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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.
Performance GuideThe HCL OneDB™ Performance Guide describes how to configure and operate your HCL OneDB™ database server to improve overall system throughput and to improve the performance of SQL queries.
Effect of configuration on I/O activityThe configuration of your database server affects I/O activity.
Background I/O activitiesBackground I/O activities do not service SQL requests directly. Many of these activities are essential to maintain database consistency and other aspects of database server operation. However, they create overhead in the CPU and take up I/O bandwidth.
Configuration parameters that affect loggingThe LOGBUFF, PHYSBUFF, LOGFILES, LOGSIZE, DYNAMIC_LOGS, AUTO_LLOG, LTXHWM, LTXEHWM, SESSION_LIMIT_LOGSPACE, SESSION_LIMIT_TXN_TIME, and TEMPTAB_NOLOG configuration parameters affect logging. The LOGBUFF, PHYSBUFF, LOGFILES, LOGSIZE, DYNAMIC_LOGS, LTXHWM, LTXEHWM, and TEMPTAB_NOLOG configuration parameters affect logging.
SESSION_LIMIT_LOGSPACE and its effect on loggingThe SESSION_LIMIT_LOGSPACE configuration parameter specifies the maximum amount of log space that a session can use for individual transactions, and can prevent individual sessions from monopolizing the logical log.

SESSION_LIMIT_LOGSPACE and its effect on logging

The SESSION_LIMIT_LOGSPACE configuration parameter specifies the maximum amount of log space that a session can use for individual transactions, and can prevent individual sessions from monopolizing the logical log.

SESSION_LIMIT_LOGSPACE does not apply to a user who holds administrative privileges, such as user informix or a DBSA user.

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