What storage is supported with Standard Edition RAC?
As per the licensing documentation, you must use ASM for all database files with SE RAC. There is no support for CFS or NFS.From Oracle Database 10g Release 2 Licensing Doc:Oracle Standard Edition and Real Application Clusters (RAC) When used with Oracle Real Application Clusters in a clustered server environment, Oracle Database Standard Edition requires the use of Oracle Clusterware. Third-party clusterware management solutions are not supported. In addition, Automatic Storage Management (ASM) must be used to manage all database-related files, including datafiles, online logs, archive logs, control file, spfiles, and the flash recovery area. Third-party volume managers and file systems are not supported for this purpose.