Use the map documents to create a multi-scale cache for each of the vector-based basemaps (Topographic, Light Grey Canvas, Imagery Reference).

1. Open an ArcMap document.
2. Reset the data sources in the map document to point to your data, if necessary. Your data must be in the UTDS database schema.
3. Share the map document as a Map Service.
4. For best performance, set the following properties in the Service Editor window.
   1. In the Parameters tab, set Anti-aliasing to Best and Force.
   2. In the Capabilities tab, uncheck the Mapping options for Data and Query.
   3. In the Caching tab, set the service to draw the map Using tiles from a cache.
   4. In the Caching tab, select the appropriate tiling scheme and the applicable scales for your data.
   5. In the Item Description tab, fill out the Item Summary, Tags, and Description.
   6. Use the Analyze button at the top of the Service Editor window to analyze your map for any errors.
5. Publish your map.

Once the basemaps have been published to your organizational portal, you can place all your basemaps into a single group that will be used exclusively for basemaps in the ArcGIS Portal Map Viewer.