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CRF, at the bottom of the diagram, needs a special attention. The Cloud Raster Format is an Esri-created raster format that is optimized for writing and reading large files in a distributed processing and storage environment. We ran a few experiments to measure the performance of CRF and the performance of CRF is qutie amazing. There's only 0.4 second difference when CRF is put on S3 instead of local drive. This is quire quite remarkable because both THREDDS (e.g., Terra Fusion 600X slower Local vs. S3) and Hyrax (e.g., 90X slower EFS vs. S3) performs very poorly when data are served from S3.