Give this a try: http://www.linuxjournal.com/article/5840 http://www.quest-pipelines.com/pipelines/quest_experts.htm http://linuxtoday.com/news_story.php3?ltsn=2002-02-26-002-20-PS-HE-SV Linux Maximus, Part 1: Gladiator-like Oracle Performance By Bert Scalzo on Sat, 2002-02-23 00:00. Simple ways to achieve performance improvements using Linux for enterprise-level databases like Oracle. A good reference would likely be tpc reports for Oracle on one of the "Enterprise" Linux distributions. Might you consider benchmarking the clustered configuration against a stand-alone box, same OS, same version of Oracle (in other words, non-clustered, non-SAN)? also - dual boot laptops are pretty easy to maintain, if your hard drive is large enough (hint). hth. Paul <aside> yes, I have RHEL 3.0 ES update2 running on the laptop, along with XP sp2. WinXP SP2 was a huge incentive for booting into the RHEL side of things, btw. On Sat, 20 Nov 2004 18:30:12 -0500, Branimir Petrovic <branimirp@xxxxxxxx> wrote: > Situation: > Early stages of development project; same small database runs on > development PCs, early build is given to customer for "look and > feel" and training purposes. > > Sad facts: > "PC Vulgaris" (P4 @ 2.8 GHz with _one_ IDE drive running WinXP) > /w Oracle 9.2 db outperforms by factor of FIVE (meaning exact same > batch jobs run at least 5 TIMES FASTER!!!???) two node Oracle 9.2 > cluster on Linux (RH AS3). Beats it by huge margin it every single > time. > > Hardware at customer's site is 6 month old (implying relatively > new hardware) 2 P4-Xeon CPUs server forming two node Oracle 9.2 > cluster connected to dedicated (this cluster only, dedicated > to this project only) SAN (with unknown number of drives). > > Question: > If you were really incompetent SA/DBA what would be easy ways > to duplicate the above requirement? (achieve five times > worse performance using much "stronger" hardware) > > From whatever little I know of ways problematic database is set > up and configured, I'd say it is not the Oracle that is messed up, > but the underlying OS. > > Being at arms length from the problem (due to mountains of political > bs. - "us" vs. "them"), and quite frankly due to my own shortcomings > with Unix/Linux, I am in no position to help in any meaningful way. > Still curiosity factor is strong - what could possibly be so wrong > with this RAC? > > Wild guesses - welcomed :-) > > Branimir > -- > //www.freelists.org/webpage/oracle-l > -- //www.freelists.org/webpage/oracle-l