High CPU utilization due to one specific HostOS domain process
Applies to
- ONTAP 9
- HostOS utilization
Issue
- High CPU on node due to HostOS domain, Running
sysstat -Mcommand shows high host domain utilization.- Note: High CPU usage does not always indicate a problem and can be expected based on system utilization.
- Sample output focusing on high host Domain:
AVG CPU0 CPU1 CPU2 CPU3 CPU4 CPU5 CPU6 CPU7 Nwk_Lg Nwk_Exmpt Storage Raid WAFL_Ex(Kahu) Exempt SSAN_Ex Intr Host Ops/s
65% 47% 43% 45% 75% 67% 75% 67% 71% 15% 10% 15% 4% 211%( 14%) 180% 161% 5% 335% 8911
89% 80% 84% 83% 93% 90% 91% 91% 91% 17% 11% 12% 6% 190%( 12%) 200% 145% 8% 428% 9796
74% 61% 59% 60% 82% 76% 79% 80% 78% 20% 13% 14% 5% 212%( 14%) 208% 148% 7% 456% 8805
76% 67% 60% 59% 82% 80% 81% 78% 79% 17% 12% 15% 6% 231%( 15%) 174% 157% 6% 388% 9663