System Parameter

Description

IGNORE

Ignore subsequent INCLUDE errors

INCLUDE

Include configuration file

IODELAY

I/O interrupt wait time (LINUX)

LDMOD

Additional dynamic load modules

LEGACYSENSEID

SENSE ID CCW (x’E4’) feature

LOADPARM

IPL parameter

LOGOPT

Logging options

LPARNAME

LPAR name returned by DIAG x'204'

LPARNUM

LPAR identification number

MAINSIZE

Main storage size

MANUFACTURER

STSI manufacturer code

MAXCPU

Maximum number of CPUs

MAXRATES

MIPS/SIO rate reporting interval

MEMLOCK

Lock Hercules memory

MODEL

STSI model code

MODPATH

Dynamic load module path

MOUNTED_TAPE_REINIT

Control tape initialization

MSGHELD

Timeout value of held messages

MSGLEVEL

Message display output

MSGLVL

Message display output (alias for MSGLEVEL)

NUMCPU

Number of emulated CPUs

NUMVEC

Number of vector facilities

OSTAILOR

Tailor trace information for specific oprating system

PANRATE

Console refresh rate

PANTITLE

Console window title

PGMPRDOS

LPP license setting

System Parameter

Description

PLANT

STSI plant code

QUITMOUT

Quit timeout value

REXX

REXX interpreter settings

SCLPROOT

SCLP base directory

SCPECHO

Echo to console and history of SCP replies

SCPIMPLY

Pass non-Hercules commands to the SCP

SCSIMOUNT

Automatic SCSI tape mounts

SHCMDOPT

Shell command option

SHOWDVOL1

Enable showing of DASD volsers in device list

SHRDPORT

Shared device server port

SRVPRIO

Server threads priority

SYMPTOM

Instruction trace display option (alias for
TRACEOPT)

SYSEPOCH

Base date for TOD clock

TIMERINT

Internal timer update interval

TODDRAG

TOD clock drag factor

TODPRIO

Timer thread process priority

TRACEOPT

Instruction trace display option

TZOFFSET

TOD clock offset from GMT

XPNDSIZE

Expanded storage size

YROFFSET

TOD clock offset from actual date

Table 1: Hercules System Parameters

4.3 Device Definitions

The device definitions describe the layout of the emulated hardware i.e: DASD, tape, terminals and prin-
ters. It is comparable with the IOCDS found in a real mainframe environment. Each emulated device must
be specified in this part of the configuration file.

The following table shows an overview of all valid devices: