I have 20gb of raster data. I can create a cache that is about 6gb. So instead of having a total of 26gb of data on the server could I delete the original data and just have my cache data? I'm experimenting with deleting the original data and I can see the cached data in ArcMap and ArcCatalog, but the Silverlight viewer basemap doesn't come up. Do some applications need to access the original data?