High Availability Cloud Hosting — Redundant, Resilient Infrastructure

High availability is not just a marketing claim — it is an architectural approach that eliminates single points of failure at every layer of the infrastructure stack. In a high availability cloud environment, no single hardware failure — whether a drive, a server, a switch, or a power feed — can take your service offline. Every critical component has a redundant counterpart that takes over automatically and instantly.

AnubizHost high availability infrastructure achieves this through distributed compute nodes, replicated NVMe storage, redundant network paths, and automated health monitoring. If a physical server fails, your cloud instance is migrated to a healthy node within seconds. If a storage drive fails, your data continues to be served from its replica. If a network path goes down, traffic is rerouted through an alternative path.

Our 99.99% uptime SLA means no more than 52 minutes of unplanned downtime per year. In practice, our actual uptime consistently exceeds this target. We achieve this by investing in redundancy at every layer and by running proactive monitoring that detects and addresses potential failures before they impact customer services.

The foundation of our high availability infrastructure is a distributed storage system built on replicated NVMe arrays. Your server's disk data is written to multiple physical drives simultaneously, ensuring that the failure of any single drive has zero impact on data availability. Storage is decoupled from compute, meaning your data persists independently of any specific physical server.

Compute nodes are organized in clusters with shared access to the storage layer. If the node running your cloud instance experiences a hardware failure, the cluster manager automatically restarts your instance on a healthy node. Because the storage is shared and replicated, the restart process takes seconds — your instance boots from the same disk image on different physical hardware with no data loss.

This architecture handles the most common causes of unplanned downtime: drive failures, motherboard failures, memory errors, and power supply failures. By making every physical component replaceable without service interruption, we deliver genuine high availability that you can rely on for production workloads.

Network availability is as important as compute and storage availability. AnubizHost high availability infrastructure uses fully redundant networking at every layer. Each server has multiple network interfaces connected to different switches. Each switch is connected to multiple core routers. Each router connects to multiple upstream transit providers.

This means that the failure of any single network component — a cable, a switch port, a router, or even an entire upstream provider — does not interrupt connectivity to your server. Traffic is automatically rerouted through alternative paths with minimal latency impact. Our network team monitors all paths 24/7 and responds immediately to any degradation.

For additional protection against network-level threats, our high availability plans include baseline DDoS mitigation that filters volumetric attacks before they reach your server. Traffic scrubbing is performed upstream, meaning attack traffic never saturates the links to your server. For customers who need more aggressive DDoS protection, enhanced mitigation tiers are available as an add-on.

High availability cloud hosting is available in all AnubizHost locations. Sign up with an email address, select a high availability plan, choose your jurisdiction, and pay with cryptocurrency. Your HA instance is provisioned on our redundant infrastructure and monitored immediately.

For the highest levels of availability, consider deploying instances in multiple locations and using DNS-based failover or load balancing to distribute traffic across them. This protects against not just hardware failures but also data center-level events. Our support team can help design multi-location HA architectures tailored to your specific requirements.

All high availability plans include our 99.99% uptime SLA, automated failover, replicated storage, redundant networking, and 24/7 monitoring with incident response. Combined with AnubizHost's privacy protections — no KYC, no logs, crypto payments — you get hosting that stays online and stays private. Deploy today and run your critical workloads with confidence.