On 5 January 2012 22:11, Pasi Kärkkäinen <pasik at iki.fi> wrote: > http://en.community.dell.com/techcenter/b/techcenter/archive/2012/01/03/dell-engineering-preview-oracle-11gr2-rac-on-rhel6.aspx > http://en.community.dell.com/techcenter/enterprise-solutions/w/oracle_solutions/3336.aspx And? First paragraph from the first link clearly states, I quote from it: DISCLAIMER: The following is Engineering Documentation provided by Dell and is a technology preview only. At this time the following configuration is not supported by Dell, Red Hat, or Oracle. The contents of this article should be only viewed as an engineering demonstration. What's the point? There is no justification for having RHEL/CentOS or even OEL6 and running a production Oracle instance on it. Months after RH's certification submission, Oracle still refuses to certify these platforms, even its own OEL6. If you are shelling out thousands, tens of thousands, hundreds of thousands (or millions according to a suggested architecture I reviewed today) for a customer, go and get a supported OS. If you have the time to tinker with it to get it working, excellent, I'm sure plenty of lessons learned - I had it running on single DB RHEL6 ages ago and it works fine. Will I suggest to a customer? No. Will I risk any development on it? No. Will I recommend it to anyone? No. I am running Oracle 11gR2 on my Kubuntu 11.10 work laptop and it runs fine but the same applies - no recommendation to a customer, no production instance, no test instance, no certification from Oracle hence no support expected from them.