You can set and export the environment variable KAIOON=1 before starting the instance. Remember to configure the number of AIOVPS, NUMAIOVPS 1(version 7&9 or VPCLASS aio,num=1 version 9) in your onconfig.
The best way to check is onstat -g ath and look for kaio threads.
One question. Have you check the release notes for Solaris and your version of IDS to find out if KAIO is supported?
KAIO on AIX is required and the instance will abort if it's not turned on. It's installed at the Device level of the operating system. If the answer to the above question is yes, get with you sysadmin and find out where and if KAIO is enabled.
Of course if your sysadmin is as good as our sysadmin, he'll probibly think your talkling about a camp ground.
Solaris: KAIO is available for raw devices and Quick I/O files.
No special configuration is required.
My IDS version supports kaio.
I found this in a Informix manual:
When you configure a block device with a character-special interface, the device is called a raw device, and the storage space that the device provides is called raw disk space.
What do they mean with "configure a block device with a character-special interface"?
I have on the server, as always, block devices and raw devices.
Do i need a special configuration of the block device in order for Informix to support kaio or does it mean that i shall use the already existing raw device?