Difference between revisions of "SYSGEN"
m |
|||
| Line 10: | Line 10: | ||
[[System Parameters|System parameters]] and the site-independent startup command procedure values are stored in a files, and SYSGEN needs to know which file to use for displaying and modifying these values. The following parameter files can be used: | [[System Parameters|System parameters]] and the site-independent startup command procedure values are stored in a files, and SYSGEN needs to know which file to use for displaying and modifying these values. The following parameter files can be used: | ||
| − | * ACTIVE - the active system in memory (loaded by default) | + | * ACTIVE - the active system parameter value in memory (loaded by default) |
* DEFAULT - a parameter set build into SYSGEN that allows the operating system to boot on any standard configuration | * DEFAULT - a parameter set build into SYSGEN that allows the operating system to boot on any standard configuration | ||
* CURRENT - the current system parameter file on disk (SYS$SYSTEM:ALPHAVMSSYS.PAR on [[Alpha]] and SYS$SYSTEM:IA64VMSSYS.PAR on [[Integrity]]). | * CURRENT - the current system parameter file on disk (SYS$SYSTEM:ALPHAVMSSYS.PAR on [[Alpha]] and SYS$SYSTEM:IA64VMSSYS.PAR on [[Integrity]]). | ||
Revision as of 09:57, 16 July 2019
SYSGEN, or the System Generation Utility, is a utility that facilitates management of system parameters, page, swap and dump files, and other system settings (see Uses below). It resides in SYS$SYSTEM and is invoked with RUN or MCR.
Uses
- system parameter modification
- managing devices and device drivers (taken over by SYSMAN in modern versions of OpenVMS)
- creating and installing page, swap and dump files
- managing startup command procedures
Parameter Sets
System parameters and the site-independent startup command procedure values are stored in a files, and SYSGEN needs to know which file to use for displaying and modifying these values. The following parameter files can be used:
- ACTIVE - the active system parameter value in memory (loaded by default)
- DEFAULT - a parameter set build into SYSGEN that allows the operating system to boot on any standard configuration
- CURRENT - the current system parameter file on disk (SYS$SYSTEM:ALPHAVMSSYS.PAR on Alpha and SYS$SYSTEM:IA64VMSSYS.PAR on Integrity).
- custom - any file specification can be used. Parameter files can be created with the SYSGEN WRITE command.
See also
- OpenVMS System Management Utilities Reference Manual Vol. II (M-Z) for use instructions
