Best High Availability Cluster Solutions

Compare the Top High Availability Cluster Solutions as of December 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
    Robot HA

    Robot HA

    Fortra

    When an emergency or disaster strikes, role swap to your on-premise or cloud backup server so your business can continue within minutes. Use your secondary system to perform nightly backups, queries, and planned maintenance activities without impacting your production system. Replicate all of production or only select libraries and programs. Your data is available on your target server instantly. Using remote journaling and a high-speed apply routine, Robot HA can replicate 188 million journal transactions per hour across any distance—physical or virtual—and apply the data the moment it is received, which means that your hot backup is always a real-time copy of production. Get peace of mind by confirming that you are ready to role swap at any moment. Manually trigger a role swap audit as needed or set it up to run at regular intervals. You can configure the audit to examine the objects that are most important to your data center.
  • 2
    Arctera InfoScale
    Arctera InfoScale is an advanced solution designed to provide real-time resilience and high availability for applications, data services, and infrastructure. It helps businesses reduce downtime by up to 98% with its ability to quickly recover from disruptions, ensuring that critical systems remain operational. By leveraging immutable checkpoints and advanced disaster recovery capabilities, InfoScale ensures business continuity even during cyberattacks or unplanned outages. The platform supports hybrid cloud environments, allowing businesses to seamlessly orchestrate workloads across on-premises, cloud, and containerized systems.
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