Starting with System Manager 9.6, you can initiate a negotiated (planned) switchover of a MetroCluster site. This operation is useful when you want to perform disaster recovery testing or planned maintenance on the site.
Procedure
-
In System Manager, use the cluster administrator credentials to log on to the local MetroCluster site (Site A).
- Click
The MetroCluster Switchover/Switchback Operations window displays.
- Click Next.
The MetroCluster Switchover and Switchback Operations window displays the status of the operations, and System Manager verifies whether a negotiated switchover is possible.
- Perform one of the following substeps when the validation process has completed:
- If validation is successful, proceed to Step 5.
- If validation fails, but Site B is up, then an error has occurred, such as a problem with a subsystem or NVram mirroring is not synchronized. You can perform either of the following processes:
- Fix the issue that is causing the error, click Close, and then start again at Step 1.
- Halt the Site B nodes, click Close, and then perform the steps in Performing an unplanned switchover.
- If validation fails, and Site B is down, then most likely there is a connection problem. Verify that Site B is really down, then perform the steps in Performing an unplanned switchover.
- Click Switchover from Site B to Site A to initiate the switchover process.
A warning message displays, warning you that the switchover operation stops all data SVMs on Site B and restarts them on Site A.
- If you want to proceed, click Yes.
The switchover process begins. The states of Site A and Site B are displayed above the graphic representations of their configurations. If the switchover operation fails, an error message displays. Click
Close. Correct any errors and start again at Step
1
- Wait until System Manager shows that healing has been completed.
When healing is completed, Site B is operational, and systems prepare for the switchback process.
When the preparations for the switchback process are complete, the Switchback from Site A to Site B button is active at the bottom of the window.
- To proceed with the switchback operation, perform the steps in Performing a switchback.