HA Cluster - High Availability Storage without Compromise

euroNAS HA Cluster ensures continuous uptime and safeguards business-critical workloads.

Built for flexibility, it delivers instant failure detection, automatic recovery and seamless data access, whether deployed on a single site or across multiple locations.

Core Capabilities of HA Cluster

Automatic Failover Protection
When a storage server experiences failure, HA Cluster immediately transitions operations to the secondary server with zero manual intervention required. This seamless failover capability ensures continuous business operations and eliminates costly downtime.
Enterprise-Grade Performance & Flexibility
Our Storage OS deploys in minutes, delivering enterprise-class performance without vendor hardware lock-in. Organizations benefit from maximum operational flexibility while maintaining cost efficiency – essential for scalable IT infrastructure.
If you’re running a virtualised environment or simply trying to meet the demands of the 24-hour business cycle, you cannot afford downtime. With HA Cluster, you will get the highest level of redundancy, data security, reliability and availability possible, eveen in the event of a complete server failure.

High Availability Options tailored to your Requirements

Site-to-Site Availability

euroNAS Metro Cluster functionality enables businesses to synchronise storage infrastructure across geographically separated locations. This solution delivers seamless business continuity, even in the event of a complete site failure. Data mirroring operates across buildings within a campus or across the city, ensuring real-time synchronization. 
Key benefits
  • Secure Site Mirroring: Real-time data replication across locations with immediate failover capabilities. Synchronous replication ensures zero data loss and uninterrupted business operations.
  • Automatic Failover and Failback: Site failures trigger immediate automated failover without administrator intervention. Automatic failback re-establishes full redundancy upon site restoration. 
  • Optimized Read and Write Performance: Local read operations maximize speed while write operations utilize synchronous replication. Performance scales with network speed and latency  between sites.
This architecture is ideal for organizations operating geographically distributed infrastructures requiring high availability and resilience across extended distances. 

Dual Controller Configuration - Maximum Performance with Shared Storage

euroNAS Dual Controller configuration delivers maximum performance and availability within single data center environments. Both nodes access identical shared storage, ensuring optimal efficiency and speed while maintaining enterprise-grade availability. 
 
Key benefits
  • Shared Storage Architecture: Both nodes access identical storage for extremely fast data processing. Network-based data replication is eliminated, maximizing performance
  • Seamless Automatic Failover: Node failure trigger immediate service takeover without interruption. Shared storage architecture ensures seamless transitions without data copying or re-synchronization.
  • Optimized for High-Performance Environments: Perfect for single data center deployments prioritizing both performance and availability.
 This architecture is ideal for virtualisation, databases and critical applications requiring maximum performance within centralized environments

Comprehensive Protocol Support for Maximum Flexibility

Protocols

  • iSCSI: Block-level access optimised for virtualisation and database workloads
  • SMB: Cross-platform file sharing for Windows, Linux and macOS
  • NVMe-oF over TCP: High-speed, low-latency storage access over standard Ethernet infrastructure without the need for specialised hardware
  • NVMe-oF over RDMA (RoCE/InfiniBand): Ultra-low latency and high throughput using Remote Direct Memory Access; ideal for high-performance and latency-sensitive workloads
  • NFS: Reliable and efficient file sharing for Linux and Unix-based systems; supports NFS v3 and v4
  • Fused NVMe command support: Enhances VMware compatibility by supporting atomic operations and improving NVMe efficiency
  • VAAI support: Hardware acceleration for VMware environments, reducing CPU and network load during VM cloning, migration, and snapshot operations

Key Benefits

  • Maximum Availability: Continuous 24/7 service, even during system failures
  • Unmatched Performance: Optimised for distributed multi-site or high-performance local deployments
  • Flexible Architecture: Multi-protocol design integrates seamlessly into any IT infrastructure
  • Proven Technology: Nearly 20 years of reliable, enterprise-grade storage innovation

Rapid Deployment and Management

HA Cluster installs and configures in under 30 minutes, featuring intuitive web-based management with automated email notifications and monitoring capabilities.
Advanced mirroring technology and continuous data replication enable planned maintenance on cluster nodes without impacting network applications or client data access.

Find out more about HA Cluster's benefits!

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See euroNAS in Action

Get a live demo of our solutions, see key features and benefits in action, and understand how euroNAS can support your organisation. Our team will guide you through the core functionalities and answer your questions in real time.
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