{"id":81721,"date":"2022-09-04T11:46:18","date_gmt":"2022-09-04T09:46:18","guid":{"rendered":"https:\/\/www.evidian.com\/?page_id=81721"},"modified":"2026-02-08T08:40:16","modified_gmt":"2026-02-08T06:40:16","slug":"siemens-simatic-pcs-7-redundancy-high-availability-cluster-active-active","status":"publish","type":"page","link":"https:\/\/www.evidian.com\/products\/high-availability-software-for-application-clustering\/siemens-simatic-pcs-7-redundancy-high-availability-cluster-active-active\/","title":{"rendered":"High Availability for Siemens SIMATIC PCS 7: 2-Node SANless Cluster"},"content":{"rendered":"<div id=\"pl-81721\"  class=\"panel-layout\" ><div id=\"pg-81721-0\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-81721-0\" ><div id=\"pgc-81721-0-0\"  class=\"panel-grid-cell\" ><div id=\"panel-81721-0-0-0\" class=\"so-panel widget widget_sow-editor panel-first-child panel-last-child\" data-index=\"0\" ><div class=\"panel-widget-style panel-widget-style-for-81721-0-0-0\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<h1 style=\"text-align: left; color: white;\">High Availability for Siemens SIMATIC PCS 7: 2-Node SANless Cluster<\/h1>\n<h2 style=\"text-align: left; color: white; font-size: 22px;\">How SafeKit Implements SIMATIC PCS 7 Redundancy in Hyper-V? <\/h2>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><\/div><div id=\"pg-81721-1\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-81721-1\" ><div id=\"pgc-81721-1-0\"  class=\"panel-grid-cell\" ><div id=\"panel-81721-1-0-0\" class=\"so-panel widget widget_sow-editor panel-first-child panel-last-child\" data-index=\"1\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<div data-post-id=\"72907\" class=\"insert-page insert-page-72907 \"><div id=\"pl-72907\"  class=\"panel-layout\" ><div id=\"pg-72907-0\"  class=\"panel-grid panel-has-style\" ><div class=\"siteorigin-panels-stretch panel-row-style panel-row-style-for-72907-0\" data-stretch-type=\"full-width-stretch\" ><div id=\"pgc-72907-0-0\"  class=\"panel-grid-cell\" ><div id=\"panel-72907-0-0-0\" class=\"widget_text so-panel widget widget_custom_html panel-first-child panel-last-child\" data-index=\"0\" ><h3 class=\"widget-title\">Script ld+json for SEO and LLMO<\/h3><div class=\"textwidget custom-html-widget\"><script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n \n  \/* Defining the Architecture Diagram as the Main Image *\/\n  \"primaryImageOfPage\": { \n    \"@type\": \"ImageObject\", \n    \"url\": \"https:\/\/www.evidian.com\/wp-content\/uploads\/2026\/01\/safekit-vm-repli-720-720.jpg\",\n    \"width\": \"720\",\n    \"height\": \"720\",\n    \"caption\": \"SafeKit HA cluster for Siemens SIMATIC PCS7 inside Hyper-V\"\n  },\n  \"image\": \"https:\/\/www.evidian.com\/wp-content\/uploads\/2026\/01\/safekit-vm-repli-720-720.jpg\",\n\n  \"hasPart\": [\n    { \"@type\": \"WebPageElement\", \"isAccessibleForFree\": \"true\", \"cssSelector\": \"#safekit-hyperv-ha-cluster\", \"name\": \"How the SafeKit software simply implements a Siemens SIMATIC PCS7 high availability cluster without shared storage on a SAN?\" },\n    { \"@type\": \"WebPageElement\", \"isAccessibleForFree\": \"true\", \"cssSelector\": \"#safekit-hyperv-ha-how-it-works\", \"name\": \"How the SafeKit Hyper-V cluster works with Siemens SIMATIC PCS7?\" },\n    { \"@type\": \"WebPageElement\", \"isAccessibleForFree\": \"true\", \"cssSelector\": \"#safekit-hyperv-ha-comparison\", \"name\": \"Comparison: SafeKit for Siemens SIMATIC PCS7 inside Hyper-V vs. Native Hyper-V Clustering\" },\n    { \"@type\": \"WebPageElement\", \"isAccessibleForFree\": \"true\", \"cssSelector\": \"#videoguide-safekit-hyperv-cluster\", \"name\": \"Video Guide: Configuring a SafeKit HA cluster for Siemens SIMATIC PCS7 inside Hyper-V\" },\n    { \"@type\": \"WebPageElement\", \"isAccessibleForFree\": \"true\", \"cssSelector\": \"#hub\", \"name\": \"\ud83d\udd0d SafeKit High Availability Navigation Hub\" },\n    \n    \/* Integrated Video Object with Clips *\/\n    {\n      \"@type\": \"VideoObject\",\n      \"name\": \"SafeKit Video: Configuring a SafeKit HA cluster for Siemens SIMATIC PCS7 inside Hyper-V\",\n      \"description\": \"In this video, discover how SafeKit implements high availability for Hyper-V without the complexity of a SAN. Learn how to configure virtual machine replication across two nodes for Siemens SIMATIC PCS7.\",\n      \"thumbnailUrl\": [\"https:\/\/img.youtube.com\/vi\/H18s_-_CpmU\/maxresdefault.jpg\"],\n      \"uploadDate\": \"2024-03-01T08:00:00+08:00\",\n      \"duration\": \"PT5M15S\",\n      \"contentUrl\": \"https:\/\/www.youtube.com\/watch?v=H18s_-_CpmU\",\n      \"embedUrl\": \"https:\/\/www.youtube.com\/embed\/H18s_-_CpmU\",\n      \"hasPart\": [\n        { \"@type\": \"Clip\", \"name\": \"Architecture overview: 2 Hyper-V nodes and 2 virtual machines\", \"startOffset\": 0, \"endOffset\": 49, \"url\": \"https:\/\/www.youtube.com\/watch?v=H18s_-_CpmU&t=0s\" },\n        { \"@type\": \"Clip\", \"name\": \"Configuring the cluster and the hyperv.safe modules\", \"startOffset\": 49, \"endOffset\": 168, \"url\": \"https:\/\/www.youtube.com\/watch?v=H18s_-_CpmU&t=49s\" },\n        { \"@type\": \"Clip\", \"name\": \"Live testing: VM replication, migration, and automatic failover on crash\", \"startOffset\": 168, \"endOffset\": 315, \"url\": \"https:\/\/www.youtube.com\/watch?v=H18s_-_CpmU&t=168s\" }\n      ]\n    },\n\n    \/* Main Architecture Image Object *\/\n    { \n      \"@type\": \"ImageObject\", \n      \"url\": \"https:\/\/www.evidian.com\/wp-content\/uploads\/2026\/01\/safekit-vm-repli-720-720.jpg\", \n      \"caption\": \"SafeKit HA cluster for Siemens SIMATIC PCS7 inside Hyper-V\", \n      \"name\": \"SafeKit: A Siemens SIMATIC PCS7 cluster without shared storage on a SAN\",\n      \"width\": \"720\",\n      \"height\": \"720\"\n    },\n\n    { \"@type\": \"ImageObject\", \"url\": \"https:\/\/www.evidian.com\/wp-content\/uploads\/2023\/02\/safekit-prim-second-300.png\", \"caption\": \"File replication at byte level in a mirror Siemens SIMATIC PCS7 cluster\", \"name\": \"SafeKit: Byte-level file replication for Siemens SIMATIC PCS7\" },\n    { \"@type\": \"ImageObject\", \"url\": \"https:\/\/www.evidian.com\/wp-content\/uploads\/2023\/02\/safekit-stop-alone-300.png\", \"caption\": \"Failover of Siemens SIMATIC PCS7 in a mirror cluster\", \"name\": \"SafeKit: Automatic failover for Siemens SIMATIC PCS7\" },\n    { \"@type\": \"ImageObject\", \"url\": \"https:\/\/www.evidian.com\/wp-content\/uploads\/2023\/02\/safekit-resynchro-alone-300.png\", \"caption\": \"Failback in a mirror Siemens SIMATIC PCS7 cluster\", \"name\": \"SafeKit: Automatic resynchronization for Siemens SIMATIC PCS7\" },\n    { \"@type\": \"ImageObject\", \"url\": \"https:\/\/www.evidian.com\/wp-content\/uploads\/2023\/02\/safekit-second-prim-300.png\", \"caption\": \"Return to normal operation in a mirror Siemens SIMATIC PCS7 cluster\", \"name\": \"SafeKit: Return to normal operation for Siemens SIMATIC PCS7\" },\n    { \"@type\": \"ImageObject\", \"url\": \"https:\/\/www.evidian.com\/wp-content\/uploads\/2024\/03\/19-module-hyperv-edit-config-1.png\", \"caption\": \"SafeKit Web Console: 2-node Siemens SIMATIC PCS7 cluster dashboard for VM replication and automatic failover.\", \"name\": \"SafeKit Web Console: Siemens SIMATIC PCS7 cluster configuration\" },\n    { \"@type\": \"ImageObject\", \"url\": \"https:\/\/www.evidian.com\/wp-content\/uploads\/2024\/03\/14-monitoring-prim-second.png\", \"caption\": \"SafeKit Web Console: Real-time monitoring of a 2-node mirror Siemens SIMATIC PCS7 cluster showing PRIM and SECOND states with active data replication.\", \"name\": \"SafeKit Web Console: Siemens SIMATIC PCS7 real-time monitoring\" }\n  ],\n  \"mainEntity\": {\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n      { \"@type\": \"Question\", \"name\": \"What is the SafeKit HA solution for Siemens SIMATIC PCS7?\", \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"Evidian SafeKit provides high availability for Siemens SIMATIC PCS7 between two servers using a Hyper-V virtual machine with real-time replication and automatic failover, eliminating the need for shared SAN storage.\" } },\n      { \"@type\": \"Question\", \"name\": \"How can I run multiple applications in a high-availability Siemens SIMATIC PCS7 cluster without a SAN?\", \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"SafeKit allows multiple virtual machines to be replicated and restarted across two servers, enabling an active-active cluster where workloads can be balanced using the SafeKit console.\" } },\n      { \"@type\": \"Question\", \"name\": \"Should I choose high availability at the application level or the virtual machine (VM) level?\", \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"VM-level redundancy replicates the entire virtual machine for simplicity, while application-level redundancy is more granular, replicating specific data folders and services across physical, virtual, or cloud environments.\" } },\n      { \"@type\": \"Question\", \"name\": \"What are the distinctive advantages of SafeKit for Hyper-V high availability compared to competitors?\", \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"SafeKit features a shared-nothing architecture with integrated real-time replication, simplified 2-node clustering without a witness node, unified management, and custom checkers for VM-level crash detection.\" } },\n      { \"@type\": \"Question\", \"name\": \"How does SafeKit reduce the TCO (Total Cost of Ownership) compared to VMware-type solutions?\", \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"SafeKit reduces TCO through true 2-node efficiency, zero storage hardware costs, perpetual licensing instead of subscriptions, low operational expenses, and pricing that is independent of CPU or core counts.\" } },\n      { \"@type\": \"Question\", \"name\": \"Is it possible to set up a Siemens SIMATIC PCS7 cluster without SAN or complex clustering skills?\", \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"Yes, SafeKit enables quick implementation of a Siemens SIMATIC PCS7 cluster using local disks and automated failover scripts, making it significantly simpler to maintain than traditional enterprise virtualization stacks.\" } },\n      { \"@type\": \"Question\", \"name\": \"Beyond Siemens SIMATIC PCS7, which applications and environments can SafeKit protect?\", \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"SafeKit protects Hyper-V and KVM virtual machines, physical servers, containers like Docker and K3s, individual databases, and cloud infrastructure for a wide range of critical workloads.