Home
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
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.
Monitor virtual processorsMonitor the virtual processors to determine if the number of virtual processors configured for the database server is optimal for the current level of activity.
Monitor virtual processors with command-line utilitiesUse onstat -g options to monitor virtual processors.
The onstat -g ioq commandUse the onstat -g ioq option to determine whether you must allocate additional virtual processors. The command onstat -g ioq displays the length and other statistics about I/O queues.

The onstat -g ioq command

Use the onstat -g ioq option to determine whether you must allocate additional virtual processors. The command onstat -g ioq displays the length and other statistics about I/O queues.

If the length of the I/O queue is growing, I/O requests are accumulating faster than the AIO virtual processors can process them. If the length of the I/O queue continues to show that I/O requests are accumulating, consider adding AIO virtual processors.

For an example of onstat -g ioq output, see information in the HCL OneDB™ Administrator's Reference.