mark a node down in one pool only?

sorry for not being clear. i will explain what i think i am trying to do which may spur more questions from you. if you like i could then explain overall my issue but i tend to ramble and dont want to muddy up the post.

 

 

by node i do mean backend server. i was thinking of having one vip that is serviced by four pools (using an irule to determine which pool to use). these four pools would have four nodes in each pool. furthermore, these nodes are in all four of the pools. basically the same four nodes in all four pools. am i making sense? then with icontrol, i need to make a determination on a backend service state and drop one of these nodes from only one of the pools. i wasnt sure if icontrol could do that or would it just down the node (backend server) all together causing it to drop from all four pools. like i said this may not seem to make much sense of why i am doing that but i can explain further if it would help. (i suspect at some point i will anyways seeing that i will most likely be looking for more help as i go down this road)

 

 

thanks and i hope that clarifies my question somewhat.