z/VM: CP Commands and Utilities Reference - z/VM - IBM

DEFINE CHPID / PATH
OPEN_SYStems_adapter
OSA
tells CP that this is an Open Systems Adapter (OSA) channel path.
Note: When defining OSA channels, you should remain in configuration mode
while defining the channel path, control unit, and device. If you exit
configuration mode before issuing these three DEFINE commands, CP
will not add this OSA device to your I/O configuration. For details see the
Planning for the System/390 Open Systems Adapter Feature book,
GC23-3870.
OSA_Console_3270
OSC
tells CP that this is an OSA Integrated Console Controller (OSA-ICC) channel
path (also known as an OSA-3270 Console).
OSA_Direct_express
OSD
tells CP that this is an Open Systems Adapter Direct-Express (OSD) channel
path.
PQ_ON
PQ_OFF
tells CP whether or not outbound priority queuing as supported by the QDIO
interface is to be used. If PQ_OFF is specified, then priority queuing is disabled.
By not exploiting this function for an OSD channel, the channel can support four
(4) times as many queues. For details, refer to Usage Note 11. When the option
is unspecified, the default is PQ_ON, which enables priority queuing.
OSA_Express
OSE
tells CP that this is an Open Systems Adapter Express (OSE) channel path.
ALL_PARtitions
REC
tells CP that all logical partitions are candidates for access to this channel path,
but only the logical partition specified on the PARTITION operand will have
initial access to the channel path at device initialization.
Note: This operand is only valid for processors in logically partitioned (LPAR)
mode.
DEDicated
tells CP that only the logical partition specified on the PARTITION operand is a
candidate for access to this channel path, and that logical partition will have
initial access to the channel path at device initialization.
Note: This operand is only valid for processors in logically partitioned (LPAR)
mode.
PARtition pname
is the name of the logical partition that will have initial access (will be the main
path) to this channel path at device initialization. The variable pname must be a
1- to 8-character alphanumeric string.
Note: This operand is only valid for processors in logically partitioned (LPAR)
mode.
Chapter 2. CP Commands 129