or Feedback from Technical Content Review: 

 

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