Re: Informix v7.24 on HP-UX 10.20

Hey Neil -- Eric here... Please tell me that you are either using 7.24.UC4 or greater, OR that you have NOAGE=0. NOTE: THIS ONLY APPLIES TO HP ( AFAIK ) The reason is: Bug / Defects 55545 and 68612. Which read: Setting the NOAGE onconfig paramater equal to 1 causes the CPU VP to take all available cpu resources when AIO VPs are introduced to REAL-TIME class. ============== My experience is that it does all of that and then PANIC reboots the system. ============== The work around is to manually reschedule the VPs (all but AIO's). I have the process, if you need it. The fix for the problem is in the following minimum releases: 7.23.UC9, 7.24.UC4, and 7.30.UC2. The KAIO bug you refer to ( 92132 ) is fixed in the following releases: Patched 7.24.UC5XQ, Patched 7.24.UC6XB, and the scheduled GA of 7.24.UC8. Yes, I experience the effects of this bug also. It is nice to know that I have a kindred soul that I can commiserate with ( the same bugs, LAWSON, etc ). "Talk" to you later. Eric P. Melillo Sr. Database Administrator Associated Grocers, Inc. Seattle, WA 98118 vmail: (206) 767-8178 email: eric_melillo@agsea.com "Neil Truby" <ntruby@netcomuk.co.uk> on 01/20/99 01:32:18 AM Please respond to "Neil Truby" <ntruby@netcomuk.co.uk> To: informix-list@iiug.org cc: (bcc: Eric Melillo/AGInc) Subject: Informix v7.24 on HP-UX 10.20 We've recently upgraded to this version and had a lot of problems with it. I've posted pleas for help on some of these problems. We seem to have got to the bottom of them now, so may I share my experiences? I would point out that, as far as I know, these problems are specific to HP-UX: Originally we found that IDS would hang after a few minutes' operation. This problem was eventually remedied (after five weeks) by HP, who suggested, inter alia, setting RESIDENT=1. We've had no further hanging problems. Once we did go live we found that we had greatly reduced performance. This was most noticeable (in reality probably most measurable) in our regular batch suites and. for some reason, level 1 archives, whose elapsed times increased by a factor of three or more. Informix have now alerted me to bug warning 92132, which warns of severe I/O performance degradation using kaio on some versions of v7.2x. I have disabled kaio on our production engine and, as if by magic, the problems have gone away. So be warned! Neil Truby aracnet Limited Weybridge, UK