Type
  • Troubleshooting
Description
  • This article explains why the VCS KM may be operating on a passive node.
Additional Keywords
  • Veritas Cluster Server KM for PATROL, Passive node

Related Topics

Knowledge Base

The Veritas Cluster Server KM is Operating on a Passive Node

KB1146 - Jun 26, 2014

Description

Two monitoring modes are available in Veritas Cluster Server KM for PATROL:

  • The Single-node Mode, which allows the KM to perform full monitoring on the selected system. With this mode, even the passive nodes will be monitored.
  • The Multi-node Mode, which avoids duplicate VCS KM alerts from multiple nodes. This mode can either be active or passive.

Troubleshooting

To stop the KM from operating on a passive node:

  1. Right-click the Veritas Cluster Server icon > InfoBox to check the Veritas Cluster Server monitoring Mode. If it reads:
    • Temporary Single-node Mode: the KM is either unable to find an active system (either a master system or an online node for the default ClusterService service group or a configured service group) or the PATROL Agent on the active node is not responding. This monitoring mode will change into “Multi-node Mode” as soon as the KM detects a system in Active Multi-node Mode.
    • Permanent Single-node Mode: the KM is not configured to operate in “Multi-node Mode”.  You will then have to right-click the KM main icon > KM Commands > Configuration > Monitoring Mode and select Multi-node Mode.
  2. Check whether the VCS KM has been active on this node and has failed over to another managed node. When a failover occurs, the shared instances created on the previous active node, will be destroyed, unless the pconfig variable, /VCS/DestroyInstances, is set to false. Use the following PSL through PATROL Console to go back to the default configuration:  
    %PSL pconfig("DELETE","/VCS/DestroyInstances");