\" } },\n      { \"@type\": \"Question\", \"name\": \"1. How does real-time replication work for Siemens SIMATIC PCS7 ?\", \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"Server 1 (PRIM) runs the VM (virtual machine) containing Siemens SIMATIC PCS7. SafeKit replicates in real time the VM files (virtual hard disk, VM configuration). Only changes made in the files are replicated across the network synchronously with no data loss on failure.\" } },\n      { \"@type\": \"Question\", \"name\": \"2. What happens during an automatic Siemens SIMATIC PCS7 failover?\", \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"When Server 1 fails, Server 2 takes over. SafeKit restarts the VM containing Siemens SIMATIC PCS7 on Server 2. The VM continues to run on Server 2 by locally modifying its files. Failover time equals fault-detection time plus VM reboot time.\" } },\n      { \"@type\": \"Question\", \"name\": \"3. How is data synchronized after a Siemens SIMATIC PCS7 failure?\", \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"Failback involves restarting Server 1. SafeKit automatically resynchronizes the VM files without disturbing the VM containing Siemens SIMATIC PCS7, which continues running on Server 2.\" } },\n      { \"@type\": \"Question\", \"name\": \"4. How is normal Siemens SIMATIC PCS7 operation restored?\", \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"After reintegration, the VM files are in mirror mode. The system is back in high-availability mode with the VM containing Siemens SIMATIC PCS7 running on Server 2 and SafeKit replicating to Server 1. Roles can be swapped manually through the web console.\" } },\n      { \"@type\": \"Question\", \"name\": \"How to configure a SafeKit Siemens SIMATIC PCS7 Cluster?\", \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"Configuration is done via the SafeKit web console. Set the VM_PATH to the replicated directory where the Siemens SIMATIC PCS7  VM files reside and enter the VM_NAME.\" } },\n      { \"@type\": \"Question\", \"name\": \"How to monitor a SafeKit Siemens SIMATIC PCS7 cluster?\", \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"The management console displays server roles: PRIM (active node), SECOND (standby node), ALONE (redundancy lost), and Resynchronization progress. It allows for one-click failover orchestration and load distribution across multiple VMs.\" } }   \n    ]\n  }\n}\n<\/script><\/div><\/div><\/div><\/div><\/div><div id=\"pg-72907-1\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-72907-1\" ><div id=\"pgc-72907-1-0\"  class=\"panel-grid-cell\" ><div id=\"panel-72907-1-0-0\" class=\"so-panel widget widget_sow-editor panel-first-child panel-last-child\" data-index=\"1\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<section id=\"safekit-hyperv-tco\">\n<p><strong>SafeKit for Siemens SIMATIC PCS7 inside Hyper-V<\/strong> delivers seamless <strong>High Availability<\/strong> while significantly reducing TCO (Total Cost of Ownership). By eliminating the hardware and operational overhead of traditional clustering, SafeKit offers a lean, 2-node HA alternative to complex virtualization stacks.<\/p>\n<ul>\n<li><strong>Zero SAN Investment for HA:<\/strong> Achieve full redundancy using shared-nothing architecture. It works with standard local disks, removing the need for expensive SAN hardware, fiber channel switches, and specialized storage maintenance usually required for High Availability.<\/li>\n<li><strong>Hardware-Agnostic Redundancy:<\/strong> Avoid vendor lock-in. Build your High Availability cluster using any server brand or internal storage type, extending the lifecycle of existing hardware and lowering replacement costs.<\/li>\n<li><strong>Simplified HA Operations:<\/strong> No specialized \"clustering expert\" is required to maintain uptime. SafeKit\u2019s plug-and-play modules and unified web console reduce the man-hours needed for HA deployment and daily monitoring.<\/li>\n<li><strong>Cost-Predictable Licensing:<\/strong> Unlike subscription-heavy models, SafeKit provides High Availability via a one-time perpetual license. This ensures predictable budgeting and eliminates the risk of annual price hikes for critical infrastructure.<\/li>\n<li><strong>True 2-Node HA Efficiency:<\/strong> Most High Availability solutions require a third \"witness\" node to prevent split-brain. SafeKit delivers a robust 2-node cluster, saving 33% on hardware, power, and rack space from day one.<\/li>\n<\/ul>\n<p>By consolidating <strong>High Availability<\/strong> into a lightweight software layer, SafeKit delivers enterprise-grade redundancy and business continuity at a fraction of the cost of traditional virtualization suites.<\/p>\n<\/section>\n<\/div>\n<\/div><\/div><\/div><div id=\"pgc-72907-1-1\"  class=\"panel-grid-cell\" ><div id=\"panel-72907-1-1-0\" class=\"so-panel widget widget_sow-editor panel-first-child panel-last-child\" data-index=\"2\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<figure style=\"text-align: center;\"><img decoding=\"async\" style=\"width: 100%; height: auto; aspect-ratio: 1 \/ 1; display: block;\" title=\"SafeKit HA cluster for Siemens SIMATIC PCS7 inside Hyper-V\" src=\"https:\/\/www.evidian.com\/wp-content\/smush-webp\/2026\/01\/safekit-vm-repli-720-720.jpg.webp\" alt=\"SafeKit High Availability Siemens SIMATIC PCS7 Cluster Architecture\" width=\"720\" height=\"720\" \/><figcaption><strong>SafeKit HA cluster for Siemens SIMATIC PCS7 inside Hyper-V<\/strong><\/figcaption><\/figure>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><div id=\"pg-72907-2\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-72907-2\" ><div id=\"pgc-72907-2-0\"  class=\"panel-grid-cell\" ><div id=\"panel-72907-2-0-0\" class=\"so-panel widget widget_sow-button panel-first-child panel-last-child\" data-index=\"3\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-button so-widget-sow-button-flat-66466acb9e12-72907\"\n\t\t\t\n\t\t><div class=\"ow-button-base ow-button-align-center\"\n>\n\t\t\t<a\n\t\t\t\t\thref=\"\/products\/high-availability-software-for-application-clustering\/hyper-v-replication-automatic-failover-load-balancing\/safekit-quick-installation-guide-with-hyper-v\/?app=Siemens+SIMATIC+PCS7\"\n\t\t\t\t\tclass=\"sowb-button ow-icon-placement-left ow-button-hover\" \t>\n\t\t<span>\n\t\t\t\n\t\t\t\u26a1 Quick Hyper-V HA cluster installation guide  &gt;\t\t<\/span>\n\t\t\t<\/a>\n\t<\/div>\n<\/div><\/div><\/div><\/div><\/div><div id=\"pg-72907-3\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-72907-3\" ><div id=\"pgc-72907-3-0\"  class=\"panel-grid-cell\" ><div id=\"panel-72907-3-0-0\" class=\"so-panel widget widget_sow-editor panel-first-child panel-last-child\" data-index=\"4\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<div data-post-id=\"71458\" class=\"insert-page insert-page-71458 \"><div id=\"pl-71458\"  class=\"panel-layout\" ><div id=\"pg-71458-0\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-71458-0\" ><div id=\"pgc-71458-0-0\"  class=\"panel-grid-cell panel-grid-cell-empty\" ><\/div><div id=\"pgc-71458-0-1\"  class=\"panel-grid-cell\" ><div id=\"panel-71458-0-1-0\" class=\"so-panel widget widget_sow-button panel-first-child panel-last-child\" data-index=\"0\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-button so-widget-sow-button-atom-22117c521b6b-71458\"\n\t\t\t\n\t\t><div class=\"ow-button-base ow-button-align-center\"\n>\n\t\t\t<a\n\t\t\t\t\thref=\"https:\/\/www.evidian.com\/products\/high-availability-software-for-application-clustering\/contact-us-for-safekit\/\"\n\t\t\t\t\tclass=\"sowb-button ow-icon-placement-left ow-button-hover\" target=\"_blank\" rel=\"noopener noreferrer\" \t>\n\t\t<span>\n\t\t\t\n\t\t\t\ud83e\uddd1 Contact us\t\t<\/span>\n\t\t\t<\/a>\n\t<\/div>\n<\/div><\/div><\/div><div id=\"pgc-71458-0-2\"  class=\"panel-grid-cell\" ><div id=\"panel-71458-0-2-0\" class=\"so-panel widget widget_sow-button panel-first-child panel-last-child\" data-index=\"1\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-button so-widget-sow-button-atom-22117c521b6b-71458\"\n\t\t\t\n\t\t><div class=\"ow-button-base ow-button-align-center\"\n>\n\t\t\t<a\n\t\t\t\t\thref=\"https:\/\/www.evidian.com\/products\/high-availability-software-for-application-clustering\/safekit-free-trial\/\"\n\t\t\t\t\tclass=\"sowb-button ow-icon-placement-left ow-button-hover\" target=\"_blank\" rel=\"noopener noreferrer\" \t>\n\t\t<span>\n\t\t\t\n\t\t\t\ud83c\udf81 SafeKit free trial\t\t<\/span>\n\t\t\t<\/a>\n\t<\/div>\n<\/div><\/div><\/div><div id=\"pgc-71458-0-3\"  class=\"panel-grid-cell\" ><div id=\"panel-71458-0-3-0\" class=\"so-panel widget widget_sow-button panel-first-child panel-last-child\" data-index=\"2\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-button so-widget-sow-button-atom-22117c521b6b-71458\"\n\t\t\t\n\t\t><div class=\"ow-button-base ow-button-align-center\"\n>\n\t\t\t<a\n\t\t\t\t\thref=\"https:\/\/training.my.evidian.com\/mod\/page\/view.php?id=712\"\n\t\t\t\t\tclass=\"sowb-button ow-icon-placement-left ow-button-hover\" target=\"_blank\" rel=\"noopener noreferrer\" \t>\n\t\t<span>\n\t\t\t\n\t\t\t\ud83c\udfc5 Free certification\t\t<\/span>\n\t\t\t<\/a>\n\t<\/div>\n<\/div><\/div><\/div><div id=\"pgc-71458-0-4\"  class=\"panel-grid-cell panel-grid-cell-mobile-last\" ><div id=\"panel-71458-0-4-0\" class=\"so-panel widget widget_sow-button panel-first-child panel-last-child\" data-index=\"3\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-button so-widget-sow-button-atom-22117c521b6b-71458\"\n\t\t\t\n\t\t><div class=\"ow-button-base ow-button-align-center\"\n>\n\t\t\t<a\n\t\t\t\t\thref=\"https:\/\/www.evidian.com\/products\/high-availability-software-for-application-clustering\/get-a-quote-safekit-en\/\"\n\t\t\t\t\tclass=\"sowb-button ow-icon-placement-left ow-button-hover\" target=\"_blank\" rel=\"noopener noreferrer\" \t>\n\t\t<span>\n\t\t\t\n\t\t\t\ud83d\udcb0 Perpetual license cost\t\t<\/span>\n\t\t\t<\/a>\n\t<\/div>\n<\/div><\/div><\/div><div id=\"pgc-71458-0-5\"  class=\"panel-grid-cell panel-grid-cell-empty\" ><\/div><\/div><\/div><\/div><\/div>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><div id=\"pg-72907-4\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-72907-4\" ><div id=\"pgc-72907-4-0\"  class=\"panel-grid-cell\" ><div id=\"panel-72907-4-0-0\" class=\"so-panel widget widget_sow-editor panel-first-child panel-last-child\" data-index=\"5\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t><h3 class=\"widget-title\">TOC<\/h3>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<h2 id=\"toc\">Table of Contents<\/h2>\n<nav id=\"toc\" class=\"faq-item\">\n<ul>\n<li><a href=\"#safekit-hyperv-ha-cluster\">How the SafeKit software simply implements a Siemens SIMATIC PCS7 high availability cluster without shared storage on a SAN?