1. Log in to primary BIG-IQ System with your administrator user name and password.
2. At the top left of the screen, select System Management from the BIG-IQ menu.
3. At the top of the screen, click Inventory.
4. On the left, click BIG-IQ HA.
5. Click the Add Device button.
6. Type the properties for the peer BIG-IQ system you are adding, and then click the Add button at the bottom of the screen.
   A popup screen opens, explaining the configuration changes being made.
7. Click the OK button.

Some settings and configurations are not compatible between BIG-IQ^® version 4.5 or 4.6, and version 5.0. After you upgrade to BIG-IQ version 5.0, you’ll need to re-specify configuration settings for any of the following functionality you were using before you upgraded.

Audit Logging:

Device Management:

• Backup Schedules, including retention policies, when upgrading from BIG-IQ version 4.5 directly to version 5.0. If you upgrade from BIG-IQ version 4.6 to version 5.0, the Backup Schedules and retention policies are retained. Refer to the BIG-IQ version 5.0 release notes for more information.

Change Management:

• Configuration Snapshots
• Evaluate & Deploy

Network Security:

• Notification Rules and Notification Schedules
• Change Verification Reports
• Web Application Security event logs created in a previous version of BIG-IQ are not compatible with BIG-IQ version 5.0.

Global User Settings

• Reverts to default settings