> For the complete documentation index, see [llms.txt](https://docs.datasentinel.io/manual/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.datasentinel.io/manual/getting-started.md).

# Getting started

- [Architecture](https://docs.datasentinel.io/manual/getting-started/architecture.md): Datasentinel offers the flexibility to be used either On-Premises or in SaaS mode, with or without agents, enabling you to choose an architecture that best fits your needs.
- [Installation](https://docs.datasentinel.io/manual/getting-started/installation.md): For on-premises use of Datasentinel, platform installation is required. We advise utilizing a dedicated machine for optimal performance.
- [Platform](https://docs.datasentinel.io/manual/getting-started/installation/platform.md): Installation completes within minutes, ensuring that all components are operational upon completion.
- [Agent](https://docs.datasentinel.io/manual/getting-started/installation/agent.md): Datasentinel offers two monitoring approaches: agent-based and agentless. This guide focuses on the installation of an agent, applicable when you opt for the agent-based monitoring method.
- [PostgreSQL clusters](https://docs.datasentinel.io/manual/getting-started/postgresql-clusters.md): Datasentinel has the capability to monitor hundreds of PostgreSQL clusters, and a single connection to a cluster is sufficient for overseeing all the existing databases within it.
- [Extensions](https://docs.datasentinel.io/manual/getting-started/postgresql-clusters/extensions.md): Datasentinel harnesses the power of multiple PostgreSQL extensions to deliver in-depth monitoring metrics on specific areas.
- [pg\_stat\_statements](https://docs.datasentinel.io/manual/getting-started/postgresql-clusters/extensions/pg_stat_statements.md): The pg\_stat\_statements extension allows to trace the execution statistics of all queries. It is an essential extension in understanding the activity of a PostgreSQL cluster.
- [pg\_store\_plans](https://docs.datasentinel.io/manual/getting-started/postgresql-clusters/extensions/pg_store_plans.md): The PostgreSQL extension pg\_store\_plans is a contrib module that provides a way to store execution plans generated by the query planner.
- [system\_stats](https://docs.datasentinel.io/manual/getting-started/postgresql-clusters/extensions/system_stats.md): system\_stats is a PostgreSQL extension that provides functions to access system level statistics that can be used for monitoring
- [pg\_buffercache](https://docs.datasentinel.io/manual/getting-started/postgresql-clusters/extensions/pg_buffercache.md): pg\_buffercache is a PostgreSQL contrib module offering a real-time method for inspecting activities within the shared buffer cache.
- [Monitoring User](https://docs.datasentinel.io/manual/getting-started/postgresql-clusters/monitoring-user.md)
- [Adding Connection](https://docs.datasentinel.io/manual/getting-started/postgresql-clusters/adding-connection.md)
- [FAQs](https://docs.datasentinel.io/manual/getting-started/faqs.md)
- [Platform FAQ](https://docs.datasentinel.io/manual/getting-started/faqs/platform-faq.md)
- [Agent FAQ](https://docs.datasentinel.io/manual/getting-started/faqs/agent-faq.md)


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