Fail over a Systems object service

A service failover occurs when the Standby service takes control of the system and the primary service goes into Standby mode. In addition, peripheral and polling devices switch to a new primary service.

You can automatically or manually initiate a failover by using the Systems Services action menu.

Notes: This menu is specific to the arbitrated services listed under the Systems <systems object> Services node.

Automatic and manual failovers can occur for either the RealTime or Historical services. However, these services are independent, which means that one service can failover without impacting the other.

Failovers are initiated when either any critical process fails; for instance, a poll for data or Job Scheduler (JSH), or any critical device fails, such as a disk or network.

To fail over a Systems object service

1. Select Failover on the Service Action Menu.

   

   The Service Failover Confirmation dialog box appears.

   

2. Do one of the following:

   • Select OK to continue the failover.

     Note: The Service Failover in Progress dialog box appears. Once this dialog box disappears, the service failover is complete.

     

   • Select Cancel to discontinue.

3. If the failover procedure has failed, the Service Operation Failed dialog box appears.

   If this happens, check the log file for details. For more information about the log file, refer to Work with Log Viewing.