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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.
SMX_COMPRESS configuration parameterUse the SMX_COMPRESS configuration parameter to specify the level of compression that the database server uses before sending data from the source database server to the target database server.

SMX_COMPRESS configuration parameter

Use the SMX_COMPRESS configuration parameter to specify the level of compression that the database server uses before sending data from the source database server to the target database server.

Network compression saves network bandwidth over slow links but uses more CPU to compress and decompress the data. The SMX_COMPRESS configuration parameter values of the two servers are compared and changed to the higher compression values.

onconfig.std value

SMX_COMPRESS 0

values

-1 = The source database server never compresses the data, regardless of whether or not the target site uses compression.

0 = The source database server compresses the data only if the target database server expects compressed data.

1 = The database server performs a minimum amount of compression.

9 = The database server performs the maximum possible compression.

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.

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