Explanation/Reference:
Explanation:
Use the FailureConditionLevel property to set the conditions for the Always On Failover Cluster Instance (FCI) to fail over or restart.
The failure conditions are set on an increasing scale. For levels 1-5, each level includes all the conditions from the previous levels in addition to its own conditions.
Note: The system stored procedure sp_server_diagnostics periodically collects component diagnostics on the SQL instance. The diagnostic information that is collected is surfaced as a row for each of the following components and passed to the calling thread.
1. system
2. resource
3. query process
4. io_subsystem
5. events
The system, resource, and query process components are used for failure detection. The io_subsytem and events components are used for diagnostic purposes only.
References: https://docs.microsoft.com/en-us/sql/sql-server/failover-clusters/windows/configure- failureconditionlevel-property-settings