Question : Page redirection to Maintenance page when pool members are down

I use the redirect method all the time. However my code looks more like this ( == 0 , as in no active members)

Or even:

ltm rule myrule {
    when HTTP_REQUEST {
  if { [active_members [LB::server pool]] == 0 } {
    HTTP::redirect "http://www.google.com"
  }
}
}