PERCON is installed by means of the installation monitor IMON. This means that it is not bound by any fixed file names or IDs.
PERCON can also be used as a subsystem with the options for exchangeability (EXCHANGE) and coexistence (COEXISTENCE) available in PERCON V2.6A or later.
Installation information on all software products is stored in the IMON software configuration inventory, and can be retrieved using IMON commands.
The following information is required to determine the location of a product file:
the product name (PERCON)
the logical file ID (e.g. SYSLNK)
the product version (030)
If a fully qualified version specification is submitted with the VERSION parameter of the START-PERCON command or in the parameter list of the UP call, that version is activated (provided the version has been installed properly). If no version is specified (i.e. if *STD applies) more than one version may match the specification. In this case, the command server or PERCON obtains all versions matching the specification during UP call processing. The final selection is made according to the following priorities:
The version which was specified with the /SELECT-PRODUCT-VERSION command.
The highest PERCON version installed with IMON
PERCON version V3.0A can be run under the BS2000 OS DX operating system. The overview given below shows the components of PERCON that are to be installed:
file name | logical ID | meaning |
PERCON | SYSPRG | Program file (compatibility) |
SYSLNK.PERCON.030 | SYSLNK | Object module library |
SYSREP.PERCON.030 | SYSREP | Rep file |
SYSNRF.PERCON.030 | SYSNRF | BLS rep processing |
SYSRMS.PERCON.030 | SYSRMS | RMS selectable unit |
SYSSDF.PERCON.030 | SYSSDF | SDF syntax file |
SYSMES.PERCON.030 | SYSMES | Message file |
SYSSSC.PERCON.030 | SYSSSC | subsystem catalogue |
SYSSSC.PERCON.030.LOW | SYSSSC.LOW | subsystem catalogue (below 16 Mb) |
SYSSII.PERCON.030 | SYSSII | Structural and installation information file |
Additional information:
In SYSSSC files without the suffix LOW, the MEMORY-CLASS parameter has been set to a value that ensures that the subsystem is loaded in the higher address space (i.e. > 16 Mbytes). The PERCON subsystem, however, is loaded in the lower address space (i.e. < 16 Mbytes) if the SYSSSC files with suffix LOW are used.