HP 3000 Manuals HP 3000 Manuals
Chapter 5 Modifying Input/Output (I/O) Configurations With the introduction of version C.55.00 of MPE/iX, there are two ways to define input and output devices on a system: using SYSGEN's I/O Configurator or using the IOCONFIG utility. Both methods provide information about the input and output devices configured on a system and let you make changes to the configuration as necessary. The key difference is that using IOCONFIG changes the configuration while the system remains online, whereas to activate configuration changes made with SYSGEN, you must issue a separate command (DOIONOW) after making the changes, or reboot the system with the START NORECOVERY option, or generate a new System Load Tape to update this (or another) system. SYSGEN's I/O configurator and the IOCONFIG utility configure the local devices of the system only. Remote devices, such as terminals on a distributed terminal subsystem and remote serial printers, are configured through the network management configurator. This chapter begins with a general discussion of I/O paths and then explains how to configure devices using SYSGEN and the IOCONFIG utility. For additional information, read chapter 3 of Performing System Manager Tasks (32650-90004).