APM readiness

Just be aware that APM doesn't sync the same way as LTM. APM itself has no real concept of active/standby within the product or synching of sessions between devices. The APM sync is within APM (Called Policy Sync). It's not the same as the LTM device groups.

Normally I'd run 2 (Or more) APM's side by side active/active with non floating IP's for the VS's. That way they're up all the time (Running active standby is just an expensive way of having an idle APM unit that you have no idea works until you need it, and I've never actually run an APM policy on a floating VS :) ).

You just use the APM Policy sync then to keep the config synchronised between them.

Within the policy APM has device specific settings for various things like SecureID auth so you can have different configs used by each device even though you're syncing the configs...

For HA You can load-balance a service across the multiple APM's by using either GTM (My preference) or a front-end LTM VS that just redirects to a chosen APM VS by name (e.g. at random or selection by GeoIP etc)

H