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

Chapter 5
Modifying Input/Output (I/O) Configurations
Using the SYSGEN I/O Configurator
115
Adding Objects in SYSGEN
When you use SYSGEN to add objects to the system configuration, there are four I/O Configurator commands
available: ACLASS, ADEV, APATH and AVOL. They are defined in Table 5-3. For more detailed information read
Performing System Manager Tasks.
Table 5-3 I/O Configurator Add Commands
Command Definition Examples
ACLASS Creates a new class name and associates devices to
the new class. You use the ACLASS command to add
a class name designation to a device that is already
configured with the ADEV command. You also
specify the mode with this command, which can be
one of JOB (accepts jobs and sessions), IN (input
only), OUT (output only), CIO (concurrent I/O), NCIO
(nonconcurrent I/O), RANDOM (direct-access device
such as a disk), and DEFAULT (a mode assigned
when the system is initialized).
ACLASS EPOC 19
ACLASS PLATES 31/34
MODE=RANDOM
ADEV Adds a device to an existing I/O path that is
configured to the device adapter level. At a
minimum, you must specify the LDEV, the path,
and ID number, but you may also specify the record
size, an output device associated with the device,
the device operation mode, the class, a class mode
(other than the default assigned to the device),
physical and logical device managers, the priority
level of the physical device manager, the
compatability mode type and subtype, and a device
name.
ADEV LDEV=30 PATH=4.5.9
ID=HP2688A
ADEV 8 PATH=2/4.2.1
ID=HP7978B RSIZE=132
APATH Defines the I/O path to an adapter, not to a device.
(To add device level paths, you use the ADEV
command.) If the path has already been defined,
you will get an error. At a minimum, you must
enter the path and an ID, which is either the
Hewlett-Packard product number or a mnemonic
name that designates different uses of the same
product. You may also specify the physical and
logical device managers, the execution priority of
the physical device manager, and the maximum
number of concurrent I/Os to expect.
APATH PATH=4.2
ID=HP27113A
AVOL Adds a new volume to the system volume set
configuration. You must specify a unique name you
give to each volume member and its logical device
number. In addition, you may also specify the
volume class and the amounts of transient and
permanent disk space allocated on the volume.
AVOL VNAME=MEMBER2
LDEV=4 VCLASS=PROD