Ensuring uninterrupted business operations requires redundant infrastructure, fault-tolerant networking, and automated failover systems. Our HA solutions provide instant failover (Hot Standby) and cost-effective backup recovery (Cold Fallback) to mitigate failures, cyberattacks, or disasters.

Hot Standby – Instant Failover for Critical Workloads

A Hot Standby system is a continuously running, mirrored environment that takes over immediately in case of a failure. It ensures that critical workloads remain operational without noticeable downtime.

How Hot Standby Works

✔ Fully Redundant High Availability Cluster
We use a HA Cluster with Ceph storage, providing a self-healing infrastructure. If a node fails, workloads instantly migrate to healthy nodes.

✔ Ceph Distributed Storage for Data Integrity
Data is stored in a Ceph cluster, ensuring redundancy across multiple storage nodes. A node failure does not lead to data loss, as another node holds an up-to-date replica.

✔ Automated Node Failover
If a node goes offline, services are automatically restarted on another node, ensuring no downtime for virtual machines, applications, or storage services.

✔ Fault-Tolerant Networking with Twingate
Multiple Twingate workers are deployed to ensure continuous VPN access. If one worker fails, another one seamlessly takes over, maintaining a secure and uninterrupted connection.

✔ Continuous Health Monitoring & Alerts
The HA system is monitored in real-time, automatically detecting failures and triggering alerts for quick intervention if needed.

Cold Fallback – Cost-Effective Disaster Recovery

A Cold Fallback system is a standby environment that remains inactive until needed. It is ideal for disaster recovery scenarios, ensuring business continuity while keeping costs low.

How Cold Fallback Works

✔ Pre-Provisioned Backup Systems
Dedicated standby servers are pre-configured but remain powered down or in a low-power state to reduce costs.

✔ Automated Failover Activation
In case of a primary system failure, the Cold Fallback system is automatically booted, data is synchronized, and services are restarted.

✔ Network Redirection with Twingate
Once activated, Twingate dynamically redirects network traffic to the Cold Fallback instance, ensuring smooth access without user intervention.

✔ Regular Restore Tests for Reliability
We periodically test the Cold Fallback activation process, ensuring that recovery is fast, reliable, and free from errors when needed.

✔ Secure Offsite Backup Storage
Standby servers can be deployed in a separate geographical location, protecting against fire, theft, or catastrophic failures of nodes or storage.

High Availability Network Architecture

✔ Redundandent access nodes
Twingate is deployed with multiple worker nodes, ensuring redundant, fault-tolerant connections even if a worker fails.

✔ Load-Balanced Traffic Distribution
Network traffic is automatically distributed between available workers, preventing single points of failure.

✔ End-to-End Encryption for Secure Connectivity
All remote access is encrypted using TLS 1.3 with perfect forward secrecy, ensuring that sensitive data is protected.

✔ Multiple Internet Gateways for Uplink Redundancy
Connections are routed through multiple ISPs, preventing downtime due to network failures.

Automated Testing & Maintenance

✔ Scheduled Failover Drills
We simulate failure scenarios to test failover speed, verify system integrity, and refine response times.

✔ Security Hardening & Updates
All standby and failover systems are kept up to date with security patches, firmware updates, and system optimizations.

High Availability

For Continuous Operations

By implementing a fully redundant HA cluster with Ceph storage, multi-worker Twingate for secure connections, and automated failover mechanisms, our solution ensures that businesses remain operational even during hardware failures, cyberattacks, or disasters.

For businesses seeking additional security, our Cold Fallback solution offers a cost-effective disaster recovery plan with pre-configured standby servers and automated activation.

For more information or to discuss a customized setup, contact our team today.