What do these security properties mean?

Use these properties to configure security for the PowerHA® SystemMirror cluster communication. The default values can be changed to suit your specific cluster environment.

You can choose one of the following security levels for the cluster:
  • Low: Provides heartbeat authentication. This value is the default setting.
  • Medium: Provides encryption of some messages, such as cluster event communication, as well as heartbeat authentication.
  • High: Provides encryption of all messages, including Kernel interfaces, as well as the heartbeat authentication.
  • None: Provides no encryption or hashing for any cluster communication packets. You cannot configure any other security properties when you select this security level.

Configuration-related key pairs (certificate and key) are used to communicate information in a secured manner. By default, a key pair is created internally, but you can choose to use SSHD-related key pairs or your own custom key information.

For more information about cluster security, see the Cluster security topic in the AIX® Information Center.