Configuring DHCP failover begins by assigning two DHCP deployment roles to the same IP block or network.
Attention: If you configure a DHCPv4 Raw option on a DHCPv4 range, the
DHCPv4 Raw option is only deployed on the Primary server in DHCP Failover. To ensure
that the DHCPv4 Raw option is also configured on the Secondary server, you must
configure a second DHCPv4 Raw option on the DHCPv4 range and deploy the option to
the Secondary server.
To configure failover deployment roles: