Type III C lass A Program

DETACH
Purpose:
DETACH removes the specified attached device from the
virtual machine configuration.
Format:
DETACH I devaddr
DE 1
devaddr specifies the address of a device that had
previously been attached to the virtual machine.
Usage:
DETACH removes the specified device from the user's virtual
machine configuration for the current session. DETACH is
also used in conjunction with the console function ATTACH,
which can only be issued by the CP operator. Once a device
has been ATTACU'ed to a virtual machine (see "Console
Function Applications" for a discussion of attaching I10
devices), the responsibility is left to the user to remove
or detach the specified device from his configuration.. As
long as the device is attached to him" it is unavailable for
use by any· other user.
DETACH removes the specified device from the configuration.
As soon as the device is detached, the message DEV devadd
DETACHED is typed out at the terminal and the device is free
for use by other users. Also, a message is automatically
typed out to the CP operator specifying the device that is
free. If the device address detached is that of a tape
dri ve,. the tape is rewound and unloaded.
Responses:
a. BAD ARGUMENT xx
An invalid argument was specified.
b. DEV devadd DETACHED
The specified device address is no longer usable. The
device must be attached again for further use.
c. NONEXlsTENT UNIT
The specified unit does
configuration. Either it
attached.
410
not exist in the virtual machine
has been detached or it never was
DETACH