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Version: 2023.3

Guiding Principles

The HA architecture design follows a number of guiding principles that drive the choice of the deployment type for the HA Add-On:

AspectDescription
CostConsolidate applications components, use virtual environment for all components and leverage from existing infrastructure (compute/storage/network).
PerformanceHave separate tiers for web/app/database, use load balance (when possible) and use physical servers.
SimplicityUse a consistent solution across the system for ease of support, for example, Windows clustering.
LayeringNo SPOF means layering redundancy at all levels (physical host, networking, hypervisor, OS, application services). This document focuses on application level redundancy and host failure.
SLATime to switch from active to standby should be minimal once a failure has been detected.