# Introduction

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We recommend that for production installation, the database used by SonarQube Server is hosted on a machine that is physically separate from the SonarQube Server host, with low latency between both hosts.
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For the requirements regarding the Data Center Edition, see [install-the-server-as-a-cluster](https://docs.sonarsource.com/sonarqube-server/2025.1/setup-and-upgrade/install-the-server-as-a-cluster "mention").

See:

* [server-host](https://docs.sonarsource.com/sonarqube-server/2025.1/setup-and-upgrade/installation-requirements/server-host "mention")
* [database-requirements](https://docs.sonarsource.com/sonarqube-server/2025.1/setup-and-upgrade/installation-requirements/database-requirements "mention")
* **Reference architectures:**
  * [up-to-10m-loc](https://docs.sonarsource.com/sonarqube-server/2025.1/setup-and-upgrade/reference-architectures/up-to-10m-loc "mention")
  * [up-to-50m-loc](https://docs.sonarsource.com/sonarqube-server/2025.1/setup-and-upgrade/reference-architectures/up-to-50m-loc "mention")