Irule to rewrite URL

I want the /sav/dtl or sav/jog URLs to stay the same when entered into the browser so doesn't want this to be transparent to the user. Thank you.

Here this irule should work for you when HTTP_REQUEST {

set Vuri [ string tolower [HTTP::uri]]

if { $Vuri starts_with "/sav/dtl/"} then {
    set the new_vuri variable starting 8 Characters from the start
    set new_Vuri [string range [HTTP::uri] 8 end]
    HTTP::redirect "http://10.2.2.120:8081$new_Vuri"
}
elseif {$Vuri starts_with "/sav/jog/" } then { 
    set new_Vuri [string range [HTTP::uri] 8 end]
    HTTP::redirect"http://10.2.2.85:8081$new_Vuri"
}

}

Sorry I just noticed that you do not want a redirect but a pool assignment The key is you want to remove /sav/dtl/ and /sav/jog to remove these characters use the string range command. pool1 is the first server and pool 2 is the second server. Make sure the pool are using the 8081 port

when HTTP_REQUEST {

set Vuri [ string tolower [HTTP::uri]]

if { $Vuri starts_with "/sav/dtl/"} then {
    set HTTP::uri to start 8 Characters from the start og it self
    HTTP::uri [string range [HTTP::uri] 8 end]
    pool pool1
}
elseif {$Vuri starts_with "/sav/jog/" } then { 
    HTTP::uri [string range [HTTP::uri] 8 end]
    pool srvpool2
}

}