The ArcGIS Data Store component of ArcGIS Enterprise provides three types of out-of-the-box storage for your hosted web layers.
Keep web layer data in your authoritative databases and enterprise geodatabases by registering them with your federated servers.
Use folders and file shares as input for analysis, as a source for file-based web layer data, or as map and image cache storage.
Add the storage space you need for map and image caches, raster analysis data, or GeoAnalytics files without purchasing and maintaining hardware.
Learn about registering user-managed data stores in the portal.