SYSCYL=nnn April 1, 1981 NAl!ESYS Macro
is the real starting cylinder of the minidisk (specified by VSYSRES and VSYSADR) that is the system residence volume of
the system to be saved. This operand is ignored if VSYSADR=IGNORE, but you must specify it as null (SYSCYL=,). SYSSTRT= (cc,p)
designates the starting cylinder (cc) and page address (p) on SYSVOL at which this named system is to be saved. During the SAVESYS and IPL command processinq, this is used to generate
the "cylinder page and device" address for the DASD
operations. These numbers are specified in decimal.
The number of pages written to this area is the total number
specified via the SYSPGNM operand, plus one information page. SYSPGCT=pppp is the total number of pages (pppp) to be saved (that is, the
total number of pages you indicate via the SYSPGNM operand).
This is a decimal number, up to four digits. The SYSPGCT operand is optional; if you do not specify it, the NAMESYS macro will calculate the number of pages to be saved. SYSPGNM=(nn,nn,nn-nn, ••• )
are the numbers of the pages to be saved. Pages may be
specified singly or in groups. For example: if pages 0, 4, and 10 through 13 are to be saved, use the format: SYSPGNM=(0,4,10-13). The total must be equal to the SVSPGCT specification. SYSHRSG=(s,s, ••• )
as shared (numbered from
example, specified as 0). up at IPL time to be used
are the segment numbers designated
zero up, with the first segment, for
The pages in these segments are set
by any user loading by this name.
must be reenterable. The maximum
that can be defined is 78.
All segments to be shared
number of shared segments PROTECT= {g;F} indicates that VM/370 is to run either with protected (ON) or
unprotected (OFF) shared segments for the particular system. ON is the default. If a named system is specified as
unprotected, any changes made to shared pages in the named
system will not be detected by the VM/370 control program; the
change will be seen by all users of the shared page.
The number of 4K pages available per DASD cylinder is: 24
32
57 120 12!SD 3340-35, 3340-70, 2305 2314, 2319
3330, 3333 3350 (in native mode)
Information on the following subjects is in the Guige: • Determining when to save a system • Using the SAVESYS command • saving the CMS system • Saved system restrictions for CMS • Saving os • Usinq discontiguous saved segments (CMSDOS, CMSSEG, CMSVSAM, CMSAMS) Part 2. Defining Your VM/370 System 221

V.I.. 11;:) I1IJ.I....L..L I, J..J] J.l'1J.. NA HENCP Macro
Coding the NAMENCP Macro You must create an entry in the system name table (DMKSNT) for each
unique 3704/3705 control program that you generate. If you can foresee
generating several versions of the 3704/3705 control program, define
extra entries in the system name table when you generate VM/370. In
this way, you do not have to regenerate the VM/370 system just to update
the system name table. Use the NAHENCP macro to define 3704/3705 program entries in the
system name table. The format of the NAMENCP macro is: I label NAMENCP CPSIZE=nnnK, CPNAHE=ncpname, CPTYPE= {EP J SYSPGCT=pp, SYSV01=volser, SYSSTRT= (ccc, p) I I I I I L label CPSIZE=nnn K
is any desired user label.
is the storage size of the 3704/3705 specified during the 3704/3705 control program generation. A maximum of 256K
can be specified.
CPNAME=ncpname is the name of the 3704/3705 control program image. This
name is used in the SAVENCP and NETWORK LOAD commands.
The name must be from one to eight alphameric characters. CPTYPE={EP is the 3704/3705 control program type. SYSPGCT=pp is the total number of pages (pp) to be saved. This
decimal value may be equal to the number of pages implied
by the CPSIZE operand plus four pages for control
information, but it must not exceed that total. SYSV01=volser is the volume serial number (volser) of the DASD volume
designated to receive the control program image. That
volume must be a CP-owned volume. SY SST RT= (ccc, p)
is the starting cylinder (ccc) and page address (p) on SYSV01 at which this image is to be saved. These numbers
must be specified in decimal.
222 IBM VM/370 Planning and system Generation Guide