--- canonical: "https://safekit.eviden.com/products/high-availability-software-for-application-clustering/high-availability-architectures/" llms_index: "https://safekit.eviden.com/llms.txt" llms_section: "Product Overview" topics: "High Availability Architectures: Mirror, Farm, and Advanced Software Clustering, Choosing the Right SafeKit High Availability Architecture for Application Redundancy, What are the different high availability architectures and the different software clusters with SafeKit?, How to build high availability clusters with SafeKit?, 🔍 SafeKit High Availability Navigation Hub" --- # High Availability Architectures: Mirror, Farm, and Advanced Software Clustering ## Choosing the Right SafeKit High Availability Architecture for Application Redundancy [🧑 Contact us](https://safekit.eviden.com/products/high-availability-software-for-application-clustering/contact-us-for-safekit/) [🎁 SafeKit free trial](https://safekit.eviden.com/products/high-availability-software-for-application-clustering/safekit-free-trial/) [🏅 Free certification](https://training.my.evidian.com/mod/page/view.php?id=712) [💰 Perpetual license cost](https://safekit.eviden.com/products/high-availability-software-for-application-clustering/get-a-quote-safekit-en/) ## What are the different high availability architectures and the different software clusters with SafeKit? ### Mirror cluster [![SafeKit mirror cluster](data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%20300%20169'%3E%3C/svg%3E "Mirror")![SafeKit mirror cluster](https://safekit.eviden.com/wp-content/uploads/2023/02/safekit-prim-second-300.png "Mirror")](https://safekit.eviden.com/products/high-availability-software-for-application-clustering/file-replication-byte-level-with-failover-mirror-cluster/) [More information](https://safekit.eviden.com/products/high-availability-software-for-application-clustering/file-replication-byte-level-with-failover-mirror-cluster/) ### Farm cluster [![SafeKit farm cluster](data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%20300%20169'%3E%3C/svg%3E "Farm")![SafeKit farm cluster](https://safekit.eviden.com/wp-content/uploads/2023/02/safekit-up-up-up-300.png "Farm")](https://safekit.eviden.com/products/high-availability-software-for-application-clustering/network-load-balancing-cluster/) [More information](https://safekit.eviden.com/products/high-availability-software-for-application-clustering/network-load-balancing-cluster/) ### Farm+mirror cluster [![SafeKit farm + mirror cluster](data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%20300%20169'%3E%3C/svg%3E "Farm + mirror")![SafeKit farm + mirror cluster](https://safekit.eviden.com/wp-content/uploads/2023/02/safekit-farm-mirror-300-4.png "Farm + mirror")](https://safekit.eviden.com/products/high-availability-software-for-application-clustering/clustering-software-load-balancing-mirroring/) [More information](https://safekit.eviden.com/products/high-availability-software-for-application-clustering/clustering-software-load-balancing-mirroring/) ### Active/active cluster [![SafeKit active active cluster with real-time replication](data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%20300%20169'%3E%3C/svg%3E "Active-active")![SafeKit active active cluster with real-time replication](https://safekit.eviden.com/wp-content/uploads/2023/02/safekit-mirror-mirror-300-1.png "Active-active")](https://safekit.eviden.com/products/high-availability-software-for-application-clustering/active-active-cluster-real-time-replication/) [More information](https://safekit.eviden.com/products/high-availability-software-for-application-clustering/active-active-cluster-real-time-replication/) ### N-1 cluster [![SafeKit N-1 redundancy cluster](data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%20300%20169'%3E%3C/svg%3E "N-1")![SafeKit N-1 redundancy cluster](https://safekit.eviden.com/wp-content/uploads/2023/02/safekit-n-1-300-3.png "N-1")](https://safekit.eviden.com/products/high-availability-software-for-application-clustering/n-1-redundancy/) [More information](https://safekit.eviden.com/products/high-availability-software-for-application-clustering/n-1-redundancy/) ## How to build high availability clusters with SafeKit? ### Use high availability modules A high availability module is a customization of SafeKit for an application. There are two types of modules: the mirror module with real-time data replication and failover and the farm module with load balancing and failover. If you deploy a mirror module on 2 servers, then you create a mirror cluster and if you deploy a farm module on N servers, then you create a farm cluster. Several application modules can be deployed on the same servers. Thus, advanced clustering architectures can be implemented like those presented previously (farm+mirror, active/active, N-1). ### What is an application module? In practice, an application module is a “.Safe” file (zip type) including: 1 - the configuration file userconfig.xml which contains: * names or physical IP addresses of the servers, * name