Apr 1. .1. , , , 'j 0 , SYSRES Macro SYSRES Macro Use the SYSRES macro instruction to describe the characteristics of the CP system residence volume.
The name field
instruction.
must not be specified for the SYSRES macro lor Coding .the Mac£Q: The following
information should help you when you code the SYSRES macro: • All operands must be specified with appropriate values. • The cylinders required for SYSNUC, SYSERR, SYSWRM, and SYSCKP must be
formatted using the CP Format/Allocate service program, and must be
allocated as permanent space on the SYSRES volume, but not in
cylinder O. • VM/370 allows the 2314 or 2319 "alternate tracks" cylinders 200-202 - ----" data if they -- -, .- -.- .... defective tracks. • On a 3340, the "alternate tracks" cylinders can no longer be used for
normal data. (prev iously, these cylinders were sometimes used for
normal data.) On a 3340 Model 35, use only cylinders 0-347. On a 3340 Model 70, use only cylinders 0-695. • An MSS 3330V volume may not be used as the VM/370 SYSRES volume.
The format of the SYSRES macro is:
Name Operation SYSRES Operands SYSVOL=ser ial, S YSR ES=address, SYSTYPE=12305 ,
2314
2319
3330
3340
3350 SYSNUC=strtcyl, r , SYSEBR=[ (]strtcyl I, cylc ount I [)] 1,2 I L .J r , SYSC KP=[ (]strtcyl I, cy lc ount I [) 1 1,1 I L J r , SYSWRM=( (]strtcyl I, cylc ount I [) ] 1,1 I L J
168 IBM VM/370 Planning and System Generation Guide

SYSRES Macro SYSVOt=serial is the volume identification of the system residence disk. The
volume serial number, serial, is a character string with a maximum
length of 6 characters. SYSRES=address designates the device address of the DASD to contain the
newly-generated system. This address is used only when the VM/370 nucleus is generated and written on the disk. Thereafter, you can IPt the system from any addressable disk device. The address is a
3-digit hexadecimal device address. 2314
2319 \3350} is the device type of the system residence device.
For a 3350 device in native mode, specify 3350 as the device type.
For a 3350 being used in 3330 compatibility mode, specify 3330. Specify a 3344 disk as a 3340, and a 3333 as a 3330. 2305 applies
to both 2305-1 and 2305-2. SYSNUC=strtcyl is the number of the real starting cylinder where the CP nucleus
resides.
The cylinder strtcyl is a 1-to 3-digit decimal number.
Normally, a 2314 or 2319 device requires five contiguous cylinders,
a 2305 or 3340 device also requires five contiguous cylinders, a 3330/3333 device requires three contiguous cylinders, and a 3350 device requires two cylinders, to contain the CP nucleus. Systems being generated with the virtual=real option require
additional space. For information about how much space to allocate
for virtual=real configurations: see "Specifying the Amount of Virtual=Real Space" in Part 1.
r , SYSERR=[ (]strtcyl 1,cylcountl [)]
1,2 , L .J
is the number of the real starting cylinder where the error records
are written, and optionally the number of cylinders required for
error recording. The strtcyl is a 1-to 3-digit decimal number designating the
starting cylinder of the error recording area.
The cylcount is a 1-digit decimal
designating the number of cylinders.
r , SYSCKP=[ (]strtcyll ,cylcountl()] 1 , 1 I L
number between 2 and 9
is the number of
maximum number of
start data.
the real starting cylinder, and optionally the
cylinders, to contain the dynamic checkpoint Part 2. Defining Your VM/370 System 169