There are many ways to look at ESX host performance. This article focuses on quick assessment of the 4 main resources:
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Disk Space
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CPU
- Memory
- Network
Symptoms:
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The ESX host seems slow
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There are a lot of errors in the log files
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Accessing the ESX host over a SSH session is slow
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Operations performed on the ESX host time out
esx-health-integrity esx-slow-no-response-errors