vServerFT
vServerFT Enterprise-Grade Fault Tolerance
vServerFT is a fault-tolerant virtualization platform that clusters two independent physical servers into a single protected environment for mission-critical applications.
By synchronizing VM states across both servers and supporting automatic failover, vServerFT is designed to maintain application continuity during supported hardware failures.
The imperative of fault tolerant
For mission-critical applications, even a short interruption can affect operations, transactions, monitoring, or service delivery. Fault-tolerant infrastructure is designed for environments where continuity requirements go beyond standard recovery-based approaches.
How vServerFT Supports Continuous Operation
In today’s digital-first world, 24/7 service continuity is non-negotiable. Virtual server fault tolerant is the lifeblood of business resilience.​
Layered redundancy
Protects compute, storage, and network layers to ensure uninterrupted operations during failures.​
Hypervisor cluster architecture
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Spans two physical hosts with specialized engines.
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Engines run distinct processes while sharing real time VM states via a private cluster bus.​
Failure detection
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Continuous "heartbeat" checks via a dedicated VLAN for instant fault detection.
vServerFT Overview - Architecture
vServerFT is built on a two-server fault-tolerant architecture that presents the protected environment as a unified operating platform. Real-time synchronization across the paired servers helps maintain application continuity and protect critical workload state during supported infrastructure failures.
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Fault tolerance is achieved through two redundant physical servers that share synchronized VM state across the platform. If a supported component or server failure occurs, the paired architecture is designed to preserve workload continuity with minimal operational impact.
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This implementation follows our Fault Tolerant Architecture designed for mission-critical environments.
Key features
Downtime Protection
Automatic failover with recovery time <5 seconds.
FT Mode
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Provides full redundancy for protected workloads, with real-time synchronization across the paired servers and a design target of up to 99.999% availability.
PCI Passthrough
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Supports GPUs and NICs for specialized workloads.
Real-Time Synchronization
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Continuously synchronizes VM disk and memory states between the two physical servers to keep the protected environment aligned during operation.
Broad OS Support
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Windows, Linux (Red Hat, CentOS, Ubuntu, SUSE).
Application Monitoring
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Monitors operating system and application health and can initiate recovery actions when supported OS or application hangs are detected.
Advanced features
Data & Security Protection
• Snapshot Management: Scheduled snapshots, snapshot trees, and one-click recovery.
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• Ransomware Protection: Detects and prevents malicious data modification within VMs.
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• Host Security: Whitelist-based access control and kernel-level data lock.
Monitoring & Alerts
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• Real-Time Alerts: Pop-up notifications for hardware/software failures.
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• Multi-Channel Notifications: Email, SMS, SNMP, Syslog, and OPC UA/Modbus integration.
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• Performance Dashboard: Tracks CPU, memory, disk I/O, and network metrics.
Infrastructure Flexibility
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• NIC Teaming & VLAN: Redundant network links and VLAN support.
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• Legacy Migration: Seamlessly migrates physical/virtual systems without reinstallation.
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• IPMI Management: Remote power control for servers.
Watch how vServerFT works