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'''SYSGEN''', or the '''System Generation Utility''', is a utility that facilitates management of [[System | '''SYSGEN''', or the '''System Generation Utility''', is a utility that facilitates management of [[System Parameters|system parameters]], [[Page File|page]], [[Swap File|swap]] and [[Dump File|dump]] files, and other system settings (see Uses below). It resides in [[SYS$SYSTEM]] and is invoked with RUN or MCR. | ||
=Uses= | =Uses= | ||
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[[System Parameters|System parameters]] and the site-independent startup command procedure values are stored in a files, and SYSGEN needs to know which file to use for displaying and modifying these values. The following parameter files can be used: | [[System Parameters|System parameters]] and the site-independent startup command procedure values are stored in a files, and SYSGEN needs to know which file to use for displaying and modifying these values. The following parameter files can be used: | ||
* ACTIVE - the active system in memory (loaded by default) | * ACTIVE - the active system parameter value in memory (loaded by default) | ||
* DEFAULT - a parameter set build into SYSGEN that allows the operating system to boot on any standard configuration | * DEFAULT - a parameter set build into SYSGEN that allows the operating system to boot on any standard configuration | ||
* CURRENT - the current system parameter file on disk (SYS$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$SYSTEM:IA64VMSSYS.PAR on [[Integrity]]). | ||
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=See also= | =See also= | ||
* {{Template:UtilitiesII}} for use instructions | * {{Template:UtilitiesII}} for use instructions | ||
[[Category:Utilities]] | |||
Latest revision as of 18:58, 12 December 2019
SYSGEN, or the System Generation Utility, is a utility that facilitates management of system parameters, page, swap and dump files, and other system settings (see Uses below). It resides in SYS$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