> For the complete documentation index, see [llms.txt](https://docs.archera.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.archera.ai/help-center/azure-faq/sql-database-vcore-vs-dtu-reservations.md).

# Is Azure SQL Database Reservable on DTU or Only vCore?

## Short answer

Azure reservations only apply to **vCore-based** Azure SQL Database SKUs. **DTU-based databases and DTU elastic pools are not eligible for reservations** — they will not appear as reservable in Archera.

## Why you might not see reservation options

If you have DTU-based databases or DTU elastic pools, Archera will not surface a reservation option for them. This isn't a gap in Archera's coverage — Microsoft does not offer reservation pricing for the DTU purchasing model at all. Per Microsoft's own documentation:

> "You cannot reserve DTU-based (basic, standard, or premium) databases in SQL Database. Reservation pricing is only supported for features and products that are in General Availability state."

## Serverless vCore

Serverless vCore databases can't be covered by a reservation either, since reservations require committing to a fixed vCore quantity. Serverless usage is instead covered by **Azure database savings plans**, which offer a flexible, consumption-based discount rather than a fixed capacity commitment.

## Converting DTU to vCore

DTU databases and elastic pools can be converted to the vCore model to become reservation-eligible. Conversion has nuances (e.g. mapping the right performance tier and hardware generation, and timing the switch relative to any existing commitments), so **contact your Archera account team before converting** to make sure the change lines up with your commitment strategy.

## Related Resources

* [What Reservable Azure Services Does Archera Insure?](/help-center/azure-faq/reservable-services.md)
* [What Is the Billing Subscription for Azure Reservations and Savings Plans?](/help-center/azure-faq/billing-subscription-and-scope.md)

## Sources

* [Save on compute costs with Azure Reservations - Azure SQL Database & SQL Managed Instance (Microsoft Learn)](https://learn.microsoft.com/en-us/azure/azure-sql/database/reservations-discount-overview?view=azuresql)


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## 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, and the optional `goal` query parameter:

```
GET https://docs.archera.ai/help-center/azure-faq/sql-database-vcore-vs-dtu-reservations.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

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.