Ocfs2 users - Jul 2007 - ocfs2 for windows for use as cluster filesystem for rman

Hi,

i want to use OCFS2 for Windows as Clusterfilesystem for 2 Oracle
DB-Hosts (no RAC) to share rman backups between the two oracle hosts
for rman cloning. Is OCFS2 for Oracle free ? - or do i have
to license rac option in enterprise edition for using the crs
layer which includes the ocfs ?
Normal license for oracle enterprise edition exists.

rgds Helmar