- Ontap 9
- Ontap 7-mode
- Active IQ
- CPU/DISK utilization
Peak performance line represent limit after which response time (latency) may go above optimal values. It is calculated value based on complex internal algorithm.
After resource ( CPU/DISK ) utilization reach peak performance line, the latency can rapidly increase.
Difference between current utilization and peak performance line represent performance capacity (HEADROOM).
To understand if the issue is based on CPU/DISK utilization see following KB: