page of GC20-1806-9 As Updated April 1, 1981 by TNL GN25-0834 4. Attempts to detach an active shared device from the system will
result in an error message indicating the device is being shared by Multiple users. In order to detach the device, the system operator
aust inform the affected users to detach the device from their
virtual systems. The QUERY LINKS commands used by the system
operator will infor. him of the progress of the virtual machine
detachment operation.
5. DOS or as virtual machine systems should vary the device offline
before invoking the DETACH command. Similarly, CMS users should
issue the FELEASE command before invoking DETACH.
6. The use of DETACH while a virtual machine is tracing I/O will cause
abnormal termination, (DSP004). !essages are sent to the user, the operator who issued the command,
and the primary system operator (if different from the operator who issued the coamand), notifying them that the DETACH was successful. {
Vaddr...
}
vaddr-vaddr
type vaddr DETACHED BY operator
the appropriate response sent to the user if an operator detaches
one or more of the user's devices.
{
raddr... }
raddr-raddr
type raddr DETACHED
r , luseridl L .J
the appropriate response is issued
previously attached device(s) or if
device(s) from a user or the system.
{
raddr.. }
raddr-raddr r,
type raddr DETACHED luseridl BY operator I SYSTE! I L .J
if the user detaches a
the operator detaches the
the appropriate response is issued to the primary system operator if a class B operator other than the primary system operator issued
the DETACH command and the device or devices had been previously
attached. lote: In the above responses (other than multiple real address response
or a range of real address responses), the term "type" is one of the
following: DASD TAPE LINE RDR
PRT PUN GRIP CONS CTCA
CTLR DEV !SC Meaning Direct access storage device/3330V (MSS 3330 virtual volume) !agnetic tape
co.munication line
Card reader
Line printer
Card punch
Graphics device
Console
Channel-to-channel adapter 3704 or 3705 communications controller
Any other device
3151 port address
Section 3. CP Commands 65
April 1, 1981
CTCA vaddr DROP FROM userid vaddr
is the response if the device detached was a virtual CTCA connected
(via the COUPLE command) to another CTCA on the virtual machine
specified by the userid. This response is always followed by the
response:
CTCA vaddr DETACHED
66 VM/370 Operator's Guide
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