Your Multi-Data-Centre Strategy
Across three locations in Düsseldorf
With a multi-redundant connection across three geographically separate data centres, we can provide a resilient, high-availability infrastructure in Düsseldorf. Many applications are designed from the outset to be distributed across at least three independent and geographically separate data centre locations. These include high-availability database solutions such as MariaDB and MySQL (Galera Cluster), as well as file system clusters including Ceph and GlusterFS, and other services such as Redis and RabbitMQ.
To help you implement your high-availability requirements effectively, we enable you to deploy an active/active/active architecture, allowing each of the three Düsseldorf data centres to serve applications at any time.
Redundancy within Düsseldorf & beyond
With our three data centre locations, we can provide local redundancy within Düsseldorf. A local multi-data-centre strategy is often the ideal solution when short network paths and low latency are a priority, for example for database applications, while the availability provided by a single data centre is not sufficient.
However, if your applications require greater geographical separation between data centres, we can connect a Düsseldorf data centre as a central hub with two additional locations elsewhere in Germany or Europe. These can operate as active or passive data centres, for example as disaster recovery sites.
What are the benefits of a multi-data-centre strategy?
Resilience
High availability
Scalable and secure
Why three data centres? Aren’t two locations enough?
Two data centres certainly provide a degree of redundancy. However, truly redundant operation generally requires 50% of the resources to be held in reserve, as the remaining site must be able to handle the full workload in the event of an outage. This means that half of the capacity has to be permanently provisioned at both data centres, even though it may only be required in an emergency.
The situation can become even more challenging when longer response times are taken into account. In addition, software running in a cluster environment can typically lose quorum in an emergency, potentially resulting in a split-brain scenario.
Better cluster scalability
Operating across three locations eliminates these challenges. If one data centre becomes unavailable, two locations remain operational and continue to form part of the cluster. At the same time, only one third of the total capacity needs to be held in reserve.
Especially for larger or more complex infrastructures, this approach can provide significantly greater resilience, efficiency and cost-effectiveness compared with operating across two data centres. The result is an infrastructure that is highly resilient while offering greater flexibility for future scaling.
Multi-data-centre strategies are particularly well suited for:
Fallback Strategies
Load Balancing
Content Delivery
Backup Strategies
Our customers – successful together together
Bring your multi-data-centre strategy to life with us
datacenter@recast-it.com
+49 202 261 590 20
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