Re: turning on KAIO

From: Steven <steven_lee@jjsea.com> > >Just managed to upgrade my IDS from 7.24UC4X1 to 7.30UC7XB on HP-UX 11. > >Was trying to turn on KAIO by doing the following > >added >setenv KAIOON 1 >setenv IFMX_HPKAIO_NUM_REQ 2300 > >but was unable to start up my IDS. > >From the documentation, I seems to need HP KAIO driver "asyncdsk" but was >not able to find any patch resembling this anywhere on HP website. >Anyone got any idea on how I may proceed? Isn't it a mknod? >Btw, once, if, KAIO is started, I can reduce the number of aio vps to 2 or >something like that? Yep. ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

in article 898qqe$n2b$1@news.xmission.com, Obnoxio The Clown at obnoxio@hotmail.com wrote on 26/02/2000 10:41 PM: > > From: Steven <steven_lee@jjsea.com> >> >> Just managed to upgrade my IDS from 7.24UC4X1 to 7.30UC7XB on HP-UX 11. >> >> Was trying to turn on KAIO by doing the following >> >> added >> setenv KAIOON 1 >> setenv IFMX_HPKAIO_NUM_REQ 2300 >> >> but was unable to start up my IDS. >> >> From the documentation, I seems to need HP KAIO driver "asyncdsk" but was >> not able to find any patch resembling this anywhere on HP website. >> Anyone got any idea on how I may proceed? > > Isn't it a mknod? > >> Btw, once, if, KAIO is started, I can reduce the number of aio vps to 2 or >> something like that? > > Yep. > ______________________________________________________ > Get Your Private, Free Email at http://www.hotmail.com > Tried the following based on the release notes. 1. su root 2. /usr/sbin/mknod /dev/async c 101 4 3. chmod 0666 /dev/async do a "ls -al", I get the following crw-rw-rw- 1 root sys 101 0x000004 Feb 27 03:15 async When I tried to "oninit", the online.log file shows the following 03:17:39 Event alarms enabled. ALARMPROG = '/informix/D01/etc/no_log.sh' 03:17:45 DR: DRAUTO is 0 (Off) 03:17:45 Requested shared memory segment size rounded from 588KB to 592KB 03:17:45 Requested shared memory segment size rounded from 588KB to 592KB 03:17:45 Requested shared memory segment size rounded from 588KB to 592KB 03:17:45 Informix Dynamic Server Version 7.30.UC7XB Software Serial Number 03:17:45 Can't open /dev/async. KAIO disabled 03:17:45 Can't open /dev/async. KAIO disabled 03:17:45 Can't open /dev/async. KAIO disabled 03:17:45 Can't open /dev/async. KAIO disabled 03:17:45 Assert Failed: kaiothread() ERROR 03:17:45 Informix Dynamic Server Version 7.30.UC7XB 03:17:45 Who: Session(0, @, 0, 0) Thread(30, kaio, 0, 7) File: kaio.c Line: 2048 03:17:45 stack trace for pid 920 written to /tmp/af.1e26d8 And then IDS will not be started at all. Is it the way that I use mknod is wrong? or that the permission on /dev/async is wrong? Thanks again for all the help. Steven

>Tried the following based on the release notes. >1. su root >2. /usr/sbin/mknod /dev/async c 101 4 >3. chmod 0666 /dev/async > > >do a "ls -al", I get the following >crw-rw-rw- 1 root sys 101 0x000004 Feb 27 03:15 async > > >When I tried to "oninit", the online.log file shows the following >03:17:39 Event alarms enabled. ALARMPROG = '/informix/D01/etc/no_log.sh' >03:17:45 DR: DRAUTO is 0 (Off) >03:17:45 Requested shared memory segment size rounded from 588KB to 592KB >03:17:45 Requested shared memory segment size rounded from 588KB to 592KB >03:17:45 Requested shared memory segment size rounded from 588KB to 592KB >03:17:45 Informix Dynamic Server Version 7.30.UC7XB Software Serial Number >03:17:45 Can't open /dev/async. KAIO disabled >03:17:45 Can't open /dev/async. KAIO disabled >03:17:45 Can't open /dev/async. KAIO disabled >03:17:45 Can't open /dev/async. KAIO disabled You need to build a new kernel which has the async driver linked in. By default, it isn't on HP-UX. the easiest way to do this is via SAM. It's pretty trivial. And yes, you can then reduce the number of aiovps to 1. Neil