System Startup, Configuration, and Shutdown Reference Manual (32650-90907)

Chapter 5
Modifying Input/Output (I/O) Configurations
Using the SYSGEN I/O Configurator
116
You use the NMMGR program to add non-local devices such as terminals, serial printers, UPS hardware and
other objects to a system. To learn how to configure UPS devices, read “Introducing the UPS and UPS
Monitor/iX Software” later in this chapter. To learn how to use NMMGR to configure other devices, read
Configuring Systems for Terminals, Printers, and Other Serial Devices.
Changing Configurations in SYSGEN
When you use SYSGEN to change the system configuration, there are five I/O Configurator commands
available: MADDRESS, MCLASS, MDEV, MPATH, and MVOL. They are defined in Table 5-4 and explained in the
following sections.
Table 5-4 I/O Configurator Modify Commands
Command Definition Examples
MADDRESS Modifies the I/O path from one that exists to a
new path that does not already exist. You
specify the old path and the new path, both of
which must have the same number of levels.
MADDRESS 2/4.0.2 6/4.0.3
MCLASS Changes I/O class information including the
class mode, the class name, and the devices
associated with the class.
MCLASS CLASS LP
NEWCLASS=BIGPRN MODE=OUT
MCLASS BONSAI SMALLPRN
28/29
MDEV Changes the attributes of a configured device.
You specify the LDEV number of the device
you want to modify, then enter the new
parameters. This commands changes the
LDEV number itself, the device ID, the device
path, class, mode, record size, physical and
logical device manager, the compatibility mode
type and subtype, and the device name.
MDEV 8 18 HP7978H 4.3.0
MODE=JOB
MPAT Changes the attributes of an I/O path. You can
modify the path name, the product ID, the
physical and logical device managers, the
execution priority of the physical device
manager, and the maximum number of
concurrent I/Os to expect.
MPATH 4.1 HP27113A
MPATH 2/4.3 PMGR=HPIB_DAM
MVOL Modifies the attributes of a volume set
member. You can modify the volume name,
volume class and the amounts of transient and
permanent disk space allocated on the volume.
VOL VNAME=MEMBER2
TRANSIENT=30
PERMANENT=70