In the case of virtual DASD volumes associated with the 3850 Mass Storage System, the ATTACH command allows 3330V devices to be
attached to a virtual machine without requ1r1ng a volume to bemounted. This is necessary because staging of cylinder 0 on a
virtualvolume is not accomplished until a MSC mount order is issued associating the ?irtual unit address with a volume serial.
Even if themount order was issued prior to the ATTACH, the host
systemmay change the data staged on a virtual volume by issuing
anotherMSC mount order.
9. IfR/O is specified with a range of addresses or with multiple
addresses, this operand apFlies only to DASD addresses. TheR/O operand is ignored for all other device addresses specified on the
command line.10. Do not attach virtual 3330 volumes (3330V) to the SYSTEft; 3330V cannot be used for minidisks, CP residence, paging, or spooling
activity.Messages are sent to the user, the operator who issued the command (if
different fro. the user), and the primary system operator (if different
from the operatorwho issued the command), notifying them that the
ATTACHwas successful.
type raddr ATTACHED
raddr••• ATTACHED
raddr-raddr ATTACHED
Depending upon the form used for the co•• and line, the appropriate message indicates to the user the real device or devices attached
to his virtualmachine. If multiple addresses or a range of
addresses are specified, the device type is not displayed.
type raddr ATTACHEDTO userid vaddr
type raddr ATTACHEDTO SYSTEM volid
raddr••• ATTACHED TO userid
raddr-raddr ATTACHEDTO userid
Depending on the form used by the class B operator forcommand line
entry, the appropriate response indicates the real device(s) that
are attached to CP or a specified user's virtualmachine (and, if
appropriate, the virtual address of the device). If multiple
addresses or a range of addresses are specified, the device type is
not displayed.
type raddr ATTACHTO SYSTEM volid BY userid
-- or --
type raddr ATTACHTO userid vaddr BY userid
is the response to the primarysystem operator (if he did not issue
theco.mand) indicating that the real device has been attached
either to the specified user's machine at virtual address vaddr or
to the CPsystem by the specified class Buser. 48 VM/370 operator's Guide
attached to a virtual machine without requ1r1ng a volume to be
virtual
Even if the
system
another
9. If
addresses, this operand apFlies only to DASD addresses. The
command line.
activity.
different fro. the user), and the primary system operator (if different
from the operator
ATTACH
type raddr ATTACHED
raddr
raddr-raddr ATTACHED
Depending upon the form used for the co
to his virtual
addresses are specified, the device type is not displayed.
type raddr ATTACHED
type raddr ATTACHED
raddr
raddr-raddr ATTACHED
Depending on the form used by the class B operator for
entry, the appropriate response indicates the real device(s) that
are attached to CP or a specified user's virtual
appropriate, the virtual address of the device). If multiple
addresses or a range of addresses are specified, the device type is
not displayed.
type raddr ATTACH
-- or --
type raddr ATTACH
is the response to the primary
the
either to the specified user's machine at virtual address vaddr or
to the CP