<\/a><\/li>\n<li><a href=\"#safekit-hyperv-ha-how-it-works\">How the SafeKit Hyper-V cluster works with Siemens SIMATIC PCS7?<\/a><\/li>\n<li><a href=\"#safekit-hyperv-ha-comparison\">Comparison: SafeKit for Siemens SIMATIC PCS7 inside Hyper-V vs. Native Hyper-V Clustering<\/a><\/li>\n<li><a href=\"#videoguide-safekit-hyperv-cluster\">Video Guide: Configuring a SafeKit HA cluster for Siemens SIMATIC PCS7 inside Hyper-V<\/a><\/li>\n<li><a href=\"#hub\">\ud83d\udd0d SafeKit High Availability Navigation Hub<\/a><\/li>\n<\/ul>\n<\/nav>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><div id=\"pg-72907-5\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-72907-5\" ><div id=\"pgc-72907-5-0\"  class=\"panel-grid-cell\" ><div id=\"panel-72907-5-0-0\" class=\"so-panel widget widget_sow-editor panel-first-child panel-last-child\" data-index=\"6\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<h2 id=\"safekit-hyperv-ha-cluster\">How the SafeKit software simply implements a Siemens SIMATIC PCS7 high availability cluster without shared storage on a SAN?<\/h2>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><div id=\"pg-72907-6\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-72907-6\" ><div id=\"pgc-72907-6-0\"  class=\"panel-grid-cell\" ><div id=\"panel-72907-6-0-0\" class=\"so-panel widget widget_sow-editor panel-first-child panel-last-child\" data-index=\"7\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<article class=\"faq-item\">\n<header>\n<h3>What is the SafeKit HA solution for Siemens SIMATIC PCS7?<\/h3>\n<\/header>\n<p>SafeKit brings high availability to Siemens SIMATIC PCS7 between two servers of any brand.<\/p>\n<p>This article explains how to implement quickly a Siemens SIMATIC PCS7 cluster without shared storage on a SAN and without specific skills.<\/p>\n<p>The principle of the solution is to put Siemens SIMATIC PCS7 in a virtual machine under Hyper-V. SafeKit implements <strong>real-time replication and automatic failover of the virtual machine<\/strong>.<\/p>\n<p>Note that Hyper-V is the free hypervisor included in all Windows versions (even Windows for PC).<\/p>\n<\/article>\n<\/div>\n<\/div><\/div><\/div><div id=\"pgc-72907-6-1\"  class=\"panel-grid-cell\" ><div id=\"panel-72907-6-1-0\" class=\"so-panel widget widget_sow-editor panel-first-child panel-last-child\" data-index=\"8\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<article class=\"faq-item\">\n<header>\n<h3>How can I run multiple applications in a high-availability Siemens SIMATIC PCS7 cluster without a SAN?<\/h3>\n<\/header>\n<p>Several applications can be put in <strong>several virtual machines replicated and restarted by SafeKit<\/strong>. You have the possibility to migrate each virtual machine between both servers with the SafeKit console and thus balance the load in an <strong>active-active cluster<\/strong>.<br \/>\n<\/article>\n<\/div>\n<\/div><\/div><\/div><div id=\"pgc-72907-6-2\"  class=\"panel-grid-cell\" ><div id=\"panel-72907-6-2-0\" class=\"so-panel widget widget_sow-editor panel-first-child panel-last-child\" data-index=\"9\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<article class=\"faq-item\">\n<h3>Should I choose high availability at the application level or the virtual machine (VM) level?<\/h3>\n<p>With SafeKit, you have the flexibility to choose the redundancy model that fits your needs.<\/p>\n<p><strong>VM-level redundancy<\/strong> (for Hyper-V or KVM) is the simplest to implement as it replicates the entire virtual machine, requiring no knowledge of the internal application.<\/p>\n<p>Alternatively, <strong>application-level redundancy<\/strong> is more granular; it only replicates specific data folders and restarts the application services rather than the entire OS.<\/p>\n<p>While VM-level HA is easier to set up, application-level HA is hypervisor-agnostic and can run across physical, virtual, or cloud environments.<\/p>\n<\/article>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><div id=\"pg-72907-7\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-72907-7\" ><div id=\"pgc-72907-7-0\"  class=\"panel-grid-cell\" ><div id=\"panel-72907-7-0-0\" class=\"so-panel widget widget_sow-editor panel-first-child panel-last-child\" data-index=\"10\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<article class=\"faq-item\">\n<h3>What are the distinctive advantages of SafeKit for Hyper-V high availability compared to competitors?<\/h3>\n<p>SafeKit differentiates itself from traditional Hyper-V clustering solutions through its <strong>shared-nothing architecture<\/strong> and simplified management. While most competitors require a central SAN or vSAN to manage VM failover, SafeKit provides:<\/p>\n<ul>\n<li><strong>Integrated Real-Time Replication:<\/strong> Data synchronization is built directly into the solution, ensuring that Siemens SIMATIC PCS7 virtual machines are mirrored synchronously without the overhead of managing a separate storage layer.<\/li>\n<li><strong>Simplified 2-Node Clustering:<\/strong> Unlike enterprise stacks that recommend a 3-node \"witness\" quorum, SafeKit delivers full high availability with just two redundant servers. <a href=\"https:\/\/www.evidian.com\/products\/high-availability-software-for-application-clustering\/heartbeat-failover-quorum-windows-linux-aix-cluster\/\">Learn more about our heartbeat and quorum mechanism<\/a>.<\/li>\n<li><strong>Unified Management:<\/strong> Administrators can manage VM failover, replication, and load balancing through a single SafeKit console , making it accessible to teams without specialized clustering expertise.<\/li>\n<li><strong>Custom Checkers:<\/strong> SafeKit goes beyond hardware monitoring; it utilizes <strong>custom checkers<\/strong> to detect if a VM has crashed, automatically triggering a local restart or a failover to the redundant node. The system is also highly extensible, allowing for the easy integration of new, user-defined custom checkers tailored to your specific environment.<\/li>\n<\/ul>\n<\/article>\n<\/div>\n<\/div><\/div><\/div><div id=\"pgc-72907-7-1\"  class=\"panel-grid-cell\" ><div id=\"panel-72907-7-1-0\" class=\"so-panel widget widget_sow-editor panel-first-child panel-last-child\" data-index=\"11\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<article class=\"faq-item\">\n<h3>How does SafeKit reduce the TCO (Total Cost of Ownership) compared to VMware-type solutions?<\/h3>\n<p>Unlike most high-availability solutions on the market, SafeKit is designed to operate with the <strong>absolute minimum hardware overhead<\/strong>, without compromising security or reliability. Key savings compared to VMware or complex open-source alternatives include:<\/p>\n<ul>\n<li><strong>True 2-Node Efficiency:<\/strong> While most enterprise stacks or open-source solutions require a 3-node \"witness\" quorum to prevent split-brain, SafeKit delivers full high availability with just <strong>two redundant servers<\/strong>.<\/li>\n<li><strong>Zero Storage Costs:<\/strong> SafeKit uses a shared-nothing architecture that works with local disks, removing the need for expensive SAN or vSAN hardware and specialized storage networking.<\/li>\n<li><strong>No Forced Subscriptions:<\/strong> Unlike modern subscription-only models, SafeKit offers a <strong>perpetual license<\/strong>. You own your software, avoiding the \"subscription trap\" and unpredictable annual price hikes.<\/li>\n<li><strong>Low Operational Expense (OPEX):<\/strong> As a plug-and-play solution, it requires no specialized training or expensive external consultancy for maintenance, unlike complex open-source clustering tools.<\/li>\n<li><strong>CPU-Independent Pricing:<\/strong> Licensing is independent of the number of CPUs or cores. With just two licenses for two nodes, you can protect multiple Hyper-V virtual machines.<\/li>\n<\/ul>\n<\/article>\n<\/div>\n<\/div><\/div><\/div><div id=\"pgc-72907-7-2\"  class=\"panel-grid-cell\" ><div id=\"panel-72907-7-2-0\" class=\"so-panel widget widget_sow-editor panel-first-child\" data-index=\"12\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<article class=\"faq-item\">\n<h3>Is it possible to set up a Siemens SIMATIC PCS7 cluster without SAN or complex clustering skills?<\/h3>\n<p>Yes. This article explains how to <a href=\"\/products\/high-availability-software-for-application-clustering\/hyper-v-replication-automatic-failover-load-balancing\/safekit-quick-installation-guide-with-hyper-v\/?app=Siemens+SIMATIC+PCS7\"><strong>quickly implement a Hyper-V cluster<\/strong><\/a> without the need for specialized SAN management or complex HA clustering skills. By using SafeKit\u2019s <strong>automated failover scripts<\/strong> to handle the replication and restart of <strong>Siemens SIMATIC PCS7<\/strong> virtual machines, you get a robust redundancy solution that is significantly simpler to deploy and maintain than traditional enterprise virtualization stacks.<\/p>\n<\/article>\n<\/div>\n<\/div><\/div><div id=\"panel-72907-7-2-1\" class=\"so-panel widget widget_sow-editor panel-last-child\" data-index=\"13\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<article class=\"faq-item\">\n<h3>Beyond Siemens SIMATIC PCS7, which applications and environments can SafeKit protect?<\/h3>\n<p>SafeKit is a versatile high-availability solution that extends far beyond standard virtual machine failover. It enables <strong>synchronous real-time replication<\/strong> and automatic failover for a wide range of critical workloads, including:<\/p>\n<ul>\n<li><strong>Virtual &amp; Physical Environments:<\/strong> Complete Hyper-V or KVM virtual machines.<\/li>\n<li><strong>Container Orchestration:<\/strong> Docker, Podman, and K3s (Kubernetes) environments.<\/li>\n<li><strong>Data &amp; Services:<\/strong> Individual file directories, services, and various databases.<\/li>\n<li><strong>Cloud Infrastructure:<\/strong> High availability for Cloud applications.<\/li>\n<\/ul>\n<p>SafeKit also provides <strong>Farm Clusters<\/strong> with native <strong>Network Load Balancing and Failover<\/strong> for stateless applications like <strong>Web Servers<\/strong>.