FAS and V-Series Storage Systems Discussions

FAS 8040 frequent high CPU

Hello we are running Ontap 9.2

We are monitoring hardware performance and regularly during the day especially in afternoon hours we see spikes in CPU usage up to 90%

Is there a way to discover what the cause is?

We were running some commands 

priv set diag;statit -b

priv set diag;statit –e

sysstat -x

 

Attached are some results and comparison of 2 different results.

The spikes are for few seconds and goes down to 20%.

Thank you,

Martin

 

ANY  AVG  CPU0 CPU1 CPU2 CPU3 CPU4 CPU5 CPU6 CPU7

 44%  14%    9%   9%  10%   9%   7%   9%  30%  29%

 65%  20%   12%  11%  12%  13%   8%  11%  45%  45%

 43%  12%    7%   7%   7%   7%   5%   6%  29%  29%

 42%  11%    6%   5%   6%   6%   4%   5%  28%  28%

100%  73%   67%  72%  65%  69%  60%  67%  91%  91%

100%  71%   64%  67%  61%  63%  55%  75%  90%  90%

 99%  76%   71%  70%  69%  67%  63%  90%  89%  89%

100%  95%   94%  94%  94%  94%  94%  98%  98%  98%

 97%  63%   55%  55%  54%  53%  48%  81%  82%  81%

100%  56%   46%  42%  43%  37%  34%  79%  81%  82%

 87%  45%   33%  27%  41%  36%  37%  62%  61%  59%

 35%  12%    5%   5%  15%  15%  15%  14%  14%  14%

 30%  10%    3%   3%  12%  12%  12%  12%  11%  11%

 29%  10%    3%   3%  11%  12%  12%  12%  11%  12%

 38%  13%    5%   4%  16%  16%  16%  16%  16%  16%

 40%  14%    8%   6%  13%  14%  13%  13%  22%  21%

 73%  29%   22%  20%  20%  21%  14%  24%  55%  54%

 73%  26%   19%  23%  25%  20%  14%  19%  43%  43%

 

3 REPLIES 3

Re: FAS 8040 frequent high CPU

none of the 3 files attached is showing high CPU

Re: FAS 8040 frequent high CPU

Please take a look on attached chart. The CPU spikes keep repeating over the time.

Martin

 

Re: FAS 8040 frequent high CPU

Not enough detail here to really accurately fully diagnose. I would recommend opening a support case so we can pull performance archives.

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