Greetings, I am working with Oracle 10gR2 (10.2.0.3.0) on a two node RAC cluster running on Linux RHEL3. My questions... 1)Is ASMLib required? 2)If so must one configure the disks prior to creating the ASM instance or will the DBCA take care of that? If it is not required what are the advantages of using it? Thanks. Bill Wagman Univ. of California at Davis IET Campus Data Center wjwagman@xxxxxxxxxxx (530) 754-6208 -- //www.freelists.org/webpage/oracle-l