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We are using 1.5TB hard disk and 128GB RAM machine for storing map data using nominatim. Now the OSM data is growing faster. If it needs more than 2TB means,how can it be handled? How it will affect the performance? |
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In Postgres you can move each table and index to a so called 'tablespace', which is a path in the file system. http://www.postgresql.org/docs/9.3/static/manage-ag-tablespaces.html This way you can split the database onto several harddrives. The largest tables (planet_osm_ways, planet_osm_nodes, place) are all below 100GB. I/O performance will probably be slightly better by using two harddrives. |
How to do RAID configuration for a machine with 128GB RAM and more than 4TB hard disk? will it affect I/O performance?