{"id":8719,"date":"2014-03-31T10:03:32","date_gmt":"2014-03-31T08:03:32","guid":{"rendered":"\/?page_id=8719"},"modified":"2026-04-22T09:50:30","modified_gmt":"2026-04-22T07:50:30","slug":"heartbeat-failover-quorum-cluster","status":"publish","type":"page","link":"https:\/\/safekit.evidian.com\/fr\/produits\/haute-disponibilite-logiciel-clustering-application\/heartbeat-failover-quorum-cluster\/","title":{"rendered":"Battement de c\u0153ur, basculement et quorum dans les clusters Windows et Linux"},"content":{"rendered":"<div id=\"pl-8719\"  class=\"panel-layout\" ><div id=\"pg-8719-0\"  class=\"panel-grid panel-has-style\" ><div class=\"so-rounded panel-row-style panel-row-style-for-8719-0\" ><div id=\"pgc-8719-0-0\"  class=\"panel-grid-cell\" ><div id=\"panel-8719-0-0-0\" 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-8719-0-0-0\" ><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; font-size: 38px;\">Battement de c\u0153ur, basculement et quorum dans les clusters Windows et Linux<\/h1>\n<h2 style=\"text-align: left; color: white; font-size: 26px;\">SafeKit propose un cluster sans SAN avec un v\u00e9rificateur de split-brain simplifi\u00e9<\/h2>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><\/div><div id=\"pg-8719-1\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-8719-1\" ><div id=\"pgc-8719-1-0\"  class=\"panel-grid-cell\" ><div id=\"panel-8719-1-0-0\" 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=\"71459\" class=\"insert-page insert-page-71459 \"><div id=\"pl-71459\"  class=\"panel-layout\" ><div id=\"pg-71459-0\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-71459-0\" ><div id=\"pgc-71459-0-0\"  class=\"panel-grid-cell panel-grid-cell-empty\" ><\/div><div id=\"pgc-71459-0-1\"  class=\"panel-grid-cell\" ><div id=\"panel-71459-0-1-0\" 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-71459\"\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=\"\/fr\/produits\/haute-disponibilite-logiciel-clustering-application\/contactez-nous-a-propos-de-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 Nous contacter\t\t<\/span>\n\t\t\t<\/a>\n\t<\/div>\n<\/div><\/div><\/div><div id=\"pgc-71459-0-2\"  class=\"panel-grid-cell\" ><div id=\"panel-71459-0-2-0\" 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-71459\"\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:\/\/safekit.evidian.com\/fr\/produits\/haute-disponibilite-logiciel-clustering-application\/essai-gratuit-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\ud83c\udf81 Essai gratuit de SafeKit\t\t<\/span>\n\t\t\t<\/a>\n\t<\/div>\n<\/div><\/div><\/div><div id=\"pgc-71459-0-3\"  class=\"panel-grid-cell\" ><div id=\"panel-71459-0-3-0\" 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-71459\"\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 Certification gratuite\t\t<\/span>\n\t\t\t<\/a>\n\t<\/div>\n<\/div><\/div><\/div><div id=\"pgc-71459-0-4\"  class=\"panel-grid-cell panel-grid-cell-mobile-last\" ><div id=\"panel-71459-0-4-0\" 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-71459\"\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=\"\/fr\/produits\/haute-disponibilite-logiciel-clustering-application\/obtenez-un-prix\/\"\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 Prix licence perp\u00e9tuelle\t\t<\/span>\n\t\t\t<\/a>\n\t<\/div>\n<\/div><\/div><\/div><div id=\"pgc-71459-0-5\"  class=\"panel-grid-cell panel-grid-cell-empty\" ><\/div><\/div><\/div><\/div><\/div>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><div