Starting and Stopping the R/3 System 
Starting and Stopping the R/3 System: Overview
WindowsNT
Starting an R/3 System: Windows NT SAP Service Manager Stopping an R/3 System: Windows NT Start and Shutdown Processing under Windows NTUNIX
Starting and Stopping the Database System: UNIX Starting an R/3 System: UNIX Stopping an R/3 System: UNIX Program SAPSTARTAS/400
Starting the R/3 System: AS/400 Stopping the R/3 System: AS/400CCMS Profiles and Operation Modes
Controlling System Startup Starting the R/3 System Using Operation Modes Starting the R/3 System Using Start Profiles Starting and Stopping Instances