Skip to main content
NetApp Knowledge Base

Why are all nodes not listed in certain subsystems when running 'health subsystem show'?

Views:
71
Visibility:
Public
Votes:
0
Category:
ontap-9
Specialty:
core
Last Updated:

Applies to

  • Ontap 9
  • FAS/AFF systems

Answer

  • Some HM (health monitor) subsystems are running on all nodes in the cluster.
  • Other HM subsystems only run on one node. 
  • This is because there are node-level HM processes and cluster-level HM processes.
  • Cluster-level HM subsystems only run on one node (and may move around to another nodes, if necessary).  Node-level HM processes run on each node in the cluster.
  • As such, this is expected behavior.

Additional Information

  • Example of Cluster-level HM subsystem:
     

Cluster::> health subsystem show
Subsystem: FHM-Switch
Health: ok
Initialization State: initialized
Number of Outstanding Alerts: 0
Number of Suppressed Alerts: 0
Node: cluster-02
Subsystem Refresh Interval: 1h

Subsystem: FHM-Bridge
Health: ok
Initialization State: initialized
Number of Outstanding Alerts: 0
Number of Suppressed Alerts: 0
Node: cluster-02
Subsystem Refresh Interval: 1h

  • Example of node-level HM subsystem:

Subsystem: MetroCluster_Node
Health: ok
Initialization State: initialized
Number of Outstanding Alerts: 0
Number of Suppressed Alerts: 0
Node: cluster-01, cluster-02, cluster-03,
cluster-04, cluster-05, cluster-06,
cluster-09, cluster-10
Subsystem Refresh Interval: 15m, 15m, 15m, 15m, 15m, 15m, 15m, 15m

Scan to view the article on your device

 

  • Was this article helpful?