system(4)
_________________________________________________________________
system File Format
format of DGC Eclipse MV/ computer system description file
_________________________________________________________________
DESCRIPTION
The system file contains information about the hardware and
system-dependent parameters found on your system. This
information is used in conjunction with one or more master files
as input into the config(1m) program. The config(1m) program is
used to configure the system. A more complete description of the
system file is found in Installing and Managing the DG/UX System
Each entry of the system file describes a particular device or
parmeter. The entry is a single line containing one or more
fields. Fields must be separated by one or more space and/or tab
characters.
The first field of the line determines the type of information
specified. Any line with a number sign (#) in column 1 is
treated as a comment and is ignored. Blank lines are also
ignored.
The system file is divided into two sections. The order of
sections and of lines within a section is arbitrary.
Device Selection Section
Entries in this section indicate which devices are to be
configured in the conf.c tables. Any device given here must also
appear in a master file.
The device selection entries can contain up to two fields as
follows:
devname devcode
Devname is the device name as given in a master file. Devcode is
the DG device code (octal) for this device. If there are two
contollers of the same device type, your system should have two
entries with the same device name but different device codes. If
you do not specify a devcode, a default device code supplied by
the device driver will be used.
In some cases you may find a third field following the devcode
field. This field shows the number of units (decimal) present on
the controller. The field is left in only as a comment and is
not used during configuration. The device driver determines the
DG/UX 4.00 Page 1
Licensed material--property of copyright holder(s)
system(4)
actual number of units at run-time.
Tunable Parameters Section
Entries in this section are used to change the value of constants
that the kernel uses for setting table sizes and performing other
configuration operations. The format is:
parameter value
The parameter must appear in a master file and overrides the
default value given there. Value can be ommitted if an implied
value is specified in the master file. The implied value may be
different from the default value.
SEE ALSO
master(4).
config(1m), sysdef(1m) in the System Manager's Reference to the
DG/UX System
Installing and Managing the DG/UX System
DG/UX 4.00 Page 2
Licensed material--property of copyright holder(s)