In the Management Settings for Idle Unit section, you can configure management settings for the idle unit.
High Availability configuration is limited for SMA 500v Virtual Appliances. Use the High Availability > Settings page to enable High Availability on the SMA 500v Virtual Appliance, designate it as the primary or secondary unit, and select the interface. Note the following limitations when configuring management settings for an SMA 500v Virtual Appliance:
To configure management settings for the idle unit: