Quote:
Originally Posted by
hicksd8
Both node A & B would have their "hardwired - never to change" IP addresses and the cluster suite presents a pseudo ip address to all clients. The clients only ever access this pseudo ip address (and don't know about the real ip addresses). When failover occurs the suite moves the pseudo ip address to the other node and the clients are none the wiser (apart from perhaps a few seconds hang).
This is very similar to what HACMP (IBMs failover software for AIX) does too. In HACMPs wording what you call "pseudo IP" is called "service IP" and technically it is an IP alias, which is moved with the "resource group" (a group of mounted file systems, start-/stop-scripts for the application and said IP address(es)).
I hope this helps.
bakunin