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

Chapter 5
Modifying Input/Output (I/O) Configurations
Using the SYSGEN I/O Configurator
113
Printing the Configuration Information
You can use the OFFLINE option to send the output of the listing commands, LCLASS, LDEV, LPATH or LVOL, to
the file SYSGLIST. Using OFFLINE does not immediately generate printed output. The information is sent to
SYSGLIST until you either enter the OCLOSE command or exit SYSGEN. Exiting SYSGEN or using OCLOSE
closes SYSGLIST and prints the file.
For example, to print information about all devices with device class DISC and LP on your system, do the
following:
1. At the I/O Configurator prompt (>io) enter:
io>LCLASS (DISC,LP) DEST=OFFLINE
Or, you can enter the command this way:
Table 5-2 I/O Configurator List Commands
Command Definition Examples
LCLASS Lists the class name or names you specify with the
command, the class modes, and the devices
associated with the classes in the I/O configuration.
A class name is an identifier to which numerous
devices can be assigned. Unlike LDEV numbers,
device class names are not unique to each device.
For example, all of your system’s printers could be
assigned the class name LP. (LP, which stands for
“line printer,” is a common device class name.) For
more information, refer to the Controlling System
Activity. It provides detailed information about
device class names, their modes of operation, and
how they are assigned in the system.
LCLASS DISC
LCLASS (DISC,LP
LDEV Lists the attributes of the specified logical device or
devices. If you omit the LDEV number, all of the I/O
devices and their characteristics are listed. Each
configured logical device (LDEV) has a uniquely
assigned LDEV number which identifies a physical
device associated with a system.
LDEV CLASS=(LP,EPOC)
LDEV (4/9,11/14)
LPATH Lists information about the adapters and I/O
devices on a specified path level. You can list a
specific path, list paths a specific level, or list all
paths associated with an I/O manager.
LPATH PAT=4
LPATH, 1
LPATH MANAGER=CIPER_DM
LVOL Lists the attributes of the specified volume, which
is one disk pack. Each volume is a member of a
volume set and contains a volume label, a label
table, and a free space map. When you enter the
LVOL command for a specific volume, you will see
the volume’s LDEV number, the amount of
transient and permanent space it has, its class
status, and the volume class it belongs to.
LVOL MEMBER1