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High CPU utilization in HOST domain

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492
Visibility:
Public
Votes:
0
Category:
data-ontap-8
Specialty:
perf
Last Updated:

Applies to

  • ONTAP 8.2 or newer

Issue

  • High CPU on one node.
  • Running sysstat -M shows high host domain utilization compared to other domains:

ANY1+ ANY2+ ANY3+ ANY4+ ANY5+ ANY6+ ANY7+ ANY8+  AVG CPU0 CPU1 CPU2 CPU3 CPU4 CPU5 CPU6 CPU7 Nwk_Excl Nwk_Lg Nwk_Exmpt Protocol Cluster Storage Raid Raid_Ex Target Kahuna WAFL_Ex(Kahu) WAFL_XClean SM_Exempt Cifs Exempt SSAN_Ex Intr Host  Ops/s   CP
100%  100%   98%   97%   93%   87%   76%   63%  89%  89%  91%  91%  91%  90%  88%  86%  87%       4%     7%       45%       0%      0%      6%   2%      6%     5%    42%     52%( 35%)          0%        0%   0%     9%      9%   6% 520%   6571   0%

Note: This is not related to slowness as CPU usage is always a symptom, but without a problem is not good or bad, it just is there. If unsure, Please contact NetApp Technical Support and reference this article for further assistance.

 

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