multiple pools per VS

Well. Yes and no...

No, you can only have ONE directly associated pool to a VS. That's the 'default' pool (Configured via the GUI or the command line).

HOWEVER

You can use as many pools as you like for a VS by using an iRule to select the pool for servicing the request. The pool can be selected as a static string, or an arbitrary name made up on the fly (As long as it exists of course). If an iRule tries to assign a pool that doesn't exist, then you'll get a TCL runtime error in the iRule and the connection will be closed.

The iRule command to select a pool and over-ride the default pool is the 'pool' command. e.g.

if { [IP::client_ip] equals "10.0.0.1" } {
  pool "dedicatedpool"
}

would select the pool 'dedicatedpool' for the client at 10.0.0.1, and everone else would get the default pool for the VS.

H