I have a customer that does that - it apparently works very well, and they're considering getting rid of Veritas for their single-instance failover. I suppose it makes sense if you're already familiar with CRS for RAC deployments. However, the downside of CRS as single-instance is that both sides of the cluster need to be licensed for Oracle (as I understand the CRS license). Whereas with veritas, configured properly, you only have to license one side of the cluste.r Thanks, Matt -- Matthew Zito Chief Scientist GridApp Systems P: 646-452-4090 mzito@xxxxxxxxxxx http://www.gridapp.com -----Original Message----- From: oracle-l-bounce@xxxxxxxxxxxxx on behalf of Carmen Rusu Sent: Thu 8/23/2007 5:47 PM To: oracle-l@xxxxxxxxxxxxx Subject: 10.2 Clusterware with single instance failover? Hi, has anyone used 10.2 Clusterware with OCFS2 on RHEL5 to get single instance failover from one host to another? I would like to ask some questions about it. Thank you, Carmen Rusu