Re: HP AutoRAID question....

Billy, The main thing have noted on HP performance is that KAIO is slower than AIO VPs. But AIO VPs use a lot more CPU resources than KAIO. For example an archive on KAIO shows very little CPU usage, about 10% of 5 CPUS whereas using the AIO VPs uses 50% of three CPUs plus 5 - 10% of the other two. Which are you using? If the CPU % used is very low then check the IO queue info ie onstat -g ioq and onstat -g iov. We also are using AutoRAID. Jason On Tue, 3 Mar 1998 07:26:26 +0200, "Billy Wheeler" <billy@west.co.za> wrote: > >Bleatings. > >I have a client who has recently "upgraded" from an HP 9000 D-class >to an HP 9000 V-class, pretty much from the bottom of the range to >the top of the range. They have gone from two slow processors to >three very fast processors. However, response time on the new machine >is no better than it was on the old one. > >The onconfig file is largely the same, the only major difference is >that use is now made of more than one CPU VP. (OPTCOMPIND = 0, before >you ask... :-) > >The only other substantial difference between the two systems is that >the new machine has HP AutoRAID. It is my suspicion that this is what >is causing the relatively poor performance. > >The older machine was offering blinding performance, relatively >speaking, after a tuning session that included kernel, OnLine, >indexes and application. But I can't believe that I'm that good that >a machine about 50 times as powerful as the old one offers no >improvement.... :-) > >Any recommendations? Also, what other info do you need on the new >machine to offer comments? > >-- > >/Ciao, >\\Billy >/ >\\Group Managing Director, The West Solutions Group: http://www.west.co.za >/ Chairman, South African Informix User Group: http://www.west.co.za/~saiug >\\ Informix FAQ @ http://www.iiug.org/techinfo/faq/faq_top.html >/ Drivel @ http://www.west.co.za/tasteless/ >\\________________________________________________________________________________________________