http redirect load balacing based on pool member health with session persistence

excellent thanks for the help nitass and Brad. I was able to utilize LB::select to make the lb decision early and compare against my data group for the correct redirect.

Code i'm using is as follows:

  when HTTP_REQUEST {
   check if serverside connection had previously been established
  if { [LB::server addr] eq "" }{
     if no serverside connection had previously been established, force one
     so the irule has the info required to use in the match against the data
     group
    eval [LB::select]
  }
 log local0. "Source Client IP: [IP::client_addr]"
 log local0. "LB Server name: [LB::server name]"
 log local0. "LB Server addr selected: [LB::server addr]"
 perform the data group class lookup matching the selected server address to issue the 
 appropriate HTTP redirect
  HTTP::redirect [class lookup [LB::server addr] "data.group.name"]
}