The following parameters determine the primary node:
Node state
The node state must be STANDBY to participate in leader election and be selected as
primary. If the node is in the INIT, DOWN, or FAIL states, it cannot participate in leader
election. For more information about the node states, see Viewing Node Status.
Configuration priority
This is a user assigned priority. The configured priority is compared only after the
node meets the minimum thresholds in each category for it to be healthy. Required
processes and devices must not fail.
Software health
This represents the percent of processes available.
Health of secondary hardware components
This represents the health of the switch components, such as power supplies, fans, and
so forth.
