C ONTENTSA BOUT THIS G UIDEConventions 15Notices 15Text 15Related Documentation 16Your Comments 171 PRE-I NSTALLATIONHardware Configurations 19Configuration for 200 Users 19Configuration for 500 Users 20Configuration for 1,500 Users 20Configuration for 5,000 Users 21Unified Messaging Configuration 22Network Diagrams 22Single Server Pair 22Two Server Pairs (one subnetwork) 23Two Server Pairs (two subnetworks) 23Gathering Site Information 24Using DNS 24One Server Pair 25Two Server Pairs 25Installation Flow Diagrams 26One Pair of Servers 26Two Server Pairs 272 INSTALLATION SCRIPTS FOR A S INGLE PAIR OF SERVERSOverview of Components 32Installation Scripts 33Sample Network Parameters 33Sample Network and Initial Configuration Script (Primary Server) 33