<\/p>\n<p><a href=\"\/products\/high-availability-software-for-application-clustering\/cluster-configuration\/\">Explore the full list of supported HA solutions here.<\/a><\/p>\n<\/article>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><div id=\"pg-72907-8\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-72907-8\" ><div id=\"pgc-72907-8-0\"  class=\"panel-grid-cell\" ><div id=\"panel-72907-8-0-0\" class=\"so-panel widget widget_sow-editor panel-first-child panel-last-child\" data-index=\"14\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<h2 id=\"safekit-hyperv-ha-how-it-works\">How the SafeKit Hyper-V cluster works with Siemens SIMATIC PCS7?<\/h2>\n<p>The following steps are described for one virtual machine inside one mirror module. Each replicated virtual machine runs in an independent mirror module (with a maximum of 32 virtual machines) with a primary server that can be either the Hyper-V server 1 or the Hyper-V server 2.<\/p>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><div id=\"pg-72907-9\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-72907-9\" ><div id=\"pgc-72907-9-0\"  class=\"panel-grid-cell\" ><div id=\"panel-72907-9-0-0\" class=\"so-panel widget widget_sow-editor panel-first-child panel-last-child\" data-index=\"15\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<article class=\"faq-item\">\n<header>\n<h3>1. How does real-time replication work for Siemens SIMATIC PCS7 ?<\/h3>\n<\/header>\n<p>Server 1 (PRIM) runs the VM (virtual machine) containing Siemens SIMATIC PCS7. SafeKit replicates in real time the VM files (virtual hard disk, VM configuration). Only changes made in the files are replicated across the network.<\/p>\n<figure style=\"text-align: center;\"><img decoding=\"async\" title=\"SafeKit: Byte-level file replication for Siemens SIMATIC PCS7\" src=\"https:\/\/www.evidian.com\/wp-content\/smush-webp\/2023\/02\/safekit-prim-second-300.png.webp\" alt=\"File replication at byte level in a mirror Siemens SIMATIC PCS7 cluster\" width=\"300\" height=\"120\" \/><\/figure>\n<p>The replication is <a href=\"\/safekit\/synchronous-replication-vs-asynchronous-replication.htm\">synchronous<\/a> with no data loss on failure contrary to asynchronous replication.<\/p>\n<p>You just have to configure the VM directory name in SafeKit.\u00a0There are no pre-requisites on disk organization. The directory may be located in the system disk.<\/p>\n<\/article>\n<\/div>\n<\/div><\/div><\/div><div id=\"pgc-72907-9-1\"  class=\"panel-grid-cell\" ><div id=\"panel-72907-9-1-0\" class=\"so-panel widget widget_sow-editor panel-first-child panel-last-child\" data-index=\"16\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<article class=\"faq-item\">\n<header>\n<h3>2. What happens during an automatic Siemens SIMATIC PCS7 failover?<\/h3>\n<\/header>\n<p>When Server 1 fails, Server 2 takes over. SafeKit restarts the VM containing Siemens SIMATIC PCS7 on Server 2.\u00a0Hyper-V finds the files replicated by SafeKit uptodate on Server 2.<br \/>\nThe VM continues to run on Server 2 by locally modifying its files that are no longer replicated to Server 1.<\/p>\n<figure style=\"text-align: center;\"><img decoding=\"async\" title=\"SafeKit: Automatic failover for Siemens SIMATIC PCS7\" src=\"https:\/\/www.evidian.com\/wp-content\/smush-webp\/2023\/02\/safekit-stop-alone-300.png.webp\" alt=\"Failover of Siemens SIMATIC PCS7 in a mirror cluster\" width=\"300\" height=\"122\" \/><\/figure>\n<p>The failover time is equal to the fault-detection time (set to 30 seconds by default) plus the VM reboot time.<\/p>\n<\/article>\n<\/div>\n<\/div><\/div><\/div><div id=\"pgc-72907-9-2\"  class=\"panel-grid-cell\" ><div id=\"panel-72907-9-2-0\" class=\"so-panel widget widget_sow-editor panel-first-child panel-last-child\" data-index=\"17\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<article class=\"faq-item\">\n<header>\n<h3>3. How is data synchronized after a Siemens SIMATIC PCS7 failure?<\/h3>\n<\/header>\n<p>Failback involves restarting Server 1 after fixing the problem that caused it to fail.\u00a0SafeKit automatically resynchronizes the VM files.<\/p>\n<figure style=\"text-align: center;\"><img decoding=\"async\" title=\"SafeKit: Automatic resynchronization for Siemens SIMATIC PCS7\" src=\"https:\/\/www.evidian.com\/wp-content\/smush-webp\/2023\/02\/safekit-resynchro-alone-300.png.webp\" alt=\"Failback in a mirror Siemens SIMATIC PCS7 cluster\" width=\"300\" height=\"121\" \/><\/figure>\n<p>Failback takes place without disturbing the VM containing Siemens SIMATIC PCS7, which can continue running on Server 2.<\/p>\n<\/article>\n<\/div>\n<\/div><\/div><\/div><div id=\"pgc-72907-9-3\"  class=\"panel-grid-cell\" ><div id=\"panel-72907-9-3-0\" class=\"so-panel widget widget_sow-editor panel-first-child panel-last-child\" data-index=\"18\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<article class=\"faq-item\">\n<header>\n<h3>4. How is normal Siemens SIMATIC PCS7 operation restored?<\/h3>\n<\/header>\n<p>After reintegration, the VM files are once again in mirror mode, as in step 1.\u00a0The system is back in high-availability mode, with the VM containing Siemens SIMATIC PCS7 running on Server 2 and SafeKit replicating file updates to Server 1.<\/p>\n<figure style=\"text-align: center;\"><img decoding=\"async\" title=\"SafeKit: Return to normal operation for Siemens SIMATIC PCS7\" src=\"https:\/\/www.evidian.com\/wp-content\/smush-webp\/2023\/02\/safekit-second-prim-300.png.webp\" alt=\"Return to normal operation in a mirror Siemens SIMATIC PCS7 cluster\" width=\"300\" height=\"125\" \/><\/figure>\n<p>If the administrator wishes the VM to run on Server 1, this can be done manually through the web console at an appropriate time, or automatically through configuration.<\/p>\n<\/article>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><div id=\"pg-72907-10\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-72907-10\" ><div id=\"pgc-72907-10-0\"  class=\"panel-grid-cell\" ><div id=\"panel-72907-10-0-0\" class=\"so-panel widget widget_sow-editor panel-first-child panel-last-child\" data-index=\"19\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<article class=\"faq-item\">\n<header>\n<h3 id=\"safekit-mirror-cluster-configure\">How to configure a SafeKit Siemens SIMATIC PCS7 Cluster?<\/h3>\n<\/header>\n<figure style=\"text-align: center; margin-bottom: 20px;\"><a href=\"https:\/\/www.evidian.com\/wp-content\/smush-webp\/2024\/03\/19-module-hyperv-edit-config-1.png.webp\" target=\"_blank\" rel=\"noopener\"><br \/>\n<img decoding=\"async\" title=\"SafeKit Web Console: Siemens SIMATIC PCS7 cluster configuration\" src=\"https:\/\/www.evidian.com\/wp-content\/smush-webp\/2024\/03\/19-module-hyperv-edit-config-1.png.webp\" alt=\"SafeKit Web Console: 2-node Siemens SIMATIC PCS7 cluster dashboard for VM replication and automatic failover.\" width=\"694\" height=\"720\" \/><br \/>\n<\/a><\/figure>\n<p>The <strong>SafeKit web console<\/strong> provides an intuitive interface to configure high availability of your critical applications. In just a few steps, you can configure a <strong>SafeKit Siemens SIMATIC PCS7 cluster<\/strong> to ensure business continuity:<\/p>\n<ul>\n<li>Put in <code>VM_PATH<\/code>, the root path of the replicated directory (D:\/Repli-Hyper-V) where the Siemens SIMATIC PCS7 VM files reside.<\/li>\n<li>Enter in <code>VM_NAME<\/code>, the name of the virtual machine (VM1) containing Siemens SIMATIC PCS7.<\/li>\n<\/ul>\n<p>The SafeKit cluster includes a dedicated <a title=\"Technical details on heartbeat and split-brain prevention\" href=\"https:\/\/www.evidian.com\/products\/high-availability-software-for-application-clustering\/heartbeat-failover-quorum-windows-linux-aix-cluster\/\">split-brain checker to resolve network isolation issues<\/a> without the need for a third witness machine or an additional heartbeat network.<\/p>\n<\/article>\n<\/div>\n<\/div><\/div><\/div><div id=\"pgc-72907-10-1\"  class=\"panel-grid-cell\" ><div id=\"panel-72907-10-1-0\" class=\"so-panel widget widget_sow-editor panel-first-child panel-last-child\" data-index=\"20\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<article class=\"faq-item\">\n<header>\n<h3 id=\"safekit-mirror-cluster-monitoring\">How to monitor a SafeKit Siemens SIMATIC PCS7 cluster?<\/h3>\n<\/header>\n<figure style=\"text-align: center; margin-bottom: 20px;\"><a href=\"https:\/\/www.evidian.com\/wp-content\/smush-webp\/2024\/03\/14-monitoring-prim-second.png.webp\" target=\"_blank\" rel=\"noopener\"><br \/>\n<img decoding=\"async\" title=\"SafeKit Web Console: Siemens SIMATIC PCS7 real-time monitoring\" src=\"https:\/\/www.evidian.com\/wp-content\/smush-webp\/2024\/03\/14-monitoring-prim-second.png.webp\" alt=\"SafeKit Web Console: Real-time monitoring of a 2-node mirror Siemens SIMATIC PCS7 cluster showing PRIM and SECOND states with active data replication.\" width=\"604\" height=\"498\" \/><br \/>\n<\/a><\/figure>\n<p>The <strong>SafeKit management console<\/strong> offers a unified view of your high availability infrastructure. It allows administrators to monitor the <strong>operational state<\/strong> of the cluster and track data synchronization in real-time.<\/p>\n<p>For a 2-node Siemens SIMATIC PCS7 cluster, the console clearly displays the roles of each server:<\/p>\n<ul>\n<li><strong>PRIM (Primary):<\/strong> The active node currently running the application and managing the Virtual IP. It performs writes to the local storage and real-time replication to the secondary node.<\/li>\n<li><strong>SECOND (Secondary):<\/strong> The standby node receiving synchronous byte-level updates. It is ready to take over instantly if the Primary fails.<\/li>\n<li><strong>ALONE State:<\/strong> Visually alerts you when the cluster is running on a single node (e.g., during maintenance or after a failure), indicating that redundancy is temporarily lost.<\/li>\n<li><strong>Resynchronization Progress:<\/strong> When a failed node recovers, its status turns orange during background data reintegration, ensuring no downtime during the \"return to normal\" phase.<\/li>\n<\/ul>\n<p>Beyond simple status icons, the interface provides <strong>one-click failover orchestration<\/strong>, allowing you to manually reassign the primary role for planned maintenance while ensuring continuous availability for user activity.<\/p>\n<p>Note that if you deploy several VMs for replication and failover, you will have multiple PRIM\/SECOND widgets. This allows independent failover for each VM and the ability to distribute the load across servers.