To see the real spooled output, specify a CP CLOSE command for that
device to the real CP system. Also, note that double separators occur.
For instance, the separator page on virtual printed output includes four pages (two for the virtual CP system and two more pages for the
separator of the virtual machine on which the virtual CP system is
running). The extra set of separator pages can be avoided by usinq the START 60mmand with the NOSEP option. -
Because the virtual machine operation at
there is nc easy way of describing how to do
requires careful study and analysis. At all
awareness of at what level of virtual machine
function the user is trying to perform.
this level is complex,
all the functions. It
times it requires an
is operating and what Example -- Running VM/370 Under VM/370 The following sample terminal session illustrates how to run a virtual CP system in a virtual machine environment. It is annotated to point out
some of the mere pertinent considerations. r-------------------------------------------, vm/370 online Ijh359 qsyosu I I logon v145r I ENTER PASSWORD: I I LOGMSG - 17:20: 14 EDT THURSDAY mm/dd/yy I * RUNNING SYS061--IPL 7 I * QUERY LOG FOR RESTRICTIONS I LOGON AT 18:38:06 EDT THURSDAY mm/dd/yy I L-- _____________________________________ This segment shows a normal logon procedure for a user identified as V145R. This userid is defined in the real CP directory with sufficient
optiens and configurations to run VM/370 in a virtual machine
environment.
query virtual STORAGE = 00512K RDR OOC CLS A PUN OOD CLS A COpy 01 PRT OOE CLS A COpy 01 CONS 01P ON DEV 051 DASD 190 2314 CMS370 R/O 056 CYL DASD 19A 2314 CMS190 RIO 055 CYL DASD 19E 2314 CMS190 RIO 026 CYL DASD 290 2314 PIDSK3 RIO 045 CYL DASD 330 3330 PIDSK4 R/W 020 CYL L-- __________________ __
After logon, issuing the QUERY VIRTUAL command permits a user to
verify the virtual machine configuration. The response indicates: • The storage size is 512K bytes. • SeIDe unit record devices have been defined.
56 IBM VM/370 Operating Systems in a Virtual Machine

• The console is 01F and is real device 051. • Devices 190, 19A, and 19E are used to operate CMS in this virtual machine. • Device 290 is not used and could have been deleted. • Device 330 is the 3330, 2o-cylinder, read/write minidisk that becomes
the virtual system residence volume for this virtual system when it
is running VM/370. • The volume serial numbers (volids) for the DASD devices are those of
the real disks on the real computing system.
link usecms 191 191 rr
ENTER READ PASSWORD: DASD 191 LINKED R/O; R/W BY USECMS The LINK ccmmand allows the user to access a userid that has a disk containing certain directory files. This example uses one of these
files to crea te a virtual system directory.
def 1f as 009 CONS 009 DEFINED
i cms CMS ••• FLOOR ••• mm/dd/yy Y (19E) R/O.
A (191) R/O. 013 USERS, 000 DIALED DMSACC113S 'B (196) , NOT ATTACHED. DMSACC113S 'c (194) • NOT ATTACHED.
R; __ . _____________ J
This segment shows the redefinition of console 01F as 009 before
issuing the CP IPL command. The error messages indicate that a PROFILE EXEC is running from the user's 191 disk; the PROFILE EXEC is attempting
tc access disks that are not defined in the virtual machine
ccnfiguration. However, these disks are not required to do a directory
load. r-- I listf * direct a I FILENAME FILETYPE MODE I V145A DIRECT A1
i USERTEST DIRECT A2 I USER DIRECT 11 I USER1 DIRECT A1 I R- ,
This LISTFILE command, issued in the CMS environment, shows that
there are four files with a filetype of DIRECT. This example uses the
one named V145A.
section 2. VM/370 in a Virtual Machine 57