Altocumulus
CirrusYou need to track a unique local id somehow and then use irule to select pool member based on that id. Haven’t tested this but I would use tcl_platform(machine) to get hostname assuming they are different.
EmployeeThat isn't really an HA configuration, it is a DC failover design.
LTM HA requires that each LTM in the HA pair has the same view of the network, and treats all the pool member as equivalent. You want one pool member to be associated to one LTM in one DC, and the other pool member to be associated to the other LTM in the other DC. LTM HA cannot be configured to do this.
You also have the issue of moving an IP address (the virtual IP) from one DC to another - how are you planning to make that work if the DC's have different uplinks to the internet?
For a DC failover design, you would have a LTM (or LTM HA pair) and virtual in each DC, and use a F5 GTM/DNS to send traffic to whichever DC is preferred. If the GTM detects that a DC is down (pool member,virtual or upstream link failure), then it starts sending traffic using the wideIP to the other DC until service is restored.