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

Options
R/O
can be used for DASD and tape devices that are attached to a user. This allows
the system operator to apply read-only protection to a user’s disk or tape.
CP ignores the R/O operand for any device number that does not correspond to
a TAPE or DASD device.
SINGLEuser
dedicates a real tape device to a single user. This is the default.
MULTIuser
attaches a real tape device to be serially shared with other users. See Usage
Note 19.
WITH ASSIGN
specifies that the tape device you want attached to the user will be assigned to
the user system. CP ignores this operand for any tape device that does not
support ASSIGN and UNASSIGN CCWs.
WITH NOASSIGN
specifies that the tape device you want attached to the user must not be
assigned to the user system. This gives the guest the ability to control the
assignment of the tape. CP ignores this operand for any tape device that does
not support ASSIGN and UNASSIGN CCWs.
Note: When a tape attached with NOASSIGN is detached:
v The tape is not rewound or unloaded.
ATTACH
v If the tape was attached with SINGLEUSER (the default), CP does not
change the ASSIGNED or UNASSIGNED status of the device. It is the
responsibility of the guest to enter the ASSIGN CCW when it needs
the tape and to enter the UNASSIGN CCW when it is finished using
the tape.
v If the tape was attached with MULTIUSER, CP changes the status of
the device to UNASSIGNED.
NOCPMS
indicates that attach processing should not issue MODE SET CCWs to a tape
device to initialize the Device Control Pages of the device. This option is
ignored for any tape device that does not support the X'CB' MODE SET CCW.
This option is not available on the DEDICATE User Directory Statement.
MODE SET CCWs are issued only if ASSIGN processing is also done. Thus,
NOCPMS performs no function if NOASSIGN is specified.
WITH DEVCTL
means that the device accepts CCWs that have an effect on resources and
functions directly related to the device. See Usage Note 9 for default values.
WITH NOCTL
means that the device does not accept any CCWs that can exercise control of
subsystem resources or functions, regardless of whether they directly relate to
the device.
WITH SYSCTL
means that the device accepts CCWs that have a direct global effect on
subsystem resources and functions, not just on those related to the device. See
Usage Note 9 for default values.
Chapter 2. CP Commands 29