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

QUERY (Real Device)
If the tape drive is assigned to receive system dumps, you see something like this:
q 238
TAPE 0238 ASSIGNED SYSTEM DUMP
Ready;
If the tape drive is currently being used by the TRSAVE command, you see
something like this:
q 242
TAPE 0242 ASSIGNED SYSTEM TRSAVE
Ready;
If a tape that is not dedicated to a user is not available (boxed), you see something
like this:
q 0244
TAPE 0244 BOXED
Ready;
If the tape drive is currently being unloaded following a DETACH command, or if CP
is in the process of determining whether rewind is possible, you will see something
like this:
q 246
TAPE 0246 UNLOADING
Ready;
If a tape drive has been attached MULTIUSER to one or more users, you see
something like this:
q 2100
TAPE 2100 ATTACHED TO USER1 0181 R/W NOASSIGN MULTIUSER
TAPE 2100 ATTACHED TO USER2 0181 R/W NOASSIGN MULTIUSER
Ready;
This means that the tape drive at real address 2100 is attached to USER1 and
USER2 at virtual device address 0181. MULTIUSER indicates that the tape drive is
shared by both users, and NOASSIGN states that the users must manage the
assignment of the tape drive by using assign and unassign I/O.
Responses for free or offline tape drives are in the same format.
Responses from Real Unit Record Devices:
If a unit record device is dedicated to a user, you see something like this:
q 000c
RDR 000C ATTACHED TO JAMES 02F0
Ready;
962 z/VM: CP Commands and Utilities Reference
This response means that the real card reader at the device number 000C is
dedicated to JAMES’s virtual machine at the virtual device number 02F0. RDR
might be replaced by PRT or PUN, depending on the kind of unit record device.
ATTACHED might be replaced by BOX/ATTC, which indicates that the device is
attached to the virtual machine but is unavailable (usually because of a hardware
problem).
Responses from Active Readers: If a reader is assigned to the system for spooling
activity and it is currently active with a spool file, you see a message like this: