Data ONTAP Discussions

Cpu avg vs Cpu busy vs Cpu total - need explanations

Hi !

 

I have many FAS 2552 HA pairs forming a cluster (1 HA pair = 1 cluster) and receive more and more "node resources over utilized" that I am trying to analyze.

 

I fired some "statics" commands and what I don't really understand is the difference between cpu avg and cpu busy.

 

What I think I understood is cpu avg is the avg utilization of all cpu .. but what about cpu busy ? In my case I see lots of differences between both counters, for instance I see regularly things like "cpu avg = 50%, cpu busy = 90 %. Could you please be very explicit and explain the cpu busy in simple words ?

 

Thank you in advance and please tell me if I missed some descriptions.

 

Kenshiro-san

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