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

The following response is also displayed if the real device is attached to the system
for access as user minidisks or for system paging, spooling, or temporary disk
space. This response is longer than the previous response because the device may
be reserved (shared option is on), it may have a reserve pending, or it is currently
reserved.
q dasd active
DASD 181A CP SYSTEM ESAP2C SHARED
DASD 181B CP OWNED ESAP2F RESERVE PENDING FOR USER DAVID
DASD 181C CP OWNED ESAP30 RESERVED BY SYSTEM
Ready;
Response 5:
If the device is dedicated to a user, you see a message like this:
q dasd
DASD 0820 ATTACHED TO OLIVER 01FC R/0 XAUSR4
Ready;
This means the DASD at the real device number 0820 is attached to OLIVER’s
virtual machine as the virtual device 01FC. The DASD’s volume identifier is
XAUSR4. R/O means the user OLIVER has read-only access to the DASD. R/O
might also read R/W, which means the user had read-write access. ATTACHED
may be replaced with BOX/ATTC, which means that although the device is
dedicated to a user, it is unavailable (usually because of a hardware condition).
Response 6:
If you enter QUERY DASD DRAINING, you see something like this:
q dasd draining
DASD Vol-ID Rdev Draining: PAge LInks SPool TDisk
0C02 DR4209 0C02 Yes Yes Yes Yes
0C04 DR5703 0C04 No No Yes No
Ready;
This response shows the device number and volume identifier of the DASD, as well
as which operations are prevented on it. The second line indicates that CP will not
write pages to the DASD at 0C02, allow LINK commands to minidisks on it, allocate
space on it for new spool records, or allocate temporary disk requests on it. The
third line indicates that CP will not allocate space for new spool records on the
DASD at 0C04.
Response 7
If you enter QUERY DASD DETAILS and the device is attached to a noncaching
storage control, you see the following response:
rdev CUTYPE = cccc-mm, DEVTYPE = dddd-mm, VOLSER = vvvvvv, CYLS = nnnn
If you enter QUERY DASD DETAILS for devices attached to a caching storage
control (see Usage Notes), you see something like this:
query dasd details 1801
1801 CUTYPE = 3990-EC, DEVTYPE = 3390-06, VOLSER = USPK2, CYLS = 3339
CACHE DETAILS: CACHE NVS CFW DFW PINNED CONCOPY
-SUBSYSTEM Y Y Y - N N
-DEVICE Y - - N N N
DEVICE DETAILS: CCA = 01, DDC = 01
QUERY DASD
Chapter 2. CP Commands 769