User`s guide

C
Initialization Parameters and the Parameter File C-1
C Initialization Parameters and the Parameter
File
Every time SQL*Plus starts an Oracle Database instance, it uses a set of parameters
which specify the characteristics of the instance's operation. These parameters are kept
in a file, typically named
sid . DBS . INIT . ORA .
This appendix lists unsupported parameters, and lists other parameters that you may
need to change to customize the Oracle Database for the system.
Refer to the Oracle Database Reference manual for general descriptions of the parameters
listed in this Appendix.
C.1 Example Parameter File
The $ORAC1120.DEMO.DBS.INIT.ORA parameter file is created upon initial installation
and can be edited as a text file.
C.2 Unsupported Parameters
The following initialization file parameters, described in the generic documentation
are not supported by Oracle Database 11g for BS2000/OSD.
■ MAX_DUMP_FILE_SIZE
■ OS_ROLES
■ AUDIT_SYSLOG_LEVEL
■ MEMORY_MAX_TARGET
■ MEMORY_TARGET
Specifying these parameters in the initialization file results in an Oracle Database error
during startup. The workaround is to remove such lines from the file.
C.3 Additional Notes on Initialization Parameters
This section contains additional information about initialization parameters.
C.3.1 BACKGROUND_DUMP_DEST
This parameter specifies the path name (directory or prefix) where debugging trace
files for the background processes (LGWR, DBWn, and so on.) are written during
Oracle operations. Furthermore, it specifies the path name for the alert file. The default