informix online 7.22.uc3 is runing on sco openserver 5.0.5.
I want to use KAIO. Atfter I set the paramter KAIOON=1,and restart the engine , the "online.log" file appear the follow error messages:

10:34:34 KAIO: error in kaio_read, kaiocbp = 915854f8, errno = 14
10:34:34 fildes = 4 (gfd 3), buf = 9186d400, nbytes = 61440, offset = 1194104832


Please help me ,thanks,
'

Check your release notes regarding KAIO on sco in $INFORMIXDIR/release. It's^possible you need to take some additional action.
F.ex. HP does not support KAIO.
in AIX you have to make an aio device...
Stuff like that.

Errno 14 is an OS error. Check in your errno.h file
I think it's in /usr/sys/include/errno.h or something like that...

thank you.
I had read the release file. The version of SCO support KAIO.
I had do that follow the construction.

This is what I found in thje release notes. Are these running?

The following is a pre-requisite for using KAIO in SCO:
- SCO AIO driver "aio" is installed and enabled.
- SCO driver "suds" is installed and enabled.

Could you check these kernel parameters:

NAIOPROC 16
NAIOREQ 400
NAIOBUF 400
NAIOHBUF 50
NAIOREQPP 200
NAIOLOCKTBL 20

These are the suggested values. If the error still occurs, try increasing the NAIOREQ parameter.

thank you very much.
I did not change the kernel parameter.
I try to change it now.
thks.