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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 processor classesEach class of virtual processor is dedicated to processing certain types of threads.
CPU virtual processorsThe CPU virtual processor runs all session threads (the threads that process requests from SQL client applications) and some internal threads.
Prevent priority agingSome operating systems lower the priority of long-running processes as they accumulate processing time, a feature of the operating system known as priority aging.

Prevent priority aging

Some operating systems lower the priority of long-running processes as they accumulate processing time, a feature of the operating system known as priority aging.

Priority aging can cause the performance of database server processes to decline over time. In some cases, however, you can use the operating system to disable this feature and keep long-running processes running at a high priority.

To determine if priority aging is available on your computer, check the machine notes file that comes with your installation and is described in the Introduction to this guide.

If you can disable priority aging through the operating system, you can disable it by specifying noage for the priority entry in the VPCLASS configuration parameter. For more information, see the HCL OneDB™ Administrator's Reference.