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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.
Administrative Utilities
The onmode utilityUse the onmode utility to change the database server operating mode and perform various other operations on shared memory, sessions, transactions, parameters, and segments.
onmode -wf, -wm: Dynamically change certain configuration parametersUse the onmode -wf or onmode -wm command to dynamically change specific configuration parameters.
onmode -wm: Change LRU tuning statusYou can use the onmode -wm option to change the LRU tuning status without updating the onconfig file.

onmode -wm: Change LRU tuning status

You can use the onmode -wm option to change the LRU tuning status without updating the onconfig file.

Figure 1: Syntax:


Element	Purpose	Key considerations
-wm	Dynamically sets the value of the specified configuration parameter for the current session.	None.
`0`	Turns off automatic LRU tuning for the current session.	None.
`1`	Turns on automatic LRU tuning for the current session.	None.

This command has an equivalent SQL administration API function.

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