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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.
RESTORE_POINT_DIR configuration parameterUse the RESTORE_POINT_DIR configuration parameter to change the path name of the directory where restore point files will be placed during a failed upgrade to a new version of the server. HCL OneDB™ will store restore point files in a subdirectory of the specified directory, with the server number as the subdirectory name, only if the CONVERSION_GUARD configuration parameter is enabled.

RESTORE_POINT_DIR configuration parameter

Use the RESTORE_POINT_DIR configuration parameter to change the path name of the directory where restore point files will be placed during a failed upgrade to a new version of the server. HCL OneDB™ will store restore point files in a subdirectory of the specified directory, with the server number as the subdirectory name, only if the CONVERSION_GUARD configuration parameter is enabled.

onconfig.std value: $INFORMIXDIR/tmp
value: Complete path name for a directory
takes effect: After you edit your onconfig file and restart the database server.

Usage

You can change the directory, for example, if you think that the $INFORMIXDIR/tmp directory does not have enough space for restore point data. If you want to change the directory, you must change it before you initiate an upgrade to a new version of the server. You cannot change the directory during an upgrade.

The directory specified in the RESTORE_POINT_DIR configuration parameter must be empty when an upgrade begins. If the directory contains any restore point files from a previous upgrade, you must remove the files before a new upgrade begins a new restore point.

Important:

The empty directory is a prerequisite before doing the upgrade, not when recovering from a failed upgrade. After a failed upgrade, do not empty the RESTORE_POINT_DIR directory before you attempt to run the onrestorept utility.

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