For example, if you want to run Passenger® Enterprise on a production cluster of 3 servers, with respectively 2, 16 and 4 GB of RAM, then the total RAM of your production servers combined is: 2 + 16 + 4 = 22GB.
Production Cluster’s Total RAM
E.g. customer facing servers. Starting at $19 p/m.
Non-Production Cluster’s Total RAM
E.g. testing, staging, development and QA servers. Starting at $9 p/m.