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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.
AUTO_LRU_TUNING configuration parameterUse the AUTO_LRU_TUNING configuration parameter to enable automatic LRU tuning, which automatically maintains enough clean pages for page replacement.

AUTO_LRU_TUNING configuration parameter

Use the AUTO_LRU_TUNING configuration parameter to enable automatic LRU tuning, which automatically maintains enough clean pages for page replacement.

onconfig.std value: AUTO_LRU_TUNING 1; Not set. If the AUTO_TUNE configuration parameter is set to 1, automatic LRU tuning is enabled.
values: 0 = Off
1 = On
takes effect: After you edit your onconfig file and restart the database server.; When you reset the value dynamically in your onconfig file by running the onmode -wf command.; When you reset the value in memory by running the onmode -wm command.; If an AUTO_LRU_TUNING value is not set in your current onconfig file and you edit the AUTO_TUNE configuration parameter and restart the database server

Usage

Automatic LRU tuning changes affect all buffer pools and adjust the lru_min_dirty and lru_max_dirty values in the BUFFERPOOL configuration parameter.

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