Activating and Deactivating Cluster Time Management

To activate CTSS in your cluster, you must stop and deconfigure the vendor time synchronization service on all nodes in the cluster. CTSS detects when this happens and assumes time management for the cluster.

For example, to deconfigure NTP, you must remove or rename the etc/ntp.conf file.

Similarly, to deactivate CTSS in your cluster:

  1. Configure the vendor time synchronization service on all nodes in the cluster. CTSS detects this change and reverts back to observer mode.
  2. Use the crsctl check ctss command to ensure that CTSS is operating in observer mode.
  3. Start the vendor time synchronization service on all nodes in the cluster.
  4. Use the cluvfy comp clocksync -n all command to verify that the vendor time synchronization service is operating.

See Also:

Oracle Grid Infrastructure Installation Guide for your platform for information about configuring NTP for Oracle Clusterware, or disabling it to use CTSS