My company has purchased three ACE modules, two for the main data centre and one for a disaster recovery (DR) site.
There is a fibre link to the DR site which is configured with trunking for some vlans, but the bandwidth will not be sufficient to use the DR ACE as a failover for one of the ACEs in the main data centre.
The two ACEs in the main data centre are setup in fault-tolerant mode for the relevant context. Routed mode is currently implemented for the load balancing.
The DR plan is for servers to be brought up at the DR site with the same IP addresses, and for users to be able to connect to the same VIPs.
There is no point in the DR ACE maintaining state information with the main data centre seeing as the servers will anyway have to be recovered at the DR site. I am also quite happy to manually redo any configuration changes made on the main data centre ACEs on the DR ACE.
What is important is that the VIPs do come up automatically in a DR. I can manually add static routes and do a "no shutdown" on the context interfaces, by I would really like everything to happen automatically.
I know that the IOS SLB failover solution can do this because the failover works with HSRP and more than two 6500s can participate in HSRP failover.
Can anyone please tell me how I can achieve automatic failover of the VIPs in the event of a DR using the ACE modules? I can easily implement an HSRP design, or something that uses dynamic routing, or I can change the ACEs to one-armed mode if that will solve the problem.