ids11.5 enable AIO on AIX 6.1

os: AIX 6.1 informix: ids11.5.fc6 Before AIX 5.x , To start ids ,It need to run 'mkdev -l aio0'. But under AIX 6.1, there are two question bothering me. 1. can not enable AIO ,the error message is: # /usr/sbin/mkdev -l aio0 mkdev: 0514-519 The following device was not found in the customized device configuration database: name = 'aio0' 2. Start ids is OK ,though failed to enable AIO.

This is not necessary on AIX 6.1: www.ibm.com/support/docview.wss?uid=swg21303183 Does "onstat -g iov" show "kio" entries? If so, it is using kernel AIO. Are you using raw devices? Regards, Doug Lawry "joe" <joeclhua@gmail.com> wrote in message news:bb5467fb-51bb-4796-9ae7-72fa18e5a83b@c34g2000pri.googlegroups.com... > os: AIX 6.1 > informix: ids11.5.fc6 > > Before AIX 5.x , To start ids ,It need to run 'mkdev -l aio0'. > But under AIX 6.1, there are two question bothering me. > > 1. can not enable AIO ,the error message is: > # /usr/sbin/mkdev -l aio0 > mkdev: 0514-519 The following device was not found in the customized > device configuration database: > name = 'aio0' > 2. Start ids is OK ,though failed to enable AIO.

#onstat -g iov IBM Informix Dynamic Server Version 11.50.FC6 -- On-Line -- Up 00:01:14 -- 501344 Kbytes AIO I/O vps:class/vp/id s io/s totalops dskread dskwrite dskcopy wakeups io/ wup errors tempops fifo 7 0 i 0.0 0 0 0 0 1 0.0 0 0 msc 6 0 i 0.0 1 0 0 0 2 0.5 0 1 aio 5 0 i 2.9 214 19 145 0 214 1.0 0 0 aio 8 1 i 0.0 3 0 3 0 3 1.0 0 0 pio 4 0 i 0.0 2 0 2 0 3 0.7 0 2 lio 3 0 i 0.0 2 0 2 0 3 0.7 0 2 I used cooked device.