HP-UX KAIOON

I try to run Informix with async. kernel io on a HP Itanium 4 Processor Box running HP-UX 11v2 with Raw Devices. After all configuration steps no kio's showing in "onstat -g iov": IBM Informix Dynamic Server Version 10.00.FC4 -- On-Line -- Up 00:00:18 -- 5702588 Kbytes AIO I/O vps:class/vp s io/s totalops dskread dskwrite dskcopy wakeups io/wup errors msc 0 i 0.2 3 0 0 0 4 0.8 0 aio 0 i 6.0 108 56 11 0 109 1.0 0 aio 1 i 0.6 10 0 9 0 10 1.0 0 aio 2 i 0.1 2 0 1 0 2 1.0 0 aio 3 i 0.1 1 0 0 0 1 1.0 0 aio 4 i 0.1 1 0 0 0 1 1.0 0 aio 5 i 0.0 0 0 0 0 1 0.0 0 pio 0 i 0.0 0 0 0 0 1 0.0 0 lio 0 i 0.1 2 0 2 0 2 1.0 0 Unix kernel is configured with fs_async=1 and asyncdsk driver loaded. The following files exist in /dev: crw-rw-rw- 1 bin bin 101 0x000000 17. Feb., 10:59 async crw-rw-rw- 1 bin bin 101 0x000000 8. Sept. 2004 asyncdsk Environment variable KAIOON=1 /etc/privgroup entry looks like: informix MLOCK onconfig entry: VPCLASS kio,num=2,noage BUT, after initializing with oninit there is obviously no usage of the kernel async driver. The command output of "onmode -p +1 kio" trying to add more cpu vp's says: onmode: error when trying to change the number of kio virtual processor by 1. The minimum number of kio virtual processor required is 1. WATH'S WRONG???

'WATH'S WRONG??? ' Whats Wath wrong about?

Shouldn't there be any kio vp's in then onstat output?

if you want to add cpu vps onmode -p +1cpu assume you have char mode raw devs defined for your chunks??? a ls -lL <yourchunks> would be nice.... cooked files and block mode raw devs will not give KAIO!! i would also suggest that you look at NUMAIOVPS eq set it to a fixed value otherwise (thin ice) you may end up with a truckload of them Superboer. Alex schreef: > I try to run Informix with async. kernel io on a HP Itanium 4 Processor > Box running HP-UX 11v2 with Raw Devices. After all configuration steps > no kio's showing in "onstat -g iov": > > IBM Informix Dynamic Server Version 10.00.FC4 -- On-Line -- Up > 00:00:18 -- 5702588 Kbytes > > AIO I/O vps:> class/vp s io/s totalops dskread dskwrite dskcopy wakeups io/wup > errors > msc 0 i 0.2 3 0 0 0 4 0.8 > 0 > aio 0 i 6.0 108 56 11 0 109 1.0 > 0 > aio 1 i 0.6 10 0 9 0 10 1.0 > 0 > aio 2 i 0.1 2 0 1 0 2 1.0 > 0 > aio 3 i 0.1 1 0 0 0 1 1.0 > 0 > aio 4 i 0.1 1 0 0 0 1 1.0 > 0 > aio 5 i 0.0 0 0 0 0 1 0.0 > 0 > pio 0 i 0.0 0 0 0 0 1 0.0 > 0 > lio 0 i 0.1 2 0 2 0 2 1.0 > 0 > > Unix kernel is configured with fs_async=1 and asyncdsk driver loaded. > > The following files exist in /dev: > crw-rw-rw- 1 bin bin 101 0x000000 17. Feb., 10:59 async > crw-rw-rw- 1 bin bin 101 0x000000 8. Sept. 2004 > asyncdsk > > Environment variable KAIOON=1 > > /etc/privgroup entry looks like: > informix MLOCK > > onconfig entry: > VPCLASS kio,num=2,noage > > > BUT, after initializing with oninit there is obviously no usage of the > kernel async driver. > > > The command output of "onmode -p +1 kio" trying to add more cpu vp's > says: > > onmode: error when trying to change the number of kio virtual processor > by 1. The minimum number of kio virtual processor required is 1. > > WATH'S WRONG???

Alex wrote: > I try to run Informix with async. kernel io on a HP Itanium 4 Processor ... > onconfig entry: > VPCLASS kio,num=2,noage > > > BUT, after initializing with oninit there is obviously no usage of the > kernel async driver. > > > The command output of "onmode -p +1 kio" trying to add more cpu vp's > says: > > onmode: error when trying to change the number of kio virtual processor > by 1. The minimum number of kio virtual processor required is 1. > > WATH'S WRONG??? What makes you think that you need to add kio vps? -- Ciao, Marco ______________________________________________________________________________ Marco Greco /UK /IBM Standard disclaimers apply! Structured Query Scripting Language http://www.4glworks.com/sqsl.htm 4glworks http://www.4glworks.com Informix on Linux http://www.4glworks.com/ifmxlinux.htm

Thank you, that's it! There were two raw devices and I've chosen the block device instead of the character device.