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NUMAIOVPS

onconfig.std value
None
if not present
(2 * number_of_chunks) or 6, whichever is greater; number_of_chunks is the number of chunks that you have allocated.
units
Number of AIO VPs
range of values
Integer greater than or equal to 1
takes effect
When the database server shuts down and restarts
utilities
onmode -p in Add or Remove Virtual Processors
refer to
The following material:

NUMAIOVPS specifies the number of virtual processors of the AIO class to run. Unless kernel asynchronous I/O is implemented, the AIO virtual processors perform all the database server disk I/O, other than I/O to the log files.

Important:
It is recommended that you specify the number of AIO VPs with VPCLASS aio instead of NUMAIOVPS. You cannot use both NUMAIOVPS and VPCLASS aio in the same ONCONFIG file.
UNIX Only

If your platform has kernel-asynchronous I/O (KAIO) turned on, the database server uses AIO virtual processors to perform I/O only to cooked chunks. The database server uses KAIO to perform all I/O to raw disk space and to the physical and logical logs. For details, see the machine notes.

End of UNIX Only
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