id=\"pg-8719-2\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-8719-2\" ><div id=\"pgc-8719-2-0\"  class=\"panel-grid-cell\" ><div id=\"panel-8719-2-0-0\" 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=\"232469\" class=\"insert-page insert-page-232469 \"><div id=\"pl-232469\"  class=\"panel-layout\" ><div id=\"pg-232469-0\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-232469-0\" ><div id=\"pgc-232469-0-0\"  class=\"panel-grid-cell\" ><div id=\"panel-232469-0-0-0\" 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=\"isolation\"><\/a>Quels sont les diff\u00e9rents sc\u00e9narios en cas d'isolement r\u00e9seau dans un cluster ?<\/h2>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><div id=\"pg-232469-1\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-232469-1\" ><div id=\"pgc-232469-1-0\"  class=\"panel-grid-cell\" ><div id=\"panel-232469-1-0-0\" class=\"so-panel widget widget_sow-editor panel-first-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<h3 style=\"text-align: center;\">Un seul r\u00e9seau<\/h3>\n<\/div>\n<\/div><\/div><div id=\"panel-232469-1-0-1\" class=\"so-panel widget widget_sow-hero\" data-index=\"2\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-hero so-widget-sow-hero-default-03fb85345dee-232469 so-widget-fittext-wrapper\"\n\t\t\t data-fit-text-compressor=\"0.85\"\n\t\t>\t\t\t\t<div class=\"sow-slider-base\" style=\"display: none\" tabindex=\"0\">\n\t\t\t\t\t<ul\n\t\t\t\t\tclass=\"sow-slider-images\"\n\t\t\t\t\tdata-settings=\"{&quot;pagination&quot;:true,&quot;speed&quot;:500,&quot;timeout&quot;:2000,&quot;paused&quot;:true,&quot;pause_on_hover&quot;:false,&quot;swipe&quot;:true,&quot;nav_always_show_desktop&quot;:true,&quot;nav_always_show_mobile&quot;:true,&quot;breakpoint&quot;:&quot;780px&quot;,&quot;unmute&quot;:false,&quot;anchor&quot;:null}\"\n\t\t\t\t\t\t\t\t\t\tdata-anchor-id=\"\"\n\t\t\t\t>\t\t<li class=\"sow-slider-image\" style=\"visibility: visible;\" >\n\t\t\t\t\t<div class=\"sow-slider-image-container\">\n\t\t\t<div class=\"sow-slider-image-wrapper\">\n\t\t\t\t<p style=\"text-align: center\"><img decoding=\"async\" src=\"https:\/\/safekit.evidian.com\/wp-content\/uploads\/2023\/02\/safekit-prim-second-300.png\" width=\"300\" height=\"169\" alt=\"SafeKit primary secondary\" \/><\/p>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<\/li>\n\t\t\t\t<li class=\"sow-slider-image\" style=\"visibility: hidden;\" >\n\t\t\t\t\t<div class=\"sow-slider-image-container\">\n\t\t\t<div class=\"sow-slider-image-wrapper\">\n\t\t\t\t<p style=\"text-align: center\"><img decoding=\"async\" src=\"https:\/\/safekit.evidian.com\/wp-content\/uploads\/2023\/02\/safekit-alone-alone-300.png\" width=\"300\" height=\"169\" alt=\"SafeKit alone alone\" \/><\/p>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<\/li>\n\t\t<\/ul>\t\t\t\t<ol class=\"sow-slider-pagination\">\n\t\t\t\t\t\t\t\t\t\t\t<li><a href=\"#\" data-goto=\"0\" aria-label=\"Display slide 1\"><\/a><\/li>\n\t\t\t\t\t\t\t\t\t\t\t<li><a href=\"#\" data-goto=\"1\" aria-label=\"Display slide 2\"><\/a><\/li>\n\t\t\t\t\t\t\t\t\t<\/ol>\n\n\t\t\t\t<div class=\"sow-slide-nav sow-slide-nav-next\">\n\t\t\t\t\t<a href=\"#\" data-goto=\"next\" aria-label=\"Next slide\" data-action=\"next\">\n\t\t\t\t\t\t<em class=\"sow-sld-icon-thick-right\"><\/em>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\n\t\t\t\t<div class=\"sow-slide-nav sow-slide-nav-prev\">\n\t\t\t\t\t<a href=\"#\" data-goto=\"previous\" aria-label=\"Previous slide\" data-action=\"prev\">\n\t\t\t\t\t\t<em