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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 GuideThe HCL OneDB™ Administrator's Guide provides the information required to administer HCL OneDB™.
Disk, memory, and process management
Virtual processors and threadsThese topics describe virtual processors, explain how threads run within the virtual processors, and explain how the database server uses virtual processors and threads to improve performance.
Virtual processorsA virtual processor is a process that the operating system schedules for processing.
Advantages of virtual processorsA virtual processor provides a number of advantages.
Add and drop virtual processors in online modeYou can add virtual processors to meet increasing demands for service while the database server is running.

Add and drop virtual processors in online mode

You can add virtual processors to meet increasing demands for service while the database server is running.

If the virtual processors of a class become compute bound or I/O bound (meaning that CPU work or I/O requests are accumulating faster than the current number of virtual processors can process them), you can start additional virtual processors for that class to distribute the processing load further.

For more information, see Add virtual processors in online mode.

Windows only: In Windows™, you cannot drop a virtual processor of any class.

While the database server is running, you can drop virtual processors of the CPU or a user-defined class. For more information, see Set virtual-processor configuration parameters.