<\/p>\n<\/article>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><div id=\"pg-72907-11\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-72907-11\" ><div id=\"pgc-72907-11-0\"  class=\"panel-grid-cell\" ><div id=\"panel-72907-11-0-0\" class=\"so-panel widget widget_sow-editor panel-first-child panel-last-child\" data-index=\"21\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<section>\n<h2 id=\"safekit-hyperv-ha-comparison\">Comparison: SafeKit for Siemens SIMATIC PCS7 inside Hyper-V vs. Native Hyper-V Clustering<\/h2>\n<div class=\"table-container-mobile\">\n<table class=\"border vertical-middle horizontal-center\" width=\"100%\">\n<thead>\n<tr>\n<th scope=\"col\">Feature<\/th>\n<th scope=\"col\">SafeKit for Siemens SIMATIC PCS7 inside Hyper-V<\/th>\n<th scope=\"col\">MS Failover Clustering<\/th>\n<th scope=\"col\">Hyper-V Replica<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<th scope=\"row\">Architecture<\/th>\n<td><strong>SANless (Shared-Nothing)<\/strong><\/td>\n<td>Shared Storage (SAN\/S2D)<\/td>\n<td>Shared-Nothing<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Failover Logic<\/th>\n<td><strong>Fully Automatic<\/strong><\/td>\n<td>Fully Automatic<\/td>\n<td>Manual Intervention (not a HA solution)<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Replication Type<\/th>\n<td>Synchronous (Zero RPO)<\/td>\n<td>Synchronous (via SAN)<\/td>\n<td>Asynchronous (Data Loss)<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Quorum Requirement<\/th>\n<td><strong>None (Built-in Checker)<\/strong><\/td>\n<td>3rd Node \/ Cloud Witness<\/td>\n<td>None<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">AD Dependency<\/th>\n<td>Independent<\/td>\n<td><strong>Required (Active Directory)<\/strong><\/td>\n<td>Independent<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Deployment Complexity<\/th>\n<td>Low (&lt; 30 Minutes)<\/td>\n<td>High (AD, Storage, Quorum)<\/td>\n<td>Medium<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><div id=\"pg-72907-12\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-72907-12\" ><div id=\"pgc-72907-12-0\"  class=\"panel-grid-cell\" ><div id=\"panel-72907-12-0-0\" class=\"so-panel widget widget_sow-editor panel-first-child panel-last-child\" data-index=\"22\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<h3>Conclusion<\/h3>\n<p>By eliminating the need for a SAN and simplifying the setup\u2014removing dependencies like <strong>Active Directory<\/strong> and specialized <strong>Quorum<\/strong> configurations\u2014SafeKit provides a lean, hardware-agnostic alternative. This results in a significantly lower TCO while ensuring that your Siemens SIMATIC PCS7 environment remains resilient with zero data loss and automated recovery.<\/p>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><div id=\"pg-72907-13\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-72907-13\" ><div id=\"pgc-72907-13-0\"  class=\"panel-grid-cell\" ><div id=\"panel-72907-13-0-0\" class=\"so-panel widget widget_sow-editor panel-first-child panel-last-child\" data-index=\"23\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<h2 id=\"videoguide-safekit-hyperv-cluster\">Video Guide: Configuring a SafeKit HA cluster for Siemens SIMATIC PCS7 inside Hyper-V<\/h2>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><div id=\"pg-72907-14\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-72907-14\" ><div id=\"pgc-72907-14-0\"  class=\"panel-grid-cell\" ><div id=\"panel-72907-14-0-0\" class=\"so-panel widget widget_sow-editor panel-first-child panel-last-child\" data-index=\"24\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<article>\n<header>\n<h3 id=\"demo-hyperv\"><a href=\"https:\/\/www.youtube.com\/embed\/H18s_-_CpmU?rel=0&amp;autoplay=1\" target=\"_blank\" rel=\"noopener\">SafeKit Video: Virtual Machine-Level Clustering with Hyper-V (5:15)<\/a><\/h3>\n<\/header>\n<section>In this video, discover how SafeKit implements <strong>high availability for Hyper-V<\/strong> without the complexity of a SAN. Learn to configure <strong>virtual machine replication<\/strong> across two nodes to ensure seamless failover for your critical virtualized workloads.<\/section>\n<section>\n<h3>Video Highlights<\/h3>\n<ol>\n<li><a href=\"https:\/\/www.youtube.com\/embed\/H18s_-_CpmU?rel=0&amp;autoplay=1&amp;start=0&amp;end=49\" target=\"_blank\" rel=\"noopener\">Architecture overview: 2 Hyper-V nodes and 2 virtual machines<\/a> (0:49)<\/li>\n<li><a href=\"https:\/\/www.youtube.com\/embed\/H18s_-_CpmU?rel=0&amp;autoplay=1&amp;start=49&amp;end=168\" target=\"_blank\" rel=\"noopener\">Configuring the cluster and the hyperv.safe modules<\/a> (1:59)<\/li>\n<li><a href=\"https:\/\/www.youtube.com\/embed\/H18s_-_CpmU?rel=0&amp;autoplay=1&amp;start=168\" target=\"_blank\" rel=\"noopener\">Live testing: VM replication, migration, and automatic failover on crash<\/a> (2:26)<\/li>\n<\/ol>\n<\/section>\n<\/article>\n<aside class=\"cta-section\">\n<h3>Step-by-Step Implementation:<\/h3>\n<ul>\n<li><a href=\"\/products\/high-availability-software-for-application-clustering\/hyper-v-replication-automatic-failover-load-balancing\/safekit-quick-installation-guide-with-hyper-v\/?app=Siemens+SIMATIC+PCS7\">Start your free trial and follow the Hyper-V quick installation guide<\/a><\/li>\n<\/ul>\n<\/aside>\n<\/div>\n<\/div><\/div><\/div><div id=\"pgc-72907-14-1\"  class=\"panel-grid-cell\" ><div id=\"panel-72907-14-1-0\" class=\"so-panel widget widget_sow-editor panel-first-child panel-last-child\" data-index=\"25\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t\n<div class=\"video-container\">\n    <iframe title=\"SafeKit Video: Virtual Machine-Level Clustering with Hyper-V (5:15)\" \n            src=\"https:\/\/www.youtube.com\/embed\/foo6YKg5Dmw?rel=0&amp;cc_load_policy=1&amp;hl=en&amp;cc_lang_pref=en\" \n            width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><br \/>\n    <\/iframe>\n  <\/div>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><div id=\"pg-81721-2\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-81721-2\" ><div id=\"pgc-81721-2-0\"  class=\"panel-grid-cell\" ><div id=\"panel-81721-2-0-0\" class=\"so-panel widget widget_sow-editor panel-first-child panel-last-child\" data-index=\"2\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<div data-post-id=\"238121\" class=\"insert-page insert-page-238121 \"><div id=\"pl-238121\"  class=\"panel-layout\" ><div id=\"pg-238121-0\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-238121-0\" ><div id=\"pgc-238121-0-0\"  class=\"panel-grid-cell\" ><div id=\"panel-238121-0-0-0\" class=\"widget_text so-panel widget widget_custom_html panel-first-child panel-last-child\" data-index=\"0\" ><div class=\"textwidget custom-html-widget\"><div id=\"siemens-content\" style=\"display: none;\">\n    <h3>About products under Siemens LMS licensing<\/h3>\n    <ul>\n        <li>To avoid the broken Siemens license on failover, the dongle containing the Siemens key can be put in a USB over IP device (like DIGI AnywhereUSB).<\/li>\n        <li>The dongle can also be put in an external PC with the <a href=\"https:\/\/sid.siemens.com\/r\/A6V10426066\/16779394955__2.6_en-US_16791369099\" target=\"_blank\" rel=\"noopener\">LMS license server<\/a> on the PC.<\/li>\n        <li>In recent versions of the Siemens licensing system, the license key can be put in the Trusted Platform Module of the VM.<\/li>\n    <\/ul>\n<\/div>\n\n<script>\n(function() {\n    \/\/ We wrap the logic in a function to ensure the DOM is ready\n    var checkSiemens = function() {\n        var urlParams = new URLSearchParams(window.location.search);\n        var appValue = urlParams.get('app') || '';\n        var element = document.getElementById('siemens-content');\n\n        \/\/ The 'null' error happened because 'element' wasn't found yet\n        if (element && appValue.includes('Siemens')) {\n            element.style.display = 'block';\n        }\n    };\n\n    \/\/ Run immediately\n    if (document.readyState === 'loading') {\n        document.addEventListener('DOMContentLoaded', checkSiemens);\n    } else {\n        checkSiemens();\n    }\n})();\n<\/script><\/div><\/div><\/div><\/div><\/div><\/div><\/div>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><div id=\"pg-81721-3\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-81721-3\" ><div id=\"pgc-81721-3-0\"  class=\"panel-grid-cell\" ><div id=\"panel-81721-3-0-0\" class=\"so-panel widget widget_sow-editor panel-first-child panel-last-child\" data-index=\"3\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<div data-post-id=\"73065\" class=\"insert-page insert-page-73065 \"><\/div>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><div id=\"pg-81721-4\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-81721-4\" ><div id=\"pgc-81721-4-0\"  class=\"panel-grid-cell\" ><div id=\"panel-81721-4-0-0\" class=\"so-panel widget widget_sow-editor panel-first-child panel-last-child\" data-index=\"4\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<div data-post-id=\"211350\" class=\"insert-page insert-page-211350 \"><div id=\"pl-211350\"  class=\"panel-layout\" ><div id=\"pg-211350-0\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-211350-0\" ><div id=\"pgc-211350-0-0\"  class=\"panel-grid-cell\" ><div id=\"panel-211350-0-0-0\" class=\"so-panel widget widget_sow-editor panel-first-child panel-last-child\" data-index=\"0\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<h2><a name=\"security-case\"><\/a>SafeKit, a recognized solution on the SCADA market<\/h2>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><div id=\"pg-211350-1\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-211350-1\" ><div id=\"pgc-211350-1-0\"  class=\"panel-grid-cell\" ><div id=\"panel-211350-1-0-0\" class=\"so-panel widget widget_sow-headline panel-first-child\" data-index=\"1\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-headline so-widget-sow-headline-default-3e9ead5b2c90-211350\"\n\t\t\t\n\t\t><div class=\"sow-headline-container \">\n\t\t\t\t\t\t\t<h3 class=\"sow-headline\">\n\t\t\t\t\t\tSolution preferred by Siemens\t\t\t\t\t\t<\/h3>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"decoration\">\n\t\t\t\t\t\t<div class=\"decoration-inside\"><\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n<\/div><\/div><div id=\"panel-211350-1-0-1\" class=\"so-panel widget widget_sow-editor panel-last-child\" data-index=\"2\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<p style=\"text-align: center;\"><a href=\"https:\/\/xcelerator.siemens.com\/global\/en\/all-offerings\/products\/safekit.html\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/www.evidian.com\/wp-content\/smush-webp\/2023\/01\/desigo-cc-1280-250-1.jpg.webp\" alt=\"SafeKit with the Siemens Desigo CC SCADA system\" \/><\/a><\/p>\n<p>SafeKit is available in the <a href=\"https:\/\/xcelerator.siemens.com\/global\/en\/all-offerings\/products\/safekit.html\" target=\"_blank\" rel=\"noopener\">Siemens marketplace<\/a> with its SCADA sofware: <a href=\"\/products\/high-availability-software-for-application-clustering\/siemens-desigo-cc-redundancy-high-availability-cluster-active-active\/\" target=\"_blank\" rel=\"noopener\">Desigo CC<\/a> (building management), <a href=\"\/products\/high-availability-software-for-application-clustering\/siemens-simatic-wincc-redundancy-high-availability-cluster-active-active\/\" target=\"_blank\" rel=\"noopener\">SIMATIC WinCC<\/a>, <a href=\"\/products\/high-availability-software-for-application-clustering\/siemens-simatic-pcs-7-redundancy-high-availability-cluster-active-active\/\" target=\"_blank\" rel=\"noopener\">SIMATIC PCS 7<\/a> and also with the <a href=\"\/products\/high-availability-software-for-application-clustering\/siemens-siveillance-redundancy-high-availability-cluster-active-active\/\" target=\"_blank\" rel=\"noopener\">Siveillance suite<\/a> (video and access control).