iRule for URI / HOST based Pool redirection. (w. option to not offload SSL).

The array has to be in pairs. I guess the error you are getting is from that. Instead of array you can use data groups.

If want to use array see if the following helps, using the name to get the pool name.

when HTTP_REQUEST {
    array set pools {
        Organisation1   Y
        Organisation2   N
        Organisation3   N
    }
    foreach {CustPath SmartCard} [array get pools "[getfield [HTTP::uri]/" "/" 2]] {
        if { ($SmartCard equals "Y") }{
            SSL::disable
            HTTP::disable
        }
        pool P_APP_$CustPath
        return   
     }
     HTTP::respond 200 Content "This site does not exist."
}