Joe, We're running 10.2.0.3 RAC on 22.214.171.124 Clusterware and ASM on a three-node cluster of HP DL-585s. The OS info is: $ cat /etc/redhat-release Red Hat Enterprise Linux AS release 4 (Nahant Update 6) $ uname -a Linux pqrac103 2.6.9-67.0.4.ELsmp #1 SMP Fri Jan 18 05:00:00 EST 2008 x86_64 x86_64 x86_64 GNU/Linux Finally, according to opatch: CRS is 126.96.36.199 w/ no interim patches ASM is 188.8.131.52 w/ patch #6139547 RAC is 10.2.0.3 w/ no interim patches Also, though you didn't mention it for your targeted config, on the same Clusterware and ASM, we are also running 11 RAC: RAC is 184.108.40.206 w/ no interim patches Hope that helps, -Mark PS I know you mentioned 11.1.07 and 10.2.0.4. The only reason we are on 220.127.116.11 and 10.2.0.3 is cause that's what was available when we built the cluster. It's been quite stable, so, we've not bothered with patching, so far. From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of TESTAJ3@xxxxxxxxxxxxxx Sent: Friday, April 17, 2009 1:07 PM To: oracle-l@xxxxxxxxxxxxx Subject: what version of linux/kernel/hardware platform are you running for RAC? We're attempting a pilot project for RAC 10g(10.2.0.4) on 11g clusterware(18.104.22.168) and 11g ASM., all kernel: 2.6.18-128.el5 on hp servers. We're having fits with kernel panics, kernel bugs, etc. Who is running this setup successfully and if you don't mind what is your setup? thanks, joe _______________________________________ Joe Testa, Oracle Certified Professional Senior Consultant Data Engineering and Administration Nationwide Investments (Work) 614-677-1668 (Cell) 614-312-6715 Interested in helping out your marriage? Ask me about "Weekend to Remember" Dec 11-13, 2009 here in Columbus.