Managing a 1 TB PostgreSQL database in Amazon RDS costs approximately $2322 per month, based on calculations for the European region. This figure includes expenses for storage performance, such as 12 000 IOPS and 500 MiB/s throughput, but excludes potential additional charges for data transfer and specific infrastructure configurations.
In contrast, renting a dedicated server for similar workloads ranges from 27 307 ₽ to 37 177 ₽ (approximately $333–453) per month. This approach offers full control over hardware resources without hypervisor overhead, potentially reducing infrastructure rental costs by five to seven times compared to cloud-based managed services.
Companies like 37signals and Prerender.io have successfully migrated from cloud providers to physical hardware. Prerender.io reported an 80% reduction in server costs, saving approximately $800 000 annually, while 37signals recouped its $700 000 investment in Dell equipment within a year.
Migrating large databases requires careful planning to minimize downtime. Logical replication is a recommended method for transferring data from Amazon RDS to a new server, allowing for a minimal switchover window. Alternatively, tools like pg_dump or pglogical can be utilized depending on the specific database version and requirements.
PostgreSQL is noted for its performance advantages over MySQL in large-scale environments, specifically through features like parallel query execution, diverse indexing options (GIN, GiST, BRIN), and declarative partitioning. These capabilities allow for more efficient resource utilization when handling terabyte-scale datasets.
