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Displaying posts with tag: Database clustering (reset)

3-Steps to Deploying Mission Critical Web & Telecoms Services
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There are multiple architectures that can be used to achieve highly available database services, each differentiated by the levels of uptime they offer.  These architectures can be grouped into three main categories:
- Data Replication
- Clustered & Virtualized Systems
- Shared-Nothing, Geographically-Replicated Clusters

As illustrated in the figure below, each of these architectures offers progressively higher levels of uptime, which must be balanced against potentially greater levels of cost and complexity each incurs. 

Simply deploying a high availability …

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