Dynamic subsystem management is started during BS2000 system initialization.
All the information necessary for DSSM initialization is entered via the parameter service. This information includes the name of the static subsystem catalog and the DSSM version number. If absolutely necessary, logging of DSSM-specific data for error diagnosis may be activated at this point.
The keyword for starting subsystem management is DSSM.
The maximum number of permissible parameter records is 16.
Format of the parameter record for starting dynamic subsystem management
Format | Meaning |
SSMCAT = name | Name of the static subsystem catalog |
VERSION = version | Version number of DSSM |
LOGGING = ON / OFF | Controls DSSM-specific logging for error diagnosis |
Subsystems which are not automatically set up during system initialization can be started in the BS2000 session with the START-SUBSYSTEM command.
Extract from the parameter file
/BS2000 PARAMS : /BEGIN DSSM SSMCAT=<name> 1. VERSION=<version> 2. LOGGING=OFF 3. /EOF : /END-PARAMS
Any DSSM version can use subsystem catalogs which were generated with particular SSCM versions (currently DSSM V4.3 and SSCM V2.3).
The control and parameter records need only be contained in the parameter file if systems support wishes to deviate from the following default values:
SSMCAT=$TSOS.SYS.SSD.CAT.X, VERSION=043 and LOGGING=OFF.The version number refers to all DSSM-specific file names (e.g. SYSLNK.DSSM.043, SYSREP.DSSM.043) and is specified with three digits (e.g. 043).
The statement LOGGING=OFF (default value) deactivates logging; (LOGGING=ON would generate a log of diagnostic data during startup of DSSM).