The VMFLOAD function is executed specifying the load list of CPLOAD and a control file of PTMX. PTMX is a special control file to experimental updates and PTFs. The series of asterisks are the CMS character, which CMS types or displays whenever the virtual
machine uses two seconds of processor time. At the completion of the load functicn i the spocl file is transferred to V145R and is available as a reader file. ,.--------------------------------------------, I !! I CP I ipl OOc I NUCLEUS LOADED ON CPDSK3 I DMKDSP450W CP ENTERED; DISABLED WAIT PSW I CP L-- The user is now finished using CMS for the directory and IPL deck
setup. The IPL of card reader OOC loads the nucleus, and the loader is
distributed with the following default I/O addresses: CONSOLE = 009 PRINTER = OOE ,.------------------------------------------ I close prt I PRT FILE 0190 TO V145R COpy 01 NOHOLD The CLOSE command causes VM/370 to place the nucleus load map in the
virtual reader. The fcllowing message indicates that this nucleus has
been loaded on the virtual disk. NUCLEUS LOADED ON CPDSK3 The virtual minidisk label must either be CPDSK3 or be defined in the DMKSYS mcdule. The virtual machine enters the disabled wait state after
producing a message from the real CP system. r-------------------, def 009 as 01f I I CONS 01F DEFINED I L- .J
The console must be redefined as 01F. This is the console address
that was in DMKRIO which was loaded as part of the CP nucleus • .-- I i cms I CMS • • • FLOOR • • • mm/dd/yy I I Y (19E) RIO I R; I read testnuc map I RECORD LENGTH IS '132' BYTES I R;
i 60 IBM VM/370 Systems in a Virtual Machine

Initializing CMS and reading TESTNUC MAP places the nucleus load map
on the test userid's CMS A-disk. By saving the load map on this disk,
the test system at the virtual CP level can use IPCS to access it and
create problem reports.
query virtual STORAGE = 00512K RDR OOC CLS A PUN OOD CLS A TO V145R PRT OOE CLS A COpy 01 CONS 01F ON DEV 051 DASD 190 2314 CMS370 RIO 056 CYL DASD 191 2314 PIDSK3 RIll 010 CYL DASD 194 3330 PIDSK5 RIO 060 CYL DASD 196 3330 PIDSK7 RIO 010 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 RIll 020 CYL L--- The QUERY VIRTUAL command displays the current virtual machine
ccnfiguraticn. This is the configuration that was used to run the CES machine, except that the console address has been changed to 01F. Before initializing the virtual 330 disk and bringing in VM/370, it is
Decessary to redefine the disk addresses so that they can be recognized
by the VM/370 system. define 190 as 130 DASD 130 DEFINED
define 194 as 331 DASD 331 DEFINED
define 196 as 332 DASD 332 DEFINED
define 1ge as 131 DASD 131 DEFINED
link virtest 191 333 r
ENTER READ PASSWORD: DASD 333 LINKED RIO These DEFINE com.ands and the LINK command change the configuration
cf the virtual machine so that it can be recognized by the virtual VM/370 nucleus. Note that the 2314s are defined in the 2314 range of 130 to 137 and that the 3330s are defined in the 3330 range of 330 to
337. The LINK command is used to access another user's disk as a 3330 at address 333. Section 2. VM/370 in a Virtual Machine 61