Best High Availability Cluster Solutions

Compare the Top High Availability Cluster Solutions as of October 2025

What are High Availability Cluster Solutions?

High availability cluster solutions are systems designed to ensure continuous operation of applications and services by minimizing downtime through redundancy and failover mechanisms. These solutions link multiple servers or nodes to work together, so if one node fails, others automatically take over without service interruption. They provide monitoring, load balancing, and automatic recovery features to maintain system reliability and performance. High availability clusters are critical for mission-critical applications requiring near-zero downtime, such as databases, web services, and financial systems. By reducing single points of failure, they help organizations meet stringent uptime and disaster recovery requirements. Compare and read user reviews of the best High Availability Cluster solutions currently available using the table below. This list is updated regularly.

  • 1
    ClusterControl

    ClusterControl

    Severalnines

    ClusterControl is a hybrid, multi-cloud database ops orchestration platform for MongoDB, Elasticsearch, Redis, TimescaleDB, SQL Server on Linux, Galera Cluster, PostgreSQL, and MySQL in on-premises, cloud, and hybrid environments. It handles full-lifecycle operations, from deployment to failover, backup and more. With its full suite of databases, ops features and ability to be deployed in any environment, it enables organizations to implement the Sovereign DBaaS concept. ClusterControl is perfect for organizations that need to reliably run large-scale, open-source database operations but don't want to be limited by traditional DBaaS providers in environment choice, open-source license stability, and DB access.
    Starting Price: €250/node/month
  • 2
    NGINX
    NGINX Open Source: The open source web server that powers more than 400 million websites. NGINX Plus is a software load balancer, web server, and content cache built on top of open source NGINX. Use NGINX Plus instead of your hardware load balancer and get the freedom to innovate without being constrained by infrastructure. Save more than 80% compared to hardware ADCs, without sacrificing performance or functionality. Deploy anywhere: public cloud, private cloud, bare metal, virtual machines, and containers. Save time by performing common tasks through the built‑in NGINX Plus API. From NetOps to DevOps, modern app teams need a self‑service, API‑driven platform that integrates easily into CI/CD workflows to accelerate app deployment – whether your app has a hybrid or microservices architecture – and makes app lifecycle management easier.
  • 3
    LunaNode

    LunaNode

    LunaNode

    Deploy a reliable, performant, and feature-packed cloud server, available in Canada (Toronto and Montreal) and France (Roubaix). KVM cloud servers on redundant SSD disk arrays. Check out our pricing! Take live snapshots of your VM at any time to extract its current disk state for backups or cloning, without any downtime. Volumes are detachable disks stored on our high-availability cluster. Attach volumes to VMs for extra space, or provision VMs with a volume as the boot device. Automatically configure your VM during the boot process with bash and cloud-init startup scripts. Security groups allow you to define traffic restrictions on groups of virtual machines at the infrastructure level. Your VMs get their own private, isolated internal network, on which they can securely communicate. VMs can burst above their baseline performance for short periods to utilize additional CPU and I/O resources, making load spikes easier on your application.
    Starting Price: $3.50 per month
  • 4
    F5 NGINX Plus
    The software load balancer, reverse proxy, web server, & content cache with the enterprise features and support you expect. Modern app infrastructure and dev teams love NGINX Plus. More than just the fastest web server around, NGINX Plus brings you everything you love about NGINX Open Source, adding enterprise‑grade features like high availability, active health checks, DNS system discovery, session persistence, and a RESTful API. NGINX Plus is a cloud‑native, easy-to-use reverse proxy, load balancer, and API gateway. Whether you need to integrate advanced monitoring, strengthen security controls, or orchestrate Kubernetes containers, NGINX Plus delivers the five‑star support you expect from NGINX. NGINX Plus provides scalable and reliable high availability along with monitoring to support debugging and diagnosing complex application architectures. Active health checks proactively poll upstream server status to get ahead of issues.
  • 5
    OpenMetal

    OpenMetal

    OpenMetal

    Our technology allows you to spin up a full hosted private cloud in 45 seconds. Think of it as the first “private cloud as a service”. All hosted private clouds start with a Cloud Core. OpenMetal’s Cloud Core is a hyper-converged set of 3 hosted servers of your chosen hardware type, spun up as a service. Your cloud is powered by OpenStack and Ceph. This brings you everything from Compute/VMs and Block Storage to powerful software defined networking to trivial-to-deploy Kubernetes. Plus, tooling for Day 2 Operations with built in monitoring, all bundled up in a modern portal. OpenMetal hosted private clouds are API-first systems to enable teams to use infrastructure as code. We recommend Terraform. CLI and GUI are also available by default.
    Starting Price: $356/month
  • 6
    IBM Z System Automation
    IBM Z System Automation is a NetView-based application that provides a single control point for a full range of system management functions. It plays a crucial role in supplying high-end automation solutions. IBM Z System Automation monitors, controls, and automates an extensive range of system elements spanning your enterprise's hardware and software resources. IBM Z System Automation is a policy-based, self-healing, high-availability solution designed to optimize the efficiency and availability of critical systems and applications. It reduces administrative and operational tasks, customization and programming effort, and automation implementation time and costs associated with Parallel Sysplex and policy-based automation. Using tight integration with Geographically Dispersed Parallel Sysplex (GDPS), IBM Z System Automation provides sophisticated disaster recovery capabilities for IBM Z systems.
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