System Startup, Configuration, and Shutdown Reference Manual (32650-90892)

130 Chapter5
Modifying Input/Output (I/O) Configurations
Using the IOCONFIG Utility
[ [MODE =]{JOB
DATA
INTERACTIVE
DUPLICATIVE
INPUT
OUTPUT
AUTOREPLY
NLIO
NONE }] [[CLASS =]
classname ]
[ [CMODE =]{IN
OUT
CIO
NCIO
RANDOM
DEFAULT}]
[[PMGR =]
physicalmanagername ]
[[LMGR =]
logicalmanagername ]
[[PMGRPRI =]
physicalmanager priority ]
[[MPETYPE =]
compmodetype ]
[[MPESUBTYPE =]
compmodesubtype ]
[[DEVNAME =]
devicename ]
To configure a SCSI device, it must be physically connected to the specified path, it must be
operational, and there must be a device-defaults-data entry for the product ID (which is
obtained from the device during configuration). If you omit the ID parameter, the
IOCONFIG utility interrogates the hardware to identify the device. It then validates the
ID that it retrieves by checking it against the list of supported devices.
When adding a printer to the configuration that has the class SPOOL, the spooler process
for that device will automatically be started and a message indicating this will appear on
the console.
Listing One or More Devices with IOCONFIG
The system manager or operator can list all devices in the system or one or more specified
devices along with their configuration information using the LISTDEVICE or LDEV
command. When you enter either command without parameters, information about all
devices currently configured in the system is listed. By providing one or more parameters
as the selection criteria, you can see information about particular devices.
The command syntax is as follows:
LISTDEVICE {[LDEV]=#/#,#,...}