confine iRule within a partition

Partitions are useful only to group configuration for user permissions, route domains, sync-only groups etc. There is not a real isolation. Using it only to organize the configuration like real directories, IMHO, is a mistake. Moreover, I don't know if it's possible to programatically redirect a VS to an offline pool and expect it to dynamically inherit the new pool state, maybe would be better to check the pool state before redirecting in order to reject the connection manually in case of errors.