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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 Informix® database servers.
Administrator's ReferenceThe includes comprehensive descriptions of HCL Informix® 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 Informix®
Database configuration parametersThe Informix® 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.
PFSC_BOOST configuration parameterUse the PFSC_BOOST configuration parameter to enable or disable the boosted partition free space cache feature.

PFSC_BOOST configuration parameter

Use the PFSC_BOOST configuration parameter to enable or disable the boosted partition free space cache feature.

onconfig.std value: PFSC_BOOST 1
values: 0 = Boosted Partition Free Space Caches disabled
1 = Boosted Partition Free Space Caches enabled
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.

Usage

Set the PFSC_BOOST configuration parameter to 0 to prevent boosted PFSCs from being created.

For more information, see Boosted Partition Free Space Caches (PFSC).

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