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What health monitors are available

There are several health monitors that monitor different parts of a cluster.

Health monitor name (identifier) Subsystem name (identifier) Purpose
Cluster switch


Switch (Switch-Health) Monitors cluster network switches and management network switches for temperature, utilization, interface configuration, redundancy (cluster network switches only), and fan and power supply operation. The cluster switch health monitor communicates with switches through SNMP. SNMPv2c is the default setting.
Node connectivity


CIFS nondisruptive operations (CIFS-NDO) Monitors SMB connections to ensure nondisruptive operations to Hyper-V applications.
Storage (SAS-connect) Monitors shelves, disks, and adapters at the node level to ensure that they have appropriate paths and connections.
System not applicable Aggregates information from other health monitors.
System connectivity


Storage (SAS-connect) Monitors shelves at the cluster level to ensure that all shelves always have appropriate paths to two HA clustered nodes.