- Migrating an High Availability Pair to App Controller 2.8
- Backing Up and Restoring Snapshots in an High Availability Pair
You can upgrade two App Controller virtual machine (VMs) in a high availability pair from App Controller 2.6 to App Controller 2.8. You can migrate each VM by using one of two methods:
App Controller provides 50 gigabytes (GB) of disk space. If you upgrade each VM in the pair, each instance has 50 GB of disk space.
If you install new instances of App Controller, you can use the same IP addresses that you used for App Controller 2.6. When you install new instances, you install and configure the VM by using the instructions in Installing App Controller 2.8. Then, you can use the command-line console to create the high availability pair with App Controller 2.8.
In this procedure, the primary node is called A and the secondary node is B.
After you upgrade and restart both nodes, the VMs automatically join to create the high availability pair.