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NorthernNetGuy
Advisor
‎2020-01-14 12:22 PM

High I/O queue size and wait

I'm trying to do some optimization on my 5400 units, as we are usually at over 80% CPU and memory utilization, even hitting swap memory. While doing some digging in cpview I found that my I/O average changes quickly between about a 1000 wait and 7,000,000,000,000 wait. Absurdly large. also very large queue size of ~ 80,000,000

What should I do with this information?

 

2020-01-14_15h18_37.png

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