# Valkey

## Description

Valkey, derived from the Redis fork, is a fast, open source, BSD-licensed key-value data store supported by the Linux Foundation.

It provides built-in replication, different levels of disk persistence, and offers high availability with Sentinel [Sentinel](https://valkey.io/topics/sentinel).

There is a [wide range of development tools for the most common languages](https://valkey.io/clients).

{% embed url="<http://valkey.io/>" %}

## Platform as a Service

Valkey is deployed on-premises in **cegedim.cloud** data centers.

**cegedim.cloud** guarantees the same level of service as the Compute offering: instance deployment, operational maintenance, flexibility, security, and monitoring are all provided by our experts.

Two topologies are available:

* Standalone instance
* Sentinel cluster of 3 instances

The Sentinel cluster topology is production-ready with 3 instances distributed across all Availability Zones in a target Area.

Each instance runs the Valkey and Sentinel processes. One instance is primary and the other two are replicas.

Sizing can be configured according to your needs.

<table data-full-width="false"><thead><tr><th></th><th>Single instance</th><th>Cluster</th></tr></thead><tbody><tr><td>Instance(s)</td><td>1</td><td>3</td></tr><tr><td>CPU (per instance)</td><td>2 - 16 vCPU</td><td>2 - 16 vCPU</td></tr><tr><td>RAM (per instance)</td><td>4 - 384 Go</td><td>4 - 384 Go</td></tr><tr><td>Supported versions</td><td><ul><li>8.1</li></ul></td><td><ul><li>8.1</li></ul></td></tr><tr><td>TLS/SSL</td><td><span data-gb-custom-inline data-tag="emoji" data-code="2705">✅</span> Option</td><td><span data-gb-custom-inline data-tag="emoji" data-code="2705">✅</span> Option</td></tr><tr><td>Monitoring</td><td><span data-gb-custom-inline data-tag="emoji" data-code="2705">✅</span> Option</td><td><span data-gb-custom-inline data-tag="emoji" data-code="2705">✅</span> Option</td></tr><tr><td>Monitoring 24x7</td><td><span data-gb-custom-inline data-tag="emoji" data-code="2705">✅</span> Option</td><td><span data-gb-custom-inline data-tag="emoji" data-code="2705">✅</span> Option</td></tr><tr><td>Backup</td><td><span data-gb-custom-inline data-tag="emoji" data-code="2705">✅</span> Option</td><td><span data-gb-custom-inline data-tag="emoji" data-code="2705">✅</span> Option</td></tr><tr><td>Disaster recovery plan (DRP)</td><td><span data-gb-custom-inline data-tag="emoji" data-code="2705">✅</span> Option</td><td><span data-gb-custom-inline data-tag="emoji" data-code="2705">✅</span> Option</td></tr><tr><td>Avalaibility</td><td>99,8%</td><td>99,9%</td></tr><tr><td>Multi-AZ deployment</td><td><span data-gb-custom-inline data-tag="emoji" data-code="274c">❌</span></td><td><span data-gb-custom-inline data-tag="emoji" data-code="2705">✅</span></td></tr><tr><td>Self-service</td><td><span data-gb-custom-inline data-tag="emoji" data-code="2705">✅</span></td><td><span data-gb-custom-inline data-tag="emoji" data-code="2705">✅</span></td></tr></tbody></table>

For more information, please visit the page [Valkey - Features](/databases/valkey/valkey-features.md).

## Billing

Cost estimates for Valkey PaaS are available from your Service Delivery Manager.

Billing is based on the number of nodes, plus additional fees for storage, backup, and 24/7 monitoring.


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