When a cluster is created, the system automatically generates an encryption key to store the security information in the cluster (such as all database user passwords and key file access passwords) in encryption mode. After a cluster is successfully installed, it is advised to regularly update the encryption key based on the following procedure.
You have stopped the upper-layer service applications that depend on the cluster.
Select I have read the information and understand the impact in the displayed window, and click OK. After Operation succeeded is displayed, click Finish. The cluster is stopped.
sudo su - omm
Enter y as prompted.
The root key update is a critical operation. Do you want to continue?(y/n):
If the following information is displayed, the key is updated successfully.
... Step 4-1: The key save path is obtained successfully. ... Step 4-4: The root key is sent successfully.
In the confirmation dialog box, click OK to start the cluster. After Operation succeeded is displayed, click Finish. The cluster is started.