Our team frequently creates mosaic datasets, and adds rasters to them. We keep older datasets (and rasters) for archival purposes.
Now that we're running low on disk storage, we'd like to remove some of the older rasters. But we're not sure whether doing so breaks existing services. To that end, we'd like to know what ArcGIS creates when rasters are added to a mosaic dataset. Does ArcGIS replicate the rasters into the GDB folder? Or does it simply create metadata that points to the rasters at their source?