# Welcome

## What is Datasentinel?

Datasentinel is a cutting-edge platform designed to provide users with a streamlined and comprehensive visualization of their PostgreSQL environment. 

This innovative tool empowers database administrators and IT professionals by offering a suite of advanced monitoring features that ensure the optimal performance and availability of their PostgreSQL instances.

Datasentinel serves as a centralized hub that allows users to gain invaluable insights into the health and performance of their PostgreSQL databases. 

Precisely analyze the activity of your clusters, receive notifications in case of issues, and quickly identify your most resource-intensive processes, among many other essential features.

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The tool ensures seamless monitoring for PostgreSQL environments of any complexity,  from individual instances to extensive networks.
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[Release Notes](/manual/release-notes.md)
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## Key Features

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[Session History](/manual/features/key-features/session-history.md)
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[Top Queries](/manual/features/key-features/top-queries.md)
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[Top Tables](/manual/features/key-features/top-tables.md)
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[Lock Explorer](/manual/features/key-features/lock-explorer.md)
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[Cluster & System Metrics](/manual/features/key-features/cluster-and-system-metrics.md)
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[Live360](/manual/features/key-features/live360.md)
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[Reporting](/manual/features/key-features/reporting.md)
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[Alerting](/manual/features/key-features/alerting.md)
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## Getting Started

### Architecture

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[Architecture](/manual/getting-started/architecture.md)
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### *On-premises Installation*

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[Platform](/manual/getting-started/installation/platform.md)
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[Agent](/manual/getting-started/installation/agent.md)
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**OR**

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[Agentless Monitoring](/manual/features/other-features/agentless-monitoring.md)
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## How-to Guides

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[Organize Content Using Tags](/manual/how-to-guides/organize-content-using-tags.md)
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[Manage Users and Role-Based Access](/manual/how-to-guides/manage-users-and-role-based-access.md)
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[Monitor High-Availability Clusters](/manual/how-to-guides/monitor-high-availability-clusters.md)
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[Monitor Cloud-Managed Instances](/manual/how-to-guides/monitor-cloud-managed-instances.md)
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## Licensing information

Datasentinel is a commercial software solution. \
It operates on an annual subscription basis, with pricing determined by the number of PostgreSQL instances chosen. \
\&#xNAN;*An instance refers to a running PostgreSQL database cluster.* \
\
This licensing structure provides flexibility, scalability, and cost-effectiveness, allowing users to monitor and analyze their clusters efficiently. \
Contact our [sales team ](mailto:sales@datasentinel.io)for more information on licensing options.


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.datasentinel.io/manual/welcome.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.