I would like to run a local instance of Nominatim, but my internal hard drive doesn’t have enough space to host OSM data for the entire United States (let alone the planet). Is it possible to place the PostgreSQL database on an external drive instead? If anyone has successfully implemented this approach, I’d love to hear more about your experiences.
(I’m sure that this method would result in slower import/processing times, but that’s not a major issue for my use case.)
Create a table space in postgresql. Then you can configure Nominatim to use that space instead of the default. Configuration Settings - Nominatim 5.1.0 Manual It’s 10 different settings because in the past the various Nominatim servers for openstreetmap.org had different sizes of harddrives and that gave most flexibility. If you use a flatnode file then remember it’s always 100GB regardless which region gets imported so maybe good to put that on the external drive, too.