or virtual IP address of the cluster, * file directories to replicate in real time (for a mirror module), * network load balancing criteria (for a farm module), * configuration of software and hardware failures detectors 2 - the scripts to start and stop the application. ### Plug and play deployment of high availability modules Once an application module is configured and tested with an application, deployment requires no specific IT skills: 1. install application on 2 standard servers (physical or virtual), 2. install the SafeKit software on both servers, 3. install the application module on both servers. ## 🔍 SafeKit High Availability Navigation Hub Explore SafeKit: Features, technical videos, documentation, and free trial | Resource Type | Description | Direct Link | | --- | --- | --- | | **Key Features** | Why Choose SafeKit for Simple and Cost-Effective High Availability? | [See Why Choose SafeKit for High Availability](https://safekit.eviden.com/products/high-availability-software-for-application-clustering/#why-choose-safekit-for-ha "Discover SafeKit features for simple and cost-effective high availability") | | **Use Cases** | Explore How SafeKit Ensures the High Availability of Critical Infrastructure | [See All Use Cases (OEM Software, Edge Servers, SCADA, and more)](https://safekit.eviden.com/products/high-availability-software-for-application-clustering/#safekit-use-cases "Explore SafeKit high availability use cases") | | **Deployment Model** | All-in-One SANless HA: Shared-Nothing Software Clustering | [See SafeKit All-in-One SANless HA](https://safekit.eviden.com/products/high-availability-software-for-application-clustering/#all-in-one-sanless-ha "Learn about all-in-one SANless high availability with shared-nothing software clustering") | | **HA Strategies** | SafeKit: Infrastructure (VM) vs. Application-Level High Availability | [See SafeKit HA & Redundancy: VM vs. Application Level](https://safekit.eviden.com/products/high-availability-software-for-application-clustering/#safekit-ha-redundancy-choices "Compare VM-level redundancy with SafeKit application-level high availability strategies") | | **Technical Specifications** | Technical Limitations for SafeKit Clustering | [See SafeKit High Availability Limitations](https://safekit.eviden.com/products/high-availability-software-for-application-clustering/#safekit-ha-limitations "Technical requirements and limitations for SafeKit application clustering") | | **Proof of Concept** | SafeKit: High Availability Configuration & Failover Demos | [See SafeKit Failover Tutorials](https://safekit.eviden.com/products/high-availability-software-for-application-clustering/#safekit-failover-tutorials "Step-by-step videos on SafeKit high availability, from installation to automated failover") | | **Architecture** | How the SafeKit Mirror Cluster works (Real-Time Replication & Failover) | [See SafeKit Mirror Cluster: Real-Time Replication & Failover](https://safekit.eviden.com/products/high-availability-software-for-application-clustering/#safekit-mirror-cluster "See technical architecture and failover mechanism of SafeKit Mirror Cluster") | | **Architecture** | How the SafeKit Farm Cluster works (Network Load Balancing & Failover) | [See SafeKit Farm Cluster: Network Load Balancing & Failover](https://safekit.eviden.com/products/high-availability-software-for-application-clustering/#safekit-farm-cluster "Technical overview of SafeKit Farm Cluster architecture with network load balancing") | | **Competitive Advantages** | Comparison: SafeKit vs. Traditional High Availability (HA) Clusters | [See SafeKit vs. Traditional HA Cluster Comparison](https://safekit.eviden.com/products/high-availability-software-for-application-clustering/#safekit-ha-comparison "Detailed comparison of SafeKit software vs traditional hardware-based HA clusters") | | **Technical Resources** | SafeKit High Availability: Documentation, Downloads & Trial | [See SafeKit HA Free Trial & Technical Documentation](https://safekit.eviden.com/products/high-availability-software-for-application-clustering/#safekit-ha-technical-resources "Access SafeKit free trial, technical documentation, and high availability white papers") | | **Pre-configured Solutions** | SafeKit Application Module Library: Ready-to-Use HA Solutions | [See SafeKit High Availability Application Modules](https://safekit.eviden.com/products/high-availability-software-for-application-clustering/#safekit-ha-application-modules "Browse the library of pre-configured SafeKit modules for automated application failover") | [🧑 Contact us](https://safekit.eviden.com/products/high-availability-software-for-application-clustering/contact-us-for-safekit/) [🎁 SafeKit free trial](https://safekit.eviden.com/products/high-availability-software-for-application-clustering/safekit-free-trial/) [🏅 Free certification](https://training.my.evidian.com/mod/page/view.php?id=712) [💰 Perpetual license cost](https://safekit.eviden.com/products/high-availability-software-for-application-clustering/get-a-quote-safekit-en/)