class=\"sow-sld-icon-thick-left\"><\/em>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div><\/div><\/div><div id=\"panel-232469-1-0-2\" class=\"so-panel widget widget_sow-editor 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<p>Lorsqu'il y a un isolement r\u00e9seau, le comportement par d\u00e9faut est\u00a0:<\/p>\n<ul>\n<li>comme les heartbeats sont perdus pour chaque n\u0153ud, chaque n\u0153ud passe en ALONE et ex\u00e9cute l'application avec son adresse IP virtuelle (double ex\u00e9cution de l'application modifiant ses donn\u00e9es locales),<\/li>\n<li>lorsque l'isolement est r\u00e9par\u00e9, un n\u0153ud ALONE est oblig\u00e9 de s'arr\u00eater et de resynchroniser ses donn\u00e9es depuis l'autre n\u0153ud,<\/li>\n<li>\u00e0 la fin, le cluster est PRIM-SECOND (ou SECOND-PRIM selon la d\u00e9tection d'adresse IP virtuelle en double faite par Windows).<\/li>\n<\/ul>\n<\/div>\n<\/div><\/div><\/div><div id=\"pgc-232469-1-1\"  class=\"panel-grid-cell\" ><div id=\"panel-232469-1-1-0\" class=\"so-panel widget widget_sow-editor panel-first-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<h3 style=\"text-align: center;\">Deux r\u00e9seaux avec un r\u00e9seau de r\u00e9plication d\u00e9di\u00e9<\/h3>\n<\/div>\n<\/div><\/div><div id=\"panel-232469-1-1-1\" class=\"so-panel widget widget_sow-hero\" data-index=\"5\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-hero so-widget-sow-hero-default-03fb85345dee-232469 so-widget-fittext-wrapper\"\n\t\t\t data-fit-text-compressor=\"0.85\"\n\t\t>\t\t\t\t<div class=\"sow-slider-base\" style=\"display: none\" tabindex=\"0\">\n\t\t\t\t\t<ul\n\t\t\t\t\tclass=\"sow-slider-images\"\n\t\t\t\t\tdata-settings=\"{&quot;pagination&quot;:true,&quot;speed&quot;:500,&quot;timeout&quot;:2000,&quot;paused&quot;:true,&quot;pause_on_hover&quot;:false,&quot;swipe&quot;:true,&quot;nav_always_show_desktop&quot;:true,&quot;nav_always_show_mobile&quot;:true,&quot;breakpoint&quot;:&quot;780px&quot;,&quot;unmute&quot;:false,&quot;anchor&quot;:null}\"\n\t\t\t\t\t\t\t\t\t\tdata-anchor-id=\"\"\n\t\t\t\t>\t\t<li class=\"sow-slider-image\" style=\"visibility: visible;\" >\n\t\t\t\t\t<div class=\"sow-slider-image-container\">\n\t\t\t<div class=\"sow-slider-image-wrapper\">\n\t\t\t\t<p style=\"text-align: center\"><img decoding=\"async\" src=\"https:\/\/safekit.evidian.com\/wp-content\/uploads\/2023\/02\/safekit-prim-second-300.png\" width=\"300\" height=\"169\" alt=\"SafeKit primary secondary\" \/><\/p>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<\/li>\n\t\t\t\t<li class=\"sow-slider-image\" style=\"visibility: hidden;\" >\n\t\t\t\t\t<div class=\"sow-slider-image-container\">\n\t\t\t<div class=\"sow-slider-image-wrapper\">\n\t\t\t\t<p style=\"text-align: center\"><img decoding=\"async\" src=\"https:\/\/safekit.evidian.com\/wp-content\/uploads\/2023\/02\/safekit-prim-second-300.png\" width=\"300\" height=\"169\" alt=\"SafeKit failover\" \/><\/p>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<\/li>\n\t\t<\/ul>\t\t\t\t<ol class=\"sow-slider-pagination\">\n\t\t\t\t\t\t\t\t\t\t\t<li><a href=\"#\" data-goto=\"0\" aria-label=\"Display slide 1\"><\/a><\/li>\n\t\t\t\t\t\t\t\t\t\t\t<li><a href=\"#\" data-goto=\"1\" aria-label=\"Display slide 2\"><\/a><\/li>\n\t\t\t\t\t\t\t\t\t<\/ol>\n\n\t\t\t\t<div class=\"sow-slide-nav sow-slide-nav-next\">\n\t\t\t\t\t<a href=\"#\" data-goto=\"next\" aria-label=\"Next slide\" data-action=\"next\">\n\t\t\t\t\t\t<em class=\"sow-sld-icon-thick-right\"><\/em>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\n\t\t\t\t<div class=\"sow-slide-nav sow-slide-nav