--- title: "Valkey - Capabilities and limitations" description: "This page provides the technical capabilities and limitations of the Cloud Databases for Valkey offer." url: https://docs.us.ovhcloud.com/en/public-cloud/databases/valkey-capabilities-limitations lang: en --- > For AI agents: the complete documentation index is available at https://docs.us.ovhcloud.com/en/llms.txt, the full documentation bundle is available at https://docs.us.ovhcloud.com/en/llms-full.txt. # Valkey - Capabilities and limitations **This page provides the technical capabilities and limitations of the Cloud Databases for Valkey offer.** We continuously improve our offers. You can follow and submit ideas to add to our [roadmap](https://github.com/orgs/ovh/projects/16/views/5?filterQuery=main-product%3A%22Managed+Databases%22%2C%22Data+Platform%22%2C%22Data+Processing%22%2C%22Data+Integration%22).   ## Capabilities and limitations ### Supported regions To view Cloud Databases availability, please see our [regions and availability webpage](https://us.ovhcloud.com/public-cloud/regions-availability/). Entire database instances have to be in the same region.   ### Valkey versions The Cloud Databases offer supports the following Redis® open source versions: - Valkey 8.0 - Valkey 8.1 Please refer to the [Lifecycle policy](https://docs.us.ovhcloud.com/en/public-cloud/databases/lifecycle-policy.md) for recommendations on version upgrades and end-of-life announcements of major versions. Additionally, you can follow the Redis® Release Cycle on [their official page](https://redis.io/topics/releases).   ### Valkey clients You can use any of the [clients recommended by Redis®](https://redis.io/clients) to access your instance.   ### Plans The available plans are: - **Essential:** 1 node - **Business:** 2 nodes Your choice of plan affects the number of nodes your cluster can run, the SLA, and a few other features, such as backup retention.   #### License type Valkey is provided under the BSD 3-Clause License. More information is available on the [official Valkey site](https://valkey.io/topics/license/).   ### Hardware resources For information about node types and pricing, please refer to our [pricing page](https://us.ovhcloud.com/public-cloud/prices/).   ### Features #### Network Valkey clusters are reachable through the port defined in the OVHcloud Control Panel. Public as well as private networking (vRack) can be used for all the offers. Ingress and Egress traffic are included in the service plans and are unmetered. The database service's IP address is subject to change periodically. Thus, it is advised not to rely on these IPs for any configuration, such as connection or egress policy. Instead, utilize the provided DNS record and implement CIDR-based egress policies for more robust and flexible network management. ##### Private network considerations Here are some considerations to take into account when using a private network: - Network ports are created in the private network of your choice. Thus, further operations on that network might be restricted - e.g., you won’t be able to delete the network if you didn’t stop the Cloud Databases services first. - When connecting from an outside subnet, the OpenStack IP gateway must be enabled in the subnet used for the Database service. The customer is responsible for any other custom network setup. - Subnet sizing should include considerations for service nodes, other co-located services within the same subnet, and an allocation of additional available IP addresses for maintenance purposes. Failure to adequately size subnets could result in operational challenges and the malfunctioning of services. - OpenStack subnet routes announcement will not be applied to your services. - You can only create private network services if you are the original owner of the network. You cannot create private network services on a shared network. ##### Authorized IPs Once your service is up and running, you will be able to specify IP addresses (or CIDR blocks) to authorize incoming traffic. Until then, your service will be unreachable.   #### Maximum simultaneous connections The number of simultaneous connections in Cloud Databases for Valkey depends on the available total memory on the server. We allow 4 \* megabytes\_of\_bytes\_memory connections per RAM GB, but at least 10000 connections, even on the smallest servers. So, for example, on a server with 7GB of memory, you will get up to 7 \* 4096 = 28672 simultaneous connections.   #### Advanced parameters You can further customize your service by using advanced parameters. See the [Advanced parameters references documentation](https://docs.us.ovhcloud.com/en/public-cloud/databases/advanced-configuration.md) for more information on the supported parameters.   #### Backups _Essential_ plan clusters are automatically backed up every 12 hours during their maintenance window. Backup retention is 1 day. _Business_ plan clusters are automatically backed up every 12 hours during their maintenance window. Backup retention is 3 days. See the [Automated backups](https://docs.us.ovhcloud.com/en/public-cloud/databases/automated-backups.md) guide for more information.   #### Logs and metrics Logs and metrics are available through the OVHcloud Control Panel and OVHcloud API, and can be forwarded to Logs Data Platform. For setup instructions, see our [How to set up logs forwarding guide](https://docs.us.ovhcloud.com/en/public-cloud/databases/set-up-logs-forwarding.md). - **Logs retention**: 1000 lines of logs - **Metrics retention**: 1 calendar month Please note that if the database instance is deleted, logs and metrics are also automatically deleted.   #### Users and roles The creation of users is allowed via the Control Panel and API. For each user, you can specify: - Username - Keys (such as "cached:\*") - Categories (such as "@set") - Commands (such as "+ping +info +echo +get +set") - Channels (such as "\*") You can follow the [official Redis® documentation](https://redis.io/commands/) about Commands. Here is the list of unsupported commands: - bgrewriteaof - cluster - command - debug - failover - migrate - role - slaveof - script - eval - evalsha - acl - bgsave - config - replicaof - lastsave - save - shutdown - monitor **Note:** Update of user ACLs is allowed only via API. Follow [this guide](https://docs.us.ovhcloud.com/en/public-cloud/databases/valkey-manage-acls-via-api.md) to learn more.   #### Data encryption For detailed information about encryption, see our [Security Overview](https://docs.us.ovhcloud.com/en/public-cloud/databases/security-overview.md#data-encryption) guide.   ## Go further Browse all the [Databases guides](https://docs.us.ovhcloud.com/en/public-cloud/databases/landing-page-databases.md). Browse the rest of the [OVHcloud US documentation](https://docs.us.ovhcloud.com/en/index.md) for guides on our other products and services. Learn more about [Managed Databases](https://us.ovhcloud.com/public-cloud/databases/) on the OVHcloud US website.