<\/p>\n<p>SafeKit is deployed by Siemens in Australia, France, the Netherlands, Qatar, Switzerland, the UAE, the UK, the US.<\/p>\n<\/div>\n<\/div><\/div><\/div><div id=\"pgc-211350-1-1\"  class=\"panel-grid-cell\" ><div id=\"panel-211350-1-1-0\" class=\"so-panel widget widget_sow-headline panel-first-child\" data-index=\"3\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-headline so-widget-sow-headline-default-ccfee98eef72-211350\"\n\t\t\t\n\t\t><div class=\"sow-headline-container \">\n\t\t\t\t\t\t\t<h3 class=\"sow-headline\">\n\t\t\t\t\t\tSafeKit chosen by Alstef Group\t\t\t\t\t\t<\/h3>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"decoration\">\n\t\t\t\t\t\t<div class=\"decoration-inside\"><\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n<\/div><\/div><div id=\"panel-211350-1-1-1\" class=\"so-panel widget widget_sow-editor panel-last-child\" data-index=\"4\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<p style=\"text-align: center;\"><a href=\"https:\/\/alstefgroup.com\/baggage-handling\/software\/bagware\/\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/www.evidian.com\/wp-content\/smush-webp\/2023\/01\/alstef-bagware-1280-250-1.jpg.webp\" alt=\"SafeKit with the Alstef Group SCADA system, BAGware\" \/><\/a><\/p>\n<p>Alstef Group, a key player in baggage handling systems, deploys SafeKit for redundancy and high availability of its <a href=\"https:\/\/alstefgroup.com\/baggage-handling\/software\/bagware\/\" target=\"_blank\" rel=\"noopener\">SCADA software suite, BAGware<\/a>.<\/p>\n<p>SafeKit has been deployed by Alstef Group in many airports with BAGware.<\/p>\n<\/div>\n<\/div><\/div><\/div><div id=\"pgc-211350-1-2\"  class=\"panel-grid-cell\" ><div id=\"panel-211350-1-2-0\" class=\"so-panel widget widget_sow-headline panel-first-child\" data-index=\"5\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-headline so-widget-sow-headline-default-805cce2b1d4d-211350\"\n\t\t\t\n\t\t><div class=\"sow-headline-container \">\n\t\t\t\t\t\t\t<h3 class=\"sow-headline\">\n\t\t\t\t\t\tFives Syleps has chosen SafeKit\t\t\t\t\t\t<\/h3>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"decoration\">\n\t\t\t\t\t\t<div class=\"decoration-inside\"><\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n<\/div><\/div><div id=\"panel-211350-1-2-1\" class=\"so-panel widget widget_sow-editor panel-last-child\" data-index=\"6\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<p style=\"text-align: center;\"><a href=\"https:\/\/www.syleps.com\/en\/\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/www.evidian.com\/wp-content\/smush-webp\/2023\/01\/fives-syleps-1280-250.jpg.webp\" alt=\"SafeKit with the Fives Syleps automated logistics system\" \/><\/a><\/p>\n<p>Fives Syleps, a key player in automated logistics, deploys SafeKit for redundancy and high availability of <a href=\"https:\/\/www.syleps.com\/en\/\" target=\"_blank\" rel=\"noopener\">its software suite<\/a>.<\/p>\n<p>SafeKit has been deployed by Fives Syleps in many factories.<\/p>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><div id=\"pg-81721-5\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-81721-5\" ><div id=\"pgc-81721-5-0\"  class=\"panel-grid-cell\" ><div id=\"panel-81721-5-0-0\" class=\"so-panel widget widget_sow-editor panel-first-child panel-last-child\" data-index=\"5\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<div data-post-id=\"246517\" class=\"insert-page insert-page-246517 \"><div id=\"pl-246517\"  class=\"panel-layout\" ><div id=\"pg-246517-0\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-246517-0\" ><div id=\"pgc-246517-0-0\"  class=\"panel-grid-cell\" ><div id=\"panel-246517-0-0-0\" class=\"so-panel widget widget_sow-editor panel-first-child panel-last-child\" data-index=\"0\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<article>\n<header>\n<h2 id=\"hub\">\ud83d\udd0d SafeKit High Availability Navigation Hub<\/h2>\n<\/header>\n<div class=\"table-container-mobile\">\n<table class=\"border vertical-middle\">\n<caption>Explore SafeKit: Features, technical videos, documentation, and free trial<\/caption>\n<thead>\n<tr>\n<th scope=\"col\">Resource Type<\/th>\n<th scope=\"col\">Description<\/th>\n<th scope=\"col\">Direct Link<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<th scope=\"row\"><strong>Key Features<\/strong><\/th>\n<td>Why Choose SafeKit for Simple and Cost-Effective High Availability?<\/td>\n<td>\n        <a href=\"\/products\/high-availability-software-for-application-clustering\/#why-choose-safekit-for-ha\" title=\"Discover SafeKit features for simple and cost-effective high availability\">See Why Choose SafeKit for High Availability<\/a>\n    <\/td>\n<\/tr>\n<tr>\n<th scope=\"row\"><strong>Deployment Model<\/strong><\/th>\n<td>All-in-One SANless HA: Shared-Nothing Software Clustering<\/td>\n<td>\n        <a href=\"\/products\/high-availability-software-for-application-clustering\/#all-in-one-sanless-ha\" title=\"Learn about all-in-one SANless high availability with shared-nothing software clustering\">See SafeKit All-in-One SANless HA<\/a>\n    <\/td>\n<\/tr>\n<tr>\n<th scope=\"row\"><strong>Partners<\/strong><\/th>\n<td>SafeKit: The Benchmark in High Availability for Partners<\/td>\n<td><a title=\"Explore SafeKit high availability partnership opportunities and benchmark solutions\" href=\"\/products\/high-availability-software-for-application-clustering\/#safekit-ha-benchmark-for-partners\">See Why SafeKit Is the HA Benchmark for Partners<\/a><\/td>\n<\/tr>\n<tr>\n<th scope=\"row\"><strong>HA Strategies<\/strong><\/th>\n<td>SafeKit: Infrastructure (VM) vs. Application-Level High Availability<\/td>\n<td><a href=\"\/products\/high-availability-software-for-application-clustering\/#safekit-ha-redundancy-choices\" title=\"Compare VM-level redundancy with SafeKit application-level high availability strategies\">See SafeKit HA &amp; Redundancy: VM vs. Application Level<\/a>\n    <\/td>\n<\/tr>\n<tr>\n<th scope=\"row\"><strong>Technical Specifications<\/strong><\/th>\n<td>Technical Limitations for SafeKit Clustering<\/td>\n<td><a title=\"Technical requirements and limitations for SafeKit application clustering\" href=\"\/products\/high-availability-software-for-application-clustering\/#safekit-ha-limitations\">See SafeKit High Availability Limitations<\/a><\/td>\n<\/tr>\n<tr>\n<th scope=\"row\"><strong>Proof of Concept<\/strong><\/th>\n<td>SafeKit: High Availability Configuration &amp; Failover Demos<\/td>\n<td><a title=\"Step-by-step videos on SafeKit high availability, from installation to automated failover\" href=\"\/products\/high-availability-software-for-application-clustering\/#safekit-failover-tutorials\">See SafeKit Failover Tutorials<\/a><\/td>\n<\/tr>\n<tr>\n<th scope=\"row\"><strong>Architecture<\/strong><\/th>\n<td>How the SafeKit Mirror Cluster works (Real-Time Replication &amp; Failover)<\/td>\n<td><a title=\"See technical architecture and failover mechanism of SafeKit Mirror Cluster\" href=\"\/products\/high-availability-software-for-application-clustering\/#safekit-mirror-cluster\">See SafeKit Mirror Cluster: Real-Time Replication &amp; Failover<\/a><\/td>\n<\/tr>\n<tr>\n<th scope=\"row\"><strong>Architecture<\/strong><\/th>\n<td>How the SafeKit Farm Cluster works (Network Load Balancing & Failover)<\/td>\n<td>\n        <a href=\"\/products\/high-availability-software-for-application-clustering\/#safekit-farm-cluster\" title=\"Technical overview of SafeKit Farm Cluster architecture with network load balancing\">See SafeKit Farm Cluster: Network Load Balancing & Failover<\/a><\/td>\n<\/tr>\n<tr>\n<th scope=\"row\"><strong>Competitive Advantages<\/strong><\/th>\n<td>Comparison: SafeKit vs. Traditional High Availability (HA) Clusters<\/td>\n<td><a href=\"\/products\/high-availability-software-for-application-clustering\/#safekit-ha-comparison\" title=\"Detailed comparison of SafeKit software vs traditional hardware-based HA clusters\">See SafeKit vs. Traditional HA Cluster Comparison<\/a><\/td>\n<\/tr>\n<tr>\n<th scope=\"row\"><strong>Technical Resources<\/strong><\/th>\n<td>SafeKit High Availability: Documentation, Downloads &amp; Trial<\/td>\n<td><a href=\"\/products\/high-availability-software-for-application-clustering\/#safekit-ha-technical-resources\" title=\"Access SafeKit free trial, technical documentation, and high availability white papers\">See SafeKit HA Free Trial &amp; Technical Documentation<\/a><\/td>\n<\/tr>\n<tr>\n<th scope=\"row\"><strong>Pre-configured Solutions<\/strong><\/th>\n<td>SafeKit Application Module Library: Ready-to-Use HA Solutions<\/td>\n<td><a href=\"\/products\/high-availability-software-for-application-clustering\/#safekit-ha-application-modules\" title=\"Browse the library of pre-configured SafeKit modules for automated application failover\">See SafeKit High Availability Application Modules<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/article>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><div id=\"pg-81721-6\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-81721-6\" ><div id=\"pgc-81721-6-0\"  class=\"panel-grid-cell\" ><div id=\"panel-81721-6-0-0\" class=\"so-panel widget widget_sow-editor panel-first-child panel-last-child\" data-index=\"6\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<div