Itential Validated Designs

Highly Available Architecture

A Highly Available Architecture (HA2) is an Itential architecture where all of the components are redundant and can gracefully tolerate at least 1 catastrophic failure. This architecture is the recommended architecture for production environments and testing environments.

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Active/Standby Architecture

An Active/Standby Architecture (ASA) is an Itential architecture where all of the components are redundant and can gracefully tolerate at least 1 catastrophic failure and also provides a redundancy for the primary data center. This architecture is the recommended architecture for production environments that must adhere to strict business continuity and uptime demands. It builds on top of the HA2 architecture essentially using two HA2 installs in geographically redundant locations. It makes use of a larger MongoDB replica set that is also geographically redundant.

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Developer Architecture

A Developer Architecture (DA) is an Itential architecture where all of the components are installed as singletons and can not gracefully tolerate failures. This architecture is not recommended for production environments and testing environments that require strict uptimes and redundancies. This architecture is suitable for development environments only. The IAP application performs many reads and writes against the database and is sensitive to great latencies. All components must be installed in the same data center.

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