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

Response 1:
If a virtual machine user is logged on at the device, you see a response like this:
query ldev L101
GRAF L0101 LOGON AS JIM 0009 HOST PVM
Ready;
This means that user ID JIM is logged on to the graphic display device at logical
device number L0101 and is using virtual console address 0009. PVM is the user
ID that created the specified logical device.
Response 2:
If the logical device is dedicated to a user, you see a response like this:
query L102
PRT L0102 ATTACHED TO SUSIE 002A
Ready;
L0102 is the logical device number of the printer. The printer is attached as the
virtual device 002A to user SUSIE’s virtual machine.
Response 3:
If the system is using a logical device that needs operator intervention, you see a
response like this:
query ldev L103
A GRAF L0103 intervention required.
GRAF L0103 LOGON AS LAYLA 03E0 HOST PVM
Ready;
L0103 is the logical device number of the graphic display that needs intervention.
PVM is the user ID that created the specified logical device.
If the logical device that needs system intervention is a printer, you see a response
like this:
q L102
A printer L0102 intervention required.
PRT L0102 ATTACHED TO SUSIE 0102
Ready;
Response 4:
If the device is free, you see a response like this:
query ldev L102-L105
GRAF L0102 ENABLED HOST TCPIP FROM 9.130.58.78
GRAF L0103 ENABLED HOST PVM
PRT L0104 DISABLED HOST PVM
GRAF L0105 ENABLED HOST TCPIP FROM 9.130.58.29
Ready;
PVM and TCPIP are the user IDs that created the specified logical devices.
If you do not specify LDEVS, CP omits the host information at the end of each
response and displays instead information on up to 3 logical devices on each line:
query ldevs L0102-L0105
GRAF L0102 ENABLED , GRAF L0103 ENABLED , PRT L0104 DISABLED
GRAF L0105 ENABLED
Ready;
QUERY LDEVS
Chapter 2. CP Commands 843