type v145a direct DIRECTORY 330 3330 CPDSK3 USER OPERATOR OPERATOR 256K 1M ABCDEFG ACCOUNT 12345678 COMP.RM CONSOLE 9 3215 SPOOL C 2540 READER A SPOOL D 2540 PUNCH A SPOOL E 1403 A
LINK USECMS 191 191 WR MDISK 196 3330 0 10 SYS196 RR RDGDEV MDISK 190 2314 0 56 CMS190 RR RDGDEV MDISK 19E 2314 0 26 FLRCMS RR RDGDEV USER USECMS TOM 256K 1M G ACCOUNT 12345679 ROOM331 CONSOLE 9 3215 SPOOL C 2540 READER A SPOOL D 2540 PUNCH A SPOOL E 1403 A LINK OPERATOR 196 196 RR
LINK OPERATOR 190 190 RR
LINK OPERATOR 19E 19E RR
----, MDISK 191 3330 0 9 USECMS WR RDGDEV WDGDEV MDGDEV MDISK 192 2314 T-DISK 5
DED 19A CaS19A R;
This segment requests a typed copy of file V145A DIRECT. The DIRECTORY statement specifies that the directory is to be written on a
3330 device at address 330 and that its virtual label is CPDSK3. This
address corresponds to the 3330 virtual disk that was shown and
discussed under the QUERY VIRTUAL command at the beginning of this Because this is a virtual disk, CPDSK3 is a virtual label, not
a real label. Thus, the virtual 3330 disk (CPDSK3) is on the real disk
labeled PIDSK4. This virtual disk was previously formatted, labeled,
and allocated by the CP format/allocate program (not shown in this
example) • Note: The user identified as OPERATOR has all privilege classes to easily control the virtual VM/370 system. The console and unit record
devices are defined to allow him to operate CMS. The virtual disks
defined for this userid have a displacement of zero and a size that does
net exceed the bounds of the virtual disks defined for the virtual VM/370 system. The volids specified on the directory statements are the
velids on the virtual disks for the virtual CP system. They are not the
velids of the real disks on which those virtual disks are defined for
the virtual CP system. I direct v145a I EOJ DIRECTORY UPDATED I R (00006) ; This segment shows the operation of the directory program in a
virtual machine. The file used to create the virtual directory is V1451 DIRECT, which was previously typed out. Note that the return code is 6.
The directory has been updated on the disk, but because this disk is a
virtual disk and net the real system residence disk
i the real CP system directory has not been modified. The return code of 6 is the normal
cede indicating this fact. However, a return code of 4, 5, or 6 is
acceptable.
58 IBM VM/370 Operating Systems in a Virtual Machine

I det 191 I DASD 191 DETACHED I R; Since the 191 disk of user USECMS is no longer needed, it is now
detached.
r
link cpsys 196 196 rr
ENTER READ PASSWORD: R;
link cpsys 194 194 rr
ENTER READ PASSWORD: R;
acc 196 a
'196' REPLACES ' A (191)
A (196) RIO. R;
acc 194 bla
B (194) RIO. R; L-- ___________________ . _________ _ Before dcing a virtual VMFLOAD function, it is necessary to access
the disks required to perform this function. The LINK commands define
the disks that contain the CP system to be tested in a virtual machine
environment. The CMS ACCESS commands access those disks and place them
in a read-only status. r-- , I spool pun * I I R; I L-- ___ . __ The CP SPOOL command transfers the output of the spool punch back to
this userid. This is required so that the user may later IPL the
virtual card reader to load the CP nucleus onto the virtual system
residence disk.
spool prt *
R; L-- ______ -..I The CP SPOOL command transfers the output of the printer back to this
userid. This transfer is required so that the user may later read in
the nucleus lead map used by IPCS for creating problem reports. I vmfload cpload ptmx I ************SYSTEM LOAD DECK COMPLETE I PCH FILE 0189 TO V145R I R; L--, _____________________________________ Section 2. VMj370 in a Virtual Machine 59