Servers for Databases

Databases want fast storage, enough RAM for the working set, and consistent performance. Dedicated hardware delivers all three without the per-IOPS pricing of cloud block storage.

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By the RentServers team at Wells Software Consulting LLC · Updated October 16, 2026

Recommended setup

OLTP (Postgres, MySQL)	High-memory dedicated server with NVMe in RAID 1/10
Analytics (ClickHouse)	Many cores, large NVMe, high memory bandwidth
Cache (Redis, Valkey)	High-memory server; CPU less important
Resilience	Replica in a second facility

Size RAM to your working set, not your total data size, and put write-ahead logs on the fastest NVMe available.

Always run a replica. A single dedicated server is a single point of failure, however reliable the hardware.

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