You must take a snapshot of the AppDefense Appliance virtual machine (VM) before the upgrade. During the AppDefense Appliance upgrade, RPMs are installed and database migration occurs in the Appliance VM. The AppDefense Appliance do not have any automatic backup and restore feature. If upgrade fails, you can preserve the state of the Appliance VM.
- Right-click the AppDefense Appliance virtual machine and select Snapshots > Take Snapshot. For details, refer to the vSphere Documentation.
- Upgrade based on your configured Appliance upgrade strategy.
- If the upgrade is successful, you can delete the snapshot as per the space requirement.
- If the upgrade fails, revert the VM to the snapshot taken before upgrade.