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
the Performing System Manager Tasks manual.
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