Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!utgpu!water!watnot!watmath!clyde!cbatt!ucbvax!LBL.ARPA!nagy%43198.hepnet From: nagy%43198.hepnet@LBL.ARPA.UUCP Newsgroups: mod.computers.vax Subject: RE:DECServer Load Balancing Formula Message-ID: <8704110525.AA03369@ucbvax.Berkeley.EDU> Date: Fri, 10-Apr-87 16:13:06 EST Article-I.D.: ucbvax.8704110525.AA03369 Posted: Fri Apr 10 16:13:06 1987 Date-Received: Sun, 12-Apr-87 00:55:41 EST Sender: daemon@ucbvax.BERKELEY.EDU Distribution: world Organization: The ARPA Internet Lines: 16 Approved: info-vax@sri-kl.arpa Well, I don't know what the formula is, but it works pretty well. The one exception seems to be with systems that are 100% busy because batch jobs are ALWAYS running in the background and eating up that idle time. We have a 2 node LAVC (both MicroVAXes) and get the users fairly well split between the two systems. One point to beware of when you try it: if your systems are lightly loaded AND you a trying "load balancing" by logging in another session from your terminal, you will find that the DECServer's bias to add a new terminal to an existing virtual circuit will cause your 2nd session to go to the same VAXCluster node (this is done to more efficiently use the communications channel - the controller and CPU on the host - by doubling up characters for two terminals in the same Enet packets).