I am working in one environemtn where SAN people say that they can;t give anything less than 75G for any LUN as it is already allocated. I need to create three Node RAC and I am only looking five 1G Luns but based on this size it is told that I have to use 75G LUN. So question is beside 100's of Gig space wastage, what are the other implication Like in starting/Stopping CRS or so. I need to provide more concrete reason to the business so that RAC is not affected. If this is fine, then we can go with the same TIA Sanjay