r I Real I Cylinder I I 0 I I 1 , I 2 I I 3-4 , I 5 I I 6-7 I , 8 , , 9-19 I I 20 21-55
56-64
65-554
Number of Cylinders 1
1
1
2
1
2
1
11
1
35
9 490 Apr il 1, 1981 Starter Systems contents VM/370 directory
191 minidisk for the IVPK1 user
191 minidisk for the IVPM2 user CP nucleus Warm start data I/O Error Recording area Spool file checkpoint Spooling and paging space
191 minidisk for the CPGEN user 190 minidisk (the CMS system disk) for the CMSSYS user The nucleus occupies the
cylinder of the minidisk.
last
194 minidisk of the CPGEN user -it contains
the CP object modules (text Not used.
Fiqure 25. Format of a 3350 Restored Disk CPGEN, CMSSYS, IVPM1, and IVPM2 are user identifications that own
certain minidisks on the starter system volume. CPGEN is the userid of the operator
control the real system and to build
installation) • (that is, you use this userid to
a version of CP tailored to your CMSSYS is a directory entry on the starter system volume that owns CMSSYS 190 (the eMS system disk). CPGEN has a read-only link to CMSSYS 190 in order to use it to create the new system. Using this link, the CPGEN user can read from, but not write on, the 190 minidisk belonging
to the CMSSYS user. IVPM1 and IVPM2 are used with the Installation Verification Procedure
to test the new system. Part 3. Generating VM/370 (CP, CMS, RSCS, and IPCS) 235

Starter Systems Step 6. IPL the Starter System
Load (IPL) the starter system from the disk you restored it to. In our
example the address is 130. At this point, only the device containing
the system residence volume, 130, is known to the starter system.
Remember, if you have control units that share more than 16 devices
and are also switchable to another processor, the channel interface
enable switch from the other processor should be in the disable position
while you perform the system generation. Step 7. Define the Devices Needed To Do the
System Generation
If your system console is at an address other than 009 or 01F, after you
load the starter system you must press the Request key (or equivalent
key) to enable the starter system to recognize the system console. If the console is not recognized, the starter systew enters a
disabled wait state with code X'27' in the PSi. Note: Either an unrecoveratle I/O error occurred or the system input was
incorrect. Determine the cause of the problem and correct it; then
reload the starter system.
At this point both the system residence volume and system console are
recoqnized by the starter system and you can define the other devices
you need. The starter system supports up to 16 channels, 8 control
units, and 16 devices. The real control blocks for these devices are not
built in the standard manner; the starter system builds them
dynamically.
The starter system program then prompts you to answer the
followinq guest ions until all the real control blocks necessary to
operate a m1n1mum machine configuration are created. The following
example assumes: a 1403 printer at address OOE, a 2540 card reader/punch
at addresses OOC (reader) and OOD (punch), tape drives at addresses 280 and 281, and a DASD device appropriate for the new system residence
volume at address 131. The messages you receive at this time are: VM/370 STARiER SYSTEM RElEASE n
ENTER PRINTER ADDRESS (CUU):OOe ENTER DEVICE TYPE (1403,1443,3203,3211,3800) :1403 ENTER PUNCH ADDRESS (CUU):OOd ENTER DEVICE TYPE(2540P,3525):2540p ENTER READER ADDRESS (CUU) :OOc ENTER DEVICE TYPE (2501,2540R,3505) :2540r ENTER ADDRESS WHERE PIn TAPE IS MOUNTED (CUU) :280 ENTER DEVICE TYPE (2401,2415,2420,3420) :2401 ENTER ADDRESS WHERE SCRATCH TAPE IS MOUNTED (CUU) :281
ENTER DEVICE TYPE (2401,2415,2420,3420) :2401 ENTER DEVICE ADDRESS WHERE SYSTEM RESIDENCE WILL BE BUILT (CUU) :131
ENTER DEVICE TYPE (2319,2314,3330,3340,3350,2305) :device type ***SYSTEM DEFINITION COMPIETED*** OOE PRINTER 000 PUNCH DOC READER 280 PID TAPE 281 SCRATCH TAPE 131 NEW SYSTEM RESIDENCE ARE THE ABOVE ENTRIES CORRECT (YES, NO) :yes
236 IBM VM/370 Planning and System Generation Guide