When you configure
high availability, each App Controller virtual machine (VM) must be running the
same version and build. You configure the primary VM first with the following
- Virtual IP address
- Peer IP address
- Shared key
You need to
configure the primary and secondary VM. After you configure these settings, you
enable high availability on each VM.
If you need to
make changes to the primary App Controller, you can force failover to the
secondary App Controller. The primary VM has the option to force failover. When
you force failover to the secondary VM, the option to force failover appears on
the new primary VM and disappears from the new secondary VM.