Infrastructure
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The nature of the Tiers can be based on either physical or virtual Servers. They can also work in single-mode or as part of a Cluster or attached to a Load-Balancer for redundancy and performance:
- Single Server.
- Cluster of Servers.
- Servers attached to a Load-Balancer.
It is possible to configure the infrastructure to optimize performance, redundancy and cost according to requirements and budget: from the most simple Option (E) where all tiers are hosted on the same infrastructure component, to the most complex Option (A) where each tier has a dedicated infrastructure component.
The Option (B) is probably the best solution performance-wise when a load-balancer is not used and where the Server and Cache tiers are sharing the same infrastructure to reduce the internal network traffic and speed up the the response time of the API calls.
PxStat may be deployed in a Cloud infrastructure. This may be based on anty of the configurations shown above.
