System and Infrastructure Requirements

Before deploying Redis, review and complete the Core Hardware & OS Setup, configure your Network Configuration, and apply key Operating System Optimization. Plan your Cluster Sizing & Topology to meet quorum and enable rack-zone awareness for high availability.

Lastly, check for any Environment-Specific Considerations.

When ready, complete the final step of sharing with Redis Support to validate your deployment.

Core Hardware & OS Setup

Your equipment should meet the basic hardware requirements, and should also have extra capabilities depending on the amount of data, volume of traffic, and number of databases.

These are starting points. Scale up as needed: 

Minimum Requirements:

• CPU: 4 cores per node (Minimum: 2 cores per node, Recommended: >=8 cores)
• RAM: 15 GB per node (Minimum: 8 GB, Recommended: >=32 GB)

CPU Sizing Guidelines

• 1 shard per ~25,000 ops/sec
• 1.5 CPUs per shard (per primary and each replica)
• Additional 0.5 CPU per shard for DMC proxy overhead
• Leave ~20% CPU per node for non-database processes

RAM Sizing Guidelines

• 1 shard per ~25 GiB RAM
• Leave ~20% RAM unused by non-database storage

Choose the Supported Operating System (OS): Redis supports various Linux distributions, including RHEL, CentOS, and Ubuntu. Make sure your OS is up-to-date and compatible.​ For more information, please visit Plan Deployment 

Network Configuration

Select Low Latency & High-Throughput Network:

For best performance, use multiple NICs per node with >100 Mbps each.

Alternatively, a single 1 Gbps NIC can support  traffic, cluster communication, and storage access. Choose based on your infrastructure and workload needs.

Open Required Network Ports:

Redis requires specific ports to be open for node-to-node communication.

The installation process will fail if the designated ports, specifically those assigned for databases or port 53 on Ubuntu, are already in use.

Refer to the For more information, please visit Port Configurations. 

Operating System Optimization

Disable Linux Swap: Turn off swap space to prevent performance degradation.

Follow the instructions in Configure Swap for Linux for a step-by-step guide. 

Synchronize Cluster Node Clocks: To maintain accurate time synchronization among nodes in a cluster, it's essential to use NTP or Chrony.

See more information in Synchronize Cluster Node Clocks​

Cluster Sizing & Topology

Decide on Number of Nodes: A Redis cluster requires a minimum of 3 nodes (always an odd number) to maintain quorum and ensure high availability. This allows the cluster to tolerate failures while preserving consistency. Clusters with more than 35 nodes aren't supported.

Enable Rack-Zone Awareness: Distribute nodes across different racks or zones to improve fault tolerance and ensure high availability. For more information, please visit ​Rack-zone Awareness.

Next Step: Share with Redis Support

After configuring your infrastructure, it's recommended to upload a support package for the Redis team to review. This allows them to provide feedback and ensure your deployment aligns with best practices.

Onboarding Progress

Previous: Introduction to Redis Software
Next: Installing Redis Software

Return to the Redis Software Onboarding Overview to view all steps.