> For the complete documentation index, see [llms.txt](https://docs.ionos.com/cloud/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ionos.com/cloud/databases/in-memory-db.md).

# In-Memory DB

With <code class="expression">space.vars.ionos\_cloud</code> DBaaS, you can quickly set up and manage In-Memory DB, an open-source, in-memory data structure store that stores key-values, and is compatible with the Redis® OSS API. This capability makes it a versatile choice for various applications such as databases, caches, message brokers, or streaming engines.

In-Memory DB delivers a fully managed service that combines an in-memory data store with a dynamic, real-time database. This combination leverages memory's rapid access speeds, ensuring high performance. It is particularly well-suited for frequently accessed data that rarely changes, resulting in significant reductions in load on central databases through efficient in-memory caching.

You can initiate In-Memory DB through the DCD, APIs or automation tools like Ansible and Terraform.

{% hint style="warning" %}
**Important:**

* **In-Memory DB v2**, powered by [<mark style="color:blue;">Valkey</mark>](https://valkey.io/), is now available, bringing Valkey (Redis®-compatible) engines in versions 8, 8.1, and 9. It also adds extended snapshot retention and native <code class="expression">space.vars.ionos\_cloud</code> Observability integration.
* Use **In-Memory DB v2** to create clusters using either the [<mark style="color:blue;">DCD</mark>](/cloud/databases/in-memory-db/how-tos/v2.md) or the [<mark style="color:blue;">API</mark>](https://api.ionos.com/docs/in-memory-db/v2/).
* Creation of clusters using In-Memory DB v1 is deprecated through the [<mark style="color:blue;">DCD</mark>](/cloud/databases/in-memory-db/how-tos/v1.md) and only limited operations are supported on legacy clusters.
* Creation of v1 clusters through the [<mark style="color:blue;">API</mark>](/cloud/databases/in-memory-db/api/v1-api.md) will be deprecated as of **July 31, 2026**.
* An automatic migration from v1 to v2 is impossible. You must manually migrate existing v1 clusters to the new v2 infrastructure through the v2 API. For step-by-step instructions, see [<mark style="color:blue;">Manual migration</mark>](/cloud/databases/in-memory-db/how-tos/migrate-from-v1-v2.md#manual-migration).
  {% endhint %}

## Product overview

<table data-view="cards"><thead><tr><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><mark style="color:blue;"><strong>In-Memory DB</strong></mark></td><td>Overview of In-Memory DB features and capabilities.</td><td><a href="/pages/67SEEXp8YhVpSGyg2pvS">/pages/67SEEXp8YhVpSGyg2pvS</a></td></tr></tbody></table>

## Quick links

<table data-view="cards"><thead><tr><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><mark style="color:blue;"><strong>How-Tos</strong></mark></td><td>Learn how to create and manage In-Memory DB v2 clusters through the DCD.</td><td><a href="/pages/G78vjVs95wwFYvcfLler">/pages/G78vjVs95wwFYvcfLler</a></td></tr><tr><td><mark style="color:blue;"><strong>API</strong></mark></td><td>Learn how to create, manage, and delete In-Memory DB replica sets using the In-Memory DB v2 API.</td><td><a href="/pages/zARHQcnzoDGGR61mbj2v">/pages/zARHQcnzoDGGR61mbj2v</a></td></tr><tr><td><mark style="color:blue;"><strong>Troubleshooting</strong></mark></td><td>Learn how to troubleshoot common issues with In-Memory DB.</td><td><a href="/pages/w7oN4sPtKLdwapGQx5gZ">/pages/w7oN4sPtKLdwapGQx5gZ</a></td></tr></tbody></table>

## Developer Tools

<table data-view="cards"><thead><tr><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><mark style="color:blue;"><strong>DBaaS In-Memory DB v2 Cloud API</strong></mark></td><td>Access the Cloud API documentation for In-Memory DB v2.</td><td><a href="https://api.ionos.com/docs/in-memory-db/v2/">https://api.ionos.com/docs/in-memory-db/v2/</a></td></tr><tr><td><mark style="color:blue;"><strong>DBaaS In-Memory DB v1 REST API</strong></mark></td><td>Access the REST API documentation for In-Memory DB v1.</td><td><a href="https://api.ionos.com/docs/in-memory-db/v1/">https://api.ionos.com/docs/in-memory-db/v1/</a></td></tr><tr><td><mark style="color:blue;"><strong>In-Memory DB SDKs</strong></mark></td><td>Interact with the In-Memory DB API using SDKs.</td><td><a href="https://docs.ionos.com/cloud/sdk-tools-home">https://docs.ionos.com/cloud/sdk-tools-home</a></td></tr><tr><td><mark style="color:blue;"><strong>Config Management Tools</strong></mark></td><td>Explore configuration management tools compatible with In-Memory DB.</td><td><a href="https://docs.ionos.com/cloud/reference/config-management-tools/config-management-tools">https://docs.ionos.com/cloud/reference/config-management-tools/config-management-tools</a></td></tr></tbody></table>

## Frequently Asked Questions (FAQ)

<table data-view="cards"><thead><tr><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><mark style="color:blue;"><strong>FAQ</strong></mark></td><td>Get answers to the most commonly encountered questions about In-Memory DB.</td><td><a href="/pages/ipnjWp0jAfb52Y6Pe7Yf">/pages/ipnjWp0jAfb52Y6Pe7Yf</a></td></tr></tbody></table>


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