data-post-id=\"71458\" class=\"insert-page insert-page-71458 \"><div id=\"pl-71458\"  class=\"panel-layout\" ><div id=\"pg-71458-0\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-71458-0\" ><div id=\"pgc-71458-0-0\"  class=\"panel-grid-cell panel-grid-cell-empty\" ><\/div><div id=\"pgc-71458-0-1\"  class=\"panel-grid-cell\" ><div id=\"panel-71458-0-1-0\" class=\"so-panel widget widget_sow-button panel-first-child panel-last-child\" data-index=\"0\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-button so-widget-sow-button-atom-22117c521b6b-71458\"\n\t\t\t\n\t\t><div class=\"ow-button-base ow-button-align-center\"\n>\n\t\t\t<a\n\t\t\t\t\thref=\"https:\/\/www.evidian.com\/products\/high-availability-software-for-application-clustering\/contact-us-for-safekit\/\"\n\t\t\t\t\tclass=\"sowb-button ow-icon-placement-left ow-button-hover\" target=\"_blank\" rel=\"noopener noreferrer\" \t>\n\t\t<span>\n\t\t\t\n\t\t\t\ud83e\uddd1 Contact us\t\t<\/span>\n\t\t\t<\/a>\n\t<\/div>\n<\/div><\/div><\/div><div id=\"pgc-71458-0-2\"  class=\"panel-grid-cell\" ><div id=\"panel-71458-0-2-0\" class=\"so-panel widget widget_sow-button panel-first-child panel-last-child\" data-index=\"1\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-button so-widget-sow-button-atom-22117c521b6b-71458\"\n\t\t\t\n\t\t><div class=\"ow-button-base ow-button-align-center\"\n>\n\t\t\t<a\n\t\t\t\t\thref=\"https:\/\/www.evidian.com\/products\/high-availability-software-for-application-clustering\/safekit-free-trial\/\"\n\t\t\t\t\tclass=\"sowb-button ow-icon-placement-left ow-button-hover\" target=\"_blank\" rel=\"noopener noreferrer\" \t>\n\t\t<span>\n\t\t\t\n\t\t\t\ud83c\udf81 SafeKit free trial\t\t<\/span>\n\t\t\t<\/a>\n\t<\/div>\n<\/div><\/div><\/div><div id=\"pgc-71458-0-3\"  class=\"panel-grid-cell\" ><div id=\"panel-71458-0-3-0\" class=\"so-panel widget widget_sow-button panel-first-child panel-last-child\" data-index=\"2\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-button so-widget-sow-button-atom-22117c521b6b-71458\"\n\t\t\t\n\t\t><div class=\"ow-button-base ow-button-align-center\"\n>\n\t\t\t<a\n\t\t\t\t\thref=\"https:\/\/training.my.evidian.com\/mod\/page\/view.php?id=712\"\n\t\t\t\t\tclass=\"sowb-button ow-icon-placement-left ow-button-hover\" target=\"_blank\" rel=\"noopener noreferrer\" \t>\n\t\t<span>\n\t\t\t\n\t\t\t\ud83c\udfc5 Free certification\t\t<\/span>\n\t\t\t<\/a>\n\t<\/div>\n<\/div><\/div><\/div><div id=\"pgc-71458-0-4\"  class=\"panel-grid-cell panel-grid-cell-mobile-last\" ><div id=\"panel-71458-0-4-0\" class=\"so-panel widget widget_sow-button panel-first-child panel-last-child\" data-index=\"3\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-button so-widget-sow-button-atom-22117c521b6b-71458\"\n\t\t\t\n\t\t><div class=\"ow-button-base ow-button-align-center\"\n>\n\t\t\t<a\n\t\t\t\t\thref=\"https:\/\/www.evidian.com\/products\/high-availability-software-for-application-clustering\/get-a-quote-safekit-en\/\"\n\t\t\t\t\tclass=\"sowb-button ow-icon-placement-left ow-button-hover\" target=\"_blank\" rel=\"noopener noreferrer\" \t>\n\t\t<span>\n\t\t\t\n\t\t\t\ud83d\udcb0 Perpetual license cost\t\t<\/span>\n\t\t\t<\/a>\n\t<\/div>\n<\/div><\/div><\/div><div id=\"pgc-71458-0-5\"  class=\"panel-grid-cell panel-grid-cell-empty\" ><\/div><\/div><\/div><\/div><\/div>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"High Availability for Siemens SIMATIC PCS 7: 2-Node SANless Cluster How SafeKit Implements SIMATIC PCS 7 Redundancy in Hyper-V?","protected":false},"author":3,"featured_media":0,"parent":4484,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-full-screen.php","meta":{"_acf_changed":false,"_lmt_disableupdate":"no","_lmt_disable":"","footnotes":""},"class_list":["post-81721","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>High Availability for Siemens SIMATIC PCS 7: 2-Node SANless Cluster - Evidian<\/title>\n<meta name=\"description\" content=\"Implement high availability for Siemens SIMATIC PCS 7 without a SAN. SafeKit HA provides synchronous replication, 2-node failover, and zero data loss.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.evidian.com\/products\/high-availability-software-for-application-clustering\/siemens-simatic-pcs-7-redundancy-high-availability-cluster-active-active\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"High Availability for Siemens SIMATIC PCS 7: 2-Node SANless Cluster\" \/>\n<meta property=\"og:description\" content=\"Implement high availability for Siemens SIMATIC PCS 7 without a SAN. SafeKit HA provides synchronous replication, 2-node failover, and zero data loss.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.evidian.com\/products\/high-availability-software-for-application-clustering\/siemens-simatic-pcs-7-redundancy-high-availability-cluster-active-active\/\" \/>\n<meta property=\"og:site_name\" content=\"Evidian\" \/>\n<meta property=\"article:modified_time\" content=\"2026-02-08T06:40:16+00:00\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"13 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"TechArticle\",\"@id\":\"https:\\\/\\\/www.evidian.com\\\/products\\\/high-availability-software-for-application-clustering\\\/siemens-simatic-pcs-7-redundancy-high-availability-cluster-active-active\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.evidian.com\\\/products\\\/high-availability-software-for-application-clustering\\\/siemens-simatic-pcs-7-redundancy-high-availability-cluster-active-active\\\/\"},\"author\":{\"name\":\"Bruno Rochat\",\"@id\":\"https:\\\/\\\/www.evidian.com\\\/#\\\/schema\\\/person\\\/dd99ee1867e3c45c0c0256b746d92d32\"},\"headline\":\"High Availability for Siemens SIMATIC PCS 7: 2-Node SANless Cluster\",\"datePublished\":\"2022-09-04T09:46:18+00:00\",\"dateModified\":\"2026-02-08T06:40:16+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.evidian.com\\\/products\\\/high-availability-software-for-application-clustering\\\/siemens-simatic-pcs-7-redundancy-high-availability-cluster-active-active\\\/\"},\"wordCount\":4352,\"publisher\":{\"@id\":\"https:\\\/\\\/www.evidian.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.evidian.com\\\/products\\\/high-availability-software-for-application-clustering\\\/siemens-simatic-pcs-7-redundancy-high-availability-cluster-active-active\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.evidian.com\\\/wp-content\\\/uploads\\\/2026\\\/01\\\/safekit-vm-repli-720-720.jpg\",\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.evidian.com\\\/products\\\/high-availability-software-for-application-clustering\\\/siemens-simatic-pcs-7-redundancy-high-availability-cluster-active-active\\\/\",\"url\":\"https:\\\/\\\/www.evidian.com\\\/products\\\/high-availability-software-for-application-clustering\\\/siemens-simatic-pcs-7-redundancy-high-availability-cluster-active-active\\\/\",\"name\":\"High Availability for Siemens SIMATIC PCS 7: 2-Node SANless Cluster - Evidian\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.evidian.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.evidian.com\\\/products\\\/high-availability-software-for-application-clustering\\\/siemens-simatic-pcs-7-redundancy-high-availability-cluster-active-active\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.evidian.com\\\/products\\\/high-availability-software-for-application-clustering\\\/siemens-simatic-pcs-7-redundancy-high-availability-cluster-active-active\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.evidian.com\\\/wp-content\\\/uploads\\\/2026\\\/01\\\/safekit-vm-repli-720-720.jpg\",\"datePublished\":\"2022-09-04T09:46:18+00:00\",\"dateModified\":\"2026-02-08T06:40:16+00:00\",\"description\":\"Implement high availability for Siemens SIMATIC PCS 7 without a SAN. SafeKit HA provides synchronous replication, 2-node failover, and zero data loss.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.evidian.com\\\/products\\\/high-availability-software-for-application-clustering\\\/siemens-simatic-pcs-7-redundancy-high-availability-cluster-active-active\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.evidian.com\\\/products\\\/high-availability-software-for-application-clustering\\\/siemens-simatic-pcs-7-redundancy-high-availability-cluster-active-active\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.evidian.com\\\/products\\\/high-availability-software-for-application-clustering\\\/siemens-simatic-pcs-7-redundancy-high-availability-cluster-active-active\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.evidian.com\\\/wp-content\\\/uploads\\\/2026\\\/01\\\/safekit-vm-repli-720-720.jpg\",\"contentUrl\":\"https:\\\/\\\/www.evidian.com\\\/wp-content\\\/uploads\\\/2026\\\/01\\\/safekit-vm-repli-720-720.jpg\",\"width\":720,\"height\":720},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.evidian.com\\\/products\\\/high-availability-software-for-application-clustering\\\/siemens-simatic-pcs-7-redundancy-high-availability-cluster-active-active\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Evidian\",\"item\":\"https:\\\/\\\/www.evidian.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Products\",\"item\":\"https:\\\/\\\/www.evidian.com\\\/products\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"SafeKit: All-in-One SANless High Availability &amp; Application Clustering Software\",\"item\":\"https:\\\/\\\/www.evidian.com\\\/products\\\/high-availability-software-for-application-clustering\\\/\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"High Availability for Siemens SIMATIC PCS 7: 2-Node SANless Cluster\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.evidian.com\\\/#website\",\"url\":\"https:\\\/\\\/www.evidian.com\\\/\",\"name\":\"Evidian\",\"description\":\"The European Leader in Unified Identity, Access Management, and Business Continuity\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.evidian.com\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.evidian.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.evidian.com\\\/#organization\",\"name\":\"Evidian\",\"alternateName\":\"Evidian\",\"url\":\"https:\\\/\\\/www.evidian.