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

Responses
10. To display the status of one or more real devices, use the QUERY (Real
Device) command. (See page 955.)
Note: If your processor is in LPAR mode, the QUERY (Real Device) command
displays the status of the device only if you issue the QUERY command
in a logical partition (LP) that has been defined to have access to the
device.
11. On a machine with multiple logical channel-subsystem images, the DEFINE
DEVICE and DEFINE IODEVICE commands define the device with respect to
the control unit’s connection to channel paths within the single specified logical
channel-subsystem image. If the control unit is connected to channel paths in
more than one logical channel-subsystem image, then subsequent DEFINE
DEVICE or DEFINE IODEVICE commands must be entered to define the
device in the other logical channel-subsystem images.
Response 1:
To define 16 real DASDs in two logical partitions with a preferred channel path,
enter the following:
def dev 300-30f unit_addr 0 cu 300 dasd preferred 3 par vm1 vm5
Device configuration change completed successfully
Ready;
Response 2:
To define 16 real DASDs in two logical partitions in a channel-subsystem image,
enter the following:
def dev 4300-430F unitadd 80 cu 8100 css 3 dasd par vm1 vm2
Device configuration change completed successfully
Ready;
DEFINE DEVICE / IODEVICE
Chapter 2. CP Commands 159