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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 GuideThe Informix® Administrator's Guide provides the information required to administer HCL Informix®.
Disk, memory, and process management
Manage virtual processorsThese topics describe how to set the configuration parameters that affect database server virtual processors, and how to start and stop virtual processors.
Start and stop virtual processorsWhen you start the database server, the oninit utility starts the number and types of virtual processors that you specify directly and indirectly.

Start and stop virtual processors

When you start the database server, the oninit utility starts the number and types of virtual processors that you specify directly and indirectly.

You configure virtual processors primarily through configuration parameters and, for network virtual processors, through parameters in the sqlhosts information.

You can use the database server to start a maximum of 1000 virtual processors.

After the database server is in online mode, you can start more virtual processors to improve performance, if necessary.

While the database server is in online mode, you can drop virtual processors of the CPU and user-defined classes.

To shut down the database server and stop all virtual processors, use the onmode -k command.

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