05-08-2009 09:24 AM
There are small differences. One example is the fact that you do need to specify an IP address configuring an healthck. You do need to specify a destination ports as well. That implies a single healthck is always going to check the same destination IP at the same port.
You do not have to enter an IP address and port using port-policies. You can bind the same port-policy to multiple real servers (respectively real server ports) and the port-policy is going to use the current real servers IP and the port it is bound to instead of a fixed IP address and port.
Do you have to check very special things: use the healthck's (it is even possible to check a foreign IP address). Do you want a simple way to check the same for multiple real servers/services? go for port-policies.