| Feature | Product | Release introduced | 
|---|---|---|
| Key Health Indicator (KHI) | 5320 Series | Fabric Engine 8.6 | 
| 5420 Series | VOSS 8.4 | |
| 5520 Series | VOSS 8.2.5 | |
| 5720 Series | Fabric Engine 8.7 | |
| 7520 Series | Fabric Engine 8.10 | |
| 7720 Series | Fabric Engine 8.10 | |
| VSP 4900 Series | VOSS 8.1 | |
| VSP 7400 Series | VOSS 8.0 | 
The Key Health Indicators (KHI) feature provides a subset of condition information that allows for quick assessment of the overall operational state of the device.

Note
KHI was not designed to provide a comprehensive debugging solution. Instead, KHI identifies key information that could lead support personnel towards discovery of a specific failure. After the technician assesses the KHI information, further debugging is required to determine the specific reason for the fault.
Capture KHI information during normal operations to provide a baseline for support personnel when detecting fault situations.