Node Health Status

The status of a node is determined by the health status of the following components:

■   Ports
■   Cards
■   Fan Trays
■   Power Modules
■   Memory utilization
■   CPU utilization

The health of a port and a fan depends on the health status of its associated components. For example, the health of a card depends on the port health. If more than 50% of the ports in a card are up and the operational status of the card is also up, then the card is determined as healthy (green). Similarly, the health of a fan depends on the operational status of the fan tray.

Note:  GigaVUE‑FM computes the health status of the node based on FanChange and PowerChange traps and the same is reflected in GigaVUE‑FM GUI. The card health status is computed based on ModuleChange trap and the same is reflected in GigaVUE‑FM GUI.

A node is considered unhealthy if:

■   at least 50% of the cards are down
■   at least 50% of the ports in a card are down
■   at least 1 power module is down
■   the average memory usage over the past one hour is more than 70%
■   the CPU load per core is more than 50% overloaded

The change in the health status of a node is indicated in Events.

The cluster health is determined by the health status of the devices associated to the cluster.

The health status of a node is indicated by the following colors:

Color

Health Status

Green

Up (connected, healthy)

Amber

Warning

This state is displayed when the operational status of the card is up and 50% of the associated ports are up.

Red

Down (disconnected), unreachable

Gray

Unknown

This state is displayed when newly added nodes are yet to be discovered by GigaVUE‑FM.

GigaVUE-FM determines the health state of the ports and devices based on the following SNMP traps, which are enabled by default when the fabric manager initializes:

  • Packet Drop
  • GigaSMART Packet Drop
  • Packet Error
  • Port Utilization
  • Low Port Utilization
  • GigaSMART Port Utilization
  • GigaSMART Port Low Utilization
  • System Memory Threshold
  • Process Memory Threshold

GigaVUE-FM determines the health status of the devices based on the receipt of the traps mentioned above:

  • If GigaVUE-FM receives any of the traps mentioned above: Port state is set to yellow or red.
  • If the traps are not received within the configured interval specified in the SNMP Throttling Page: Port state is set to green.

Note:  You must configure the throttling interval in the SNMP Throttling page for the traps mentioned above. Otherwise, GigaVUE-FM cannot determine the health status of the ports.