How Does Leaseweb Ensure Data Center Redundancy and Failover Capabilities?

Leaseweb ensures data center redundancy and failover capabilities through comprehensive strategies, including N+1 or 2N redundancy in power and cooling systems, fully redundant network topology with over 2000 ISP peering points, and robust security and monitoring protocols. Their global network architecture is enhanced by connections to multiple Tier 1 internet backbones and the use of SDN for network service delivery automation. These technical specifications underline Leaseweb's commitment to maintaining high performance, reliability, and security for their clients' critical operations.
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Leaseweb ensures data center redundancy and failover capabilities through a meticulously designed infrastructure that emphasizes performance, reliability, and security. The technical strategies and specifications underlying their approach are comprehensive, focusing on every aspect of the data center environment from physical hardware to network architecture.

Here’s an in-depth look at how Leaseweb achieves this:

Multi-Level Redundancy

Leaseweb operates 25 state-of-the-art data centers globally, each engineered to meet high specifications for redundancy at various levels:

  • Power Systems: Each data center employs N+1 or 2N redundancy in power supply systems. This means that for every power unit required for operation, there is at least one additional unit (N+1) or an exact duplicate of the entire system (2N) available as a backup. In the event of a power failure, uninterruptible power supplies (UPS) and emergency backup generators are ready to provide continuous power, ensuring that servers remain operational and data remains accessible.
  • Cooling Systems: Cooling systems also follow N+1 redundancy, ensuring that if one cooling unit fails, there is another unit immediately available to take over, maintaining optimal operating temperatures for data center hardware.
  • Network Infrastructure: The redundancy extends to the network infrastructure, where Leaseweb uses a fully redundant network topology. This means there are multiple paths for data to travel within the network, eliminating single points of failure. If one path becomes unavailable, data is automatically rerouted through another path to maintain connectivity and performance.

Connectivity and Peering

Leaseweb’s global network architecture is designed for maximum availability and low latency, supported by connections to over 2000 ISPs and 6 top-tier-1 carriers. This vast peering capacity ensures that data can be routed through the most efficient paths, minimizing the risk of congestion and reducing latency. Each border router (BR) within the Leaseweb network is connected to multiple Tier 1 internet backbones, enhancing network resilience and redundancy. If one backbone faces issues, the BRs can quickly switch to another, maintaining network performance and availability.

Data Center Security and Monitoring

Security and monitoring are crucial components of Leaseweb’s redundancy and failover capabilities. Physical security measures, including access control and surveillance, protect against unauthorized access and potential physical threats to the infrastructure. On the cyber security front, Leaseweb deploys DDoS protection across all data centers to safeguard against online attacks that could disrupt service availability.

Software and Automation

Leaseweb utilizes Software Defined Networking (SDN) to automate the delivery of network services, enhancing the flexibility of its network. This allows for rapid scaling and adaptation of network resources in response to changing demands, contributing to overall redundancy and failover capabilities. Automated audits help ensure configurations are standardized and deviations are quickly identified and corrected, maintaining operational integrity.

Internal and Private Networks

Leaseweb’s approach includes a separate internal network for data exchange between servers within the data center. This not only enhances security by limiting exposure to external threats but also ensures low latency and high-speed data transfer between services, crucial for effective failover operations.


Leaseweb’s data center redundancy and failover capabilities are rooted in a robust infrastructure that prioritizes redundancy at every layer, from physical components like power and cooling systems to network connectivity and cyber security measures. By employing a dual-vendor policy for critical components and leveraging advanced technologies such as SDN, Leaseweb ensures its data centers are not only resilient and secure but also capable of delivering high performance and reliability to support critical business operations.


Experience unparalleled uptime and performance with Leaseweb’s state-of-the-art data centers, where advanced redundancy meets cutting-edge technology.

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Leaseweb’s Data Center Redundancy and Failover Capabilities

Leaseweb’s approach to ensuring data center redundancy and failover capabilities incorporates advanced technological frameworks and methodologies to deliver high availability, performance, and security. Through an intricate design that includes N+1 or 2N redundancy across power and cooling systems, a fully redundant network topology, extensive ISP peering, and the deployment of SDN, Leaseweb guarantees robust infrastructure resilience. Let’s have a closer look at the benefits and potential limitations of such a comprehensive setup, aiming to provide a detailed understanding of how Leaseweb’s technical strategies meet the critical demands of modern digital operations.

Aspect Benefits Drawbacks
Availability & Reliability N+1/2N redundancy ensures continuous operation, reducing downtime risk. Complex management of redundant systems may require extensive resources.
Performance Low latency and high throughput via extensive ISP peering and redundant network topology. Enhanced infrastructure leads to higher operational and capital expenses.
Security & Resilience Advanced DDoS protection and physical security measures; adaptive security posture through SDN. Potential over-reliance on provider’s infrastructure for security, neglecting own disaster recovery planning.


  1. High Availability and Reliability: The implementation of N+1 or 2N redundancy schemes ensures that there is always a backup component ready to take over in the event of a failure, significantly reducing the risk of downtime. This high availability is crucial for businesses that rely on constant online presence and for applications where even minimal downtime can result in significant financial losses or reduced customer trust.
  2. Optimized Performance: By peering with over 2000 ISPs and ensuring connectivity to multiple Tier 1 internet backbones, Leaseweb provides low-latency and high-throughput network services. This extensive peering capacity, combined with a fully redundant network topology, ensures data can be routed through the most efficient paths, enhancing user experiences through faster load times and smoother interactions.
  3. Enhanced Security and Resilience: Leaseweb’s deployment of DDoS protection and stringent physical security measures safeguard against a wide array of cyber threats and physical intrusions. The use of SDN technology further enables dynamic response to network conditions and threats, providing an adaptive security posture that can preemptively mitigate potential vulnerabilities.


  1. Complexity in Management: The sophisticated redundancy and failover mechanisms, while beneficial, introduce complexity in the management of data center operations. Ensuring seamless coordination between redundant systems and components requires specialized knowledge and constant vigilance, which could be resource-intensive.
  2. Increased Cost: The deployment of redundant components and advanced network infrastructures inherently leads to higher operational and capital expenditures. For businesses, this could translate into increased costs for hosting services, although these costs are often justified by the enhanced reliability and performance offered.
  3. Potential for Over-Reliance: There’s a risk that businesses might become overly reliant on the redundancy and failover capabilities, possibly neglecting the importance of implementing their own disaster recovery and business continuity planning. While Leaseweb’s infrastructure provides a strong foundation, it is essential for clients to maintain their own robust strategies to address specific operational risks.

In conclusion, Leaseweb’s data center redundancy and failover strategies exemplify a commitment to delivering unparalleled service quality, employing a blend of redundancy, network optimization, and security enhancements to ensure high availability, performance, and protection. While these approaches come with their complexities and costs, the value they add in terms of reliability and user experience is substantial. Businesses leveraging Leaseweb’s infrastructure can expect a resilient hosting solution that supports continuous operations and growth, albeit with the understanding that comprehensive benefits come with inherent challenges and responsibilities.

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