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AdministeringIn addition to administering the database server, you can tune performance, replicate data, and archive data.
System administrationThese topics contain concepts, procedures, and reference information for database and database server administrators to use for managing and tuning HCL OneDB™ database servers.
Administrator's ReferenceThe HCL OneDB™ Administrator's Reference includes comprehensive descriptions of HCL OneDB™ configuration parameters, the system-monitoring interface (SMI) tables in the sysmaster database, the syntax of database server utilities such as onmode and onstat, logical-log records, disk structures, event alarms, and unnumbered error messages.
Configuring and monitoring HCL OneDB™
Database configuration parametersThe HCL OneDB™ database server uses a configuration file, which is called the onconfig file, during initialization. This file contains default configuration parameter values. You can modify the parameter values to improve performance and other characteristics of the instance or database.
DS_TOTAL_MEMORY configuration parameterUse the DS_TOTAL_MEMORY configuration parameter to specify the amount of memory available for PDQ queries. The amount should be smaller than the computer physical memory, minus fixed overhead such as operating-system size and buffer-pool size.
Algorithm for DS_TOTAL_MEMORY

Algorithm for DS_TOTAL_MEMORY

The database server derives a value for DS_TOTAL_MEMORY when you do not set DS_TOTAL_MEMORY, or if you set it to an inappropriate value. For information on the algorithms, see configuration effects on memory utilization in your HCL OneDB™ Performance Guide.

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