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

QUERY (Real Device)
Note: If the device identifier is unknown, the dddd and mm fields are blank. If the
control unit identifier is unknown, the cccc and nn fields are blank.
Responses with STATUS:
Note: In all of the following responses, rdev is the real device number for which the
user refers to the device.
When the device is ready and available, you see a response like this:
DEVICE rdev OPERATIONAL
When the device is either disabled or not connected to the channel subsystem, you
see a response like this:
DEVICE rdev NOT OPERATIONAL
When the device sense data indicates an equipment check, you see a response
like this:
DEVICE rdev EQUIPMENT CHECK
When the device has indicated it has hardware problems, you see a response like
this:
rdev CHANNEL ERROR
When the device is unavailable (boxed), you see a response like this:
DASD rdev BOXED
When the device is unavailable to CP, you see a response like this:
DASD rdev OFFLINE
When the device is in a state-change-pending condition, during wuich it cannot
service I/O requests, you see a response like this:
DASD rdev STATE CHANGE IS PENDING
When the subchannel for the device has been varied offline you see a response
like this:
DASD rdev SUBCHOFF
When the device has been taken offline for maintenance, you see a response like
this:
DASD rdev QUIESCED
Response for Devices Needing Intervention:
If the system is using a device that is in an intervention-required state when you
enter QUERY (Real Device), you receive a response that looks like this:
A DASD 1801 intervention required.
DASD is the real device type. It can be replaced by one of the following, depending
on the type of device at the specified address:
Type Meaning
TAPE Magnetic tape
RDR Card reader
PRT Printer
PUN Card punch
956 z/VM: CP Commands and Utilities Reference