You need to get yourself familiar with this Metalink document: Pre 11.2 Database Issues in 11gR2 Grid Infrastructure Environment [ID 948456.1] From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Lei Zeng Sent: Tuesday, April 12, 2011 3:51 PM To: ORACLE-L Subject: 220.127.116.11 clusterware and 10.2.0.4 database Hi, list: Anybody has been using this type of RAC combination: 18.104.22.168 clusterware + 10.2.0.4 database? Any known issue? Bugs? Thanks, Lei ________________________________ This message and its attachments may contain legally privileged or confidential information. It is intended solely for the named addressee. If you are not the addressee indicated in this message (or responsible for delivery of the message to the addressee), you may not copy or deliver this message or its attachments to anyone. Rather, you should permanently delete this message and its attachments and kindly notify the sender by reply e-mail. Any content of this message and its attachments that does not relate to the official business of News America Incorporated or its subsidiaries must be taken not to have been sent or endorsed by any of them. No warranty is made that the e-mail or attachment(s) are free from computer virus or other defect.