Hi, I wonder if anybody can explain this sudden change in the CPU patch instructions for RAC (which actually has a big impact in production operations): - CPUs are cumulative as confirmed in the README 'Critical patch update (CPU) patches are cumulative, which means fixes from previous Oracle security alerts and critical patch updates are included.' - JUL 06 CPU RAC post install stated than when running post-install: "No user should be accessing the selected instance and all other instances must be shutdown." - OCT 06 CPU RAC post install: "Users can continue to access the database during the post-installation steps." Cheers, L. -- //www.freelists.org/webpage/oracle-l