Starter Systems If you do not wish to use the DDR program to backup your system, you
can load the tape produced in Step 18 in a virtual machine. If you load
the tape in a virtual machine that virtual machine must have (1) 512K of
storage and (2) write-access to the system residence volume, at the
address defined for system residence in the SYSRES macro of the CP system control (DMKSYS) file.
When you use the DDR program to backup
load map when you restore the tape. You the tape produced in Step 18.
your system, you do not get a
do get a load map if you load Step 21. Format the Operator's Virtual 191 O-isk Before any new minidisk area can be used for CMS files; it must be
initialized with the CMS FORMAT command, which formats the area into
BOO-byte blocks. Take care not to format areas which contain data
restored from the starter system (such as the 190 and 194 minidisks
belonging to the user MAINT). The CMS FORMAT command is described in
the VM/370 CommaDg MacrQ Reference. After you complete this step, a portion of the starter system is
overlaid by the operator's 191 minidisk. If for any reason you wish to
IPL the starter system again, you must start from Step 1.
At this time you are logged on
procedure to format your virtual
already loaded CMS, issue:
as the operator. Use disk 191. First, if
ipl 190 parm seg=null CMS responds with: CMS VERSION n.n -mm/dd/yy hh:mm
Next, enter the following command:
access (nodisk
the following
you have not
The NODISK option prevents CMS from automatically accessing your virtual
disk 191. (Accessing 191 at this time would cause an error message to be
issued because 191 is not yet initialized, and therefore cannot be
used.) After the Ready message is displayed, issue the command:
format 191 a
The CMS FORMAT command prompts you with the following message: FORMAT WILL ERASE ALL FILES ON DISK 'A(191)'. DO YOU WISH TO CONTINUE? (YESINO): If you respond "yes", CMS prompts you with:
ENTER DISK LABEL:
opr1
Q
1
Enter the one-to-six character alphameric label of the virtual disk. You can use whatever label you wish for this virtual disk. In this
example, the label is OPR191. CMS then issues: FORMATTING DISK 'A'. Inn' CYLINDERS FORMATTED ON 'A(191) '.
and a Ready message. Part 3. Generating VM/370 (CP, CMS, RSCS, and IPCS) 255

starter Systems Step 22. Format the MAINT User's Virtual 191 Disk
Initialize the 191 disk belonging to "lINT, in the same way you
initialized the operator's virtual 191. Log off the system and log on
again as userid "lINT, using the password CPC"S. Define your virtual
storage to be larger than the location of any discontiguous saved
segments that C"S may try to use at this time. (In this example, if you
used the D"KSNT provided with the starter system, define your virtual
storage as 2048K, or 2M). Then IPL C"S as follows:
define storage 2m
ipl 190 parm seg=null When the CMS Ready message is displayed, issue:
access (nodisk
and continue to format M1INT's 191, using the same procedure you used to
format OPR191. Step 23. Complete the Application of Service
Now that the M1INT 191 minidisk is formatted, you (as the "lINT user)
can complete the application of service with the changes supplied on the
system program Update Tape (PUT). Mount the system PUT if it is not
already mounted. You must attach the real tape drive to your CMS virtual
machine ("AINT); for example:
attach 280 to maint as 181
and, with the 191 minidisk that belongs to "AINT accessed as your
A-disk, rewind and load the tape:
vmfplc2 rew
vmfplc2 load CMS responds with the following message: LO lDING ••.•• 5749010 06pp38 5749010 EXEC VMSERV EXEC VMFPLC2 MODULE END-OF-FILE OR All
A1 11 A1 END-OF-TAPE To resume the application of service started in Step 13, issue the
commands:
access 191 c
vmserv restart 5749010 cp nomemo lWhere pp is the PUT number.
256 IBM VM/370 Planning and System Generation Guide