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.evidian.com\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.evidian.com\\\/wp-content\\\/uploads\\\/2024\\\/01\\\/evidian-new-blue-1.png\",\"contentUrl\":\"https:\\\/\\\/www.evidian.com\\\/wp-content\\\/uploads\\\/2024\\\/01\\\/evidian-new-blue-1.png\",\"width\":734,\"height\":200,\"caption\":\"Evidian\"},\"image\":{\"@id\":\"https:\\\/\\\/www.evidian.com\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.linkedin.com\\\/showcase\\\/eviden-cybersecurity\\\/\",\"https:\\\/\\\/www.youtube.com\\\/channel\\\/UCJKPuw2SDVNYUjZEJyLbIAA\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.evidian.com\\\/#\\\/schema\\\/person\\\/dd99ee1867e3c45c0c0256b746d92d32\",\"name\":\"Bruno Rochat\",\"pronouns\":\"he\\\/him\",\"description\":\"Bruno Rochat is the SafeKit Product Line Manager at Evidian (Atos Cybersecurity) and a leading expert in high availability and fault-tolerant systems. With over 30 years of experience in the field, he oversees the R&amp;D, marketing, and international business development of the SafeKit software portfolio. Bruno holds a PhD in Fault Tolerance from the University of Rennes 1 \\\/ INRIA, where his research focused on the construction of reliable services in distributed systems. His professional background includes nearly a decade as a Research Engineer at INRIA, where he contributed to the design of fault-tolerant machines, reliable micro-kernels, and shared virtual memory systems. He has authored numerous peer-reviewed publications on reliable object-based systems and distributed operating systems. Today, he specializes in clustering, data replication, and disaster recovery solutions for Windows and Linux environments.\",\"sameAs\":[\"https:\\\/\\\/www.researchgate.net\\\/profile\\\/Bruno-Rochat\",\"https:\\\/\\\/www.linkedin.com\\\/in\\\/brunorochat\\\/\",\"https:\\\/\\\/www.youtube.com\\\/@EvidianSafeKit\"],\"honorificPrefix\":\"Dr\",\"honorificSuffix\":\"PhD\",\"birthDate\":\"1965-01-25\",\"gender\":\"male\",\"knowsAbout\":[\"High Availability\",\"Disaster Recovery\",\"Real-Time Replication\",\"Automatic Failover\",\"Network Load Balancing\",\"Virtual IP address\"],\"knowsLanguage\":[\"French\",\"English\"],\"jobTitle\":\"SafeKit Product Line Manager\",\"worksFor\":\"Evidian\",\"url\":\"https:\\\/\\\/www.evidian.com\\\/author\\\/bruno-rochat\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"High Availability for Siemens SIMATIC PCS 7: 2-Node SANless Cluster - Evidian","description":"Implement high availability for Siemens SIMATIC PCS 7 without a SAN. SafeKit HA provides synchronous replication, 2-node failover, and zero data loss.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.evidian.com\/products\/high-availability-software-for-application-clustering\/siemens-simatic-pcs-7-redundancy-high-availability-cluster-active-active\/","og_locale":"en_US","og_type":"article","og_title":"High Availability for Siemens SIMATIC PCS 7: 2-Node SANless Cluster","og_description":"Implement high availability for Siemens SIMATIC PCS 7 without a SAN. SafeKit HA provides synchronous replication, 2-node failover, and zero data loss.","og_url":"https:\/\/www.evidian.com\/products\/high-availability-software-for-application-clustering\/siemens-simatic-pcs-7-redundancy-high-availability-cluster-active-active\/","og_site_name":"Evidian","article_modified_time":"2026-02-08T06:40:16+00:00","twitter_misc":{"Est. reading time":"13 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"TechArticle","@id":"https:\/\/www.evidian.com\/products\/high-availability-software-for-application-clustering\/siemens-simatic-pcs-7-redundancy-high-availability-cluster-active-active\/#article","isPartOf":{"@id":"https:\/\/www.evidian.com\/products\/high-availability-software-for-application-clustering\/siemens-simatic-pcs-7-redundancy-high-availability-cluster-active-active\/"},"author":{"name":"Bruno Rochat","@id":"https:\/\/www.evidian.com\/#\/schema\/person\/dd99ee1867e3c45c0c0256b746d92d32"},"headline":"High Availability for Siemens SIMATIC PCS 7: 2-Node SANless Cluster","datePublished":"2022-09-04T09:46:18+00:00","dateModified":"2026-02-08T06:40:16+00:00","mainEntityOfPage":{"@id":"https:\/\/www.evidian.com\/products\/high-availability-software-for-application-clustering\/siemens-simatic-pcs-7-redundancy-high-availability-cluster-active-active\/"},"wordCount":4352,"publisher":{"@id":"https:\/\/www.evidian.com\/#organization"},"image":{"@id":"https:\/\/www.evidian.com\/products\/high-availability-software-for-application-clustering\/siemens-simatic-pcs-7-redundancy-high-availability-cluster-active-active\/#primaryimage"},"thumbnailUrl":"https:\/\/www.evidian.com\/wp-content\/uploads\/2026\/01\/safekit-vm-repli-720-720.jpg","inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/www.evidian.com\/products\/high-availability-software-for-application-clustering\/siemens-simatic-pcs-7-redundancy-high-availability-cluster-active-active\/","url":"https:\/\/www.evidian.com\/products\/high-availability-software-for-application-clustering\/siemens-simatic-pcs-7-redundancy-high-availability-cluster-active-active\/","name":"High Availability for Siemens SIMATIC PCS 7: 2-Node SANless Cluster - Evidian","isPartOf":{"@id":"https:\/\/www.evidian.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.evidian.com\/products\/high-availability-software-for-application-clustering\/siemens-simatic-pcs-7-redundancy-high-availability-cluster-active-active\/#primaryimage"},"image":{"@id":"https:\/\/www.evidian.com\/products\/high-availability-software-for-application-clustering\/siemens-simatic-pcs-7-redundancy-high-availability-cluster-active-active\/#primaryimage"},"thumbnailUrl":"https:\/\/www.evidian.com\/wp-content\/uploads\/2026\/01\/safekit-vm-repli-720-720.jpg","datePublished":"2022-09-04T09:46:18+00:00","dateModified":"2026-02-08T06:40:16+00:00","description":"Implement high availability for Siemens SIMATIC PCS 7 without a SAN. SafeKit HA provides synchronous replication, 2-node failover, and zero data loss.","breadcrumb":{"@id":"https:\/\/www.evidian.com\/products\/high-availability-software-for-application-clustering\/siemens-simatic-pcs-7-redundancy-high-availability-cluster-active-active\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.evidian.com\/products\/high-availability-software-for-application-clustering\/siemens-simatic-pcs-7-redundancy-high-availability-cluster-active-active\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.evidian.com\/products\/high-availability-software-for-application-clustering\/siemens-simatic-pcs-7-redundancy-high-availability-cluster-active-active\/#primaryimage","url":"https:\/\/www.evidian.com\/wp-content\/uploads\/2026\/01\/safekit-vm-repli-720-720.jpg","contentUrl":"https:\/\/www.evidian.com\/wp-content\/uploads\/2026\/01\/safekit-vm-repli-720-720.jpg","width":720,"height":720},{"@type":"BreadcrumbList","@id":"https:\/\/www.evidian.com\/products\/high-availability-software-for-application-clustering\/siemens-simatic-pcs-7-redundancy-high-availability-cluster-active-active\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Evidian","item":"https:\/\/www.evidian.com\/"},{"@type":"ListItem","position":2,"name":"Products","item":"https:\/\/www.evidian.com\/products\/"},{"@type":"ListItem","position":3,"name":"SafeKit: All-in-One SANless High Availability &amp; Application Clustering Software","item":"https:\/\/www.evidian.com\/products\/high-availability-software-for-application-clustering\/"},{"@type":"ListItem","position":4,"name":"High Availability for Siemens SIMATIC PCS 7: 2-Node SANless Cluster"}]},{"@type":"WebSite","@id":"https:\/\/www.evidian.com\/#website","url":"https:\/\/www.evidian.com\/","name":"Evidian","description":"The European Leader in Unified Identity, Access Management, and Business Continuity","publisher":{"@id":"https:\/\/www.evidian.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.evidian.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.evidian.com\/#organization","name":"Evidian","alternateName":"Evidian","url":"https:\/\/www.evidian.com\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.evidian.com\/#\/schema\/logo\/image\/","url":"https:\/\/www.evidian.com\/wp-content\/uploads\/2024\/01\/evidian-new-blue-1.png","contentUrl":"https:\/\/www.evidian.com\/wp-content\/uploads\/2024\/01\/evidian-new-blue-1.png","width":734,"height":200,"caption":"Evidian"},"image":{"@id":"https:\/\/www.evidian.com\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.linkedin.com\/showcase\/eviden-cybersecurity\/","https:\/\/www.youtube.com\/channel\/UCJKPuw2SDVNYUjZEJyLbIAA"]},{"@type":"Person","@id":"https:\/\/www.evidian.com\/#\/schema\/person\/dd99ee1867e3c45c0c0256b746d92d32","name":"Bruno Rochat","pronouns":"he\/him","description":"Bruno Rochat is the SafeKit Product Line Manager at Evidian (Atos Cybersecurity) and a leading expert in high availability and fault-tolerant systems. With over 30 years of experience in the field, he oversees the R&amp;D, marketing, and international business development of the SafeKit software portfolio. Bruno holds a PhD in Fault Tolerance from the University of Rennes 1 \/ INRIA, where his research focused on the construction of reliable services in distributed systems. His professional background includes nearly a decade as a Research Engineer at INRIA, where he contributed to the design of fault-tolerant machines, reliable micro-kernels, and shared virtual memory systems. He has authored numerous peer-reviewed publications on reliable object-based systems and distributed operating systems. Today, he specializes in clustering, data replication, and disaster recovery solutions for Windows and Linux environments.","sameAs":["https:\/\/www.researchgate.net\/profile\/Bruno-Rochat","https:\/\/www.linkedin.com\/in\/brunorochat\/","https:\/\/www.youtube.com\/@EvidianSafeKit"],"honorificPrefix":"Dr","honorificSuffix":"PhD","birthDate":"1965-01-25","gender":"male","knowsAbout":["High Availability","Disaster Recovery","Real-Time Replication","Automatic Failover","Network Load Balancing","Virtual IP address"],"knowsLanguage":["French","English"],"jobTitle":"SafeKit Product Line Manager","worksFor":"Evidian","url":"https:\/\/www.evidian.com\/author\/bruno-rochat\/"}]}},"_links":{"self":[{"href":"https:\/\/www.evidian.com\/wp-json\/wp\/v2\/pages\/81721","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.evidian.com\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.evidian.com\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.evidian.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.evidian.com\/wp-json\/wp\/v2\/comments?post=81721"}],"version-history":[{"count":0,"href":"https:\/\/www.evidian.com\/wp-json\/wp\/v2\/pages\/81721\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/www.evidian.com\/wp-json\/wp\/v2\/pages\/4484"}],"wp:attachment":[{"href":"https:\/\/www.evidian.com\/wp-json\/wp\/v2\/media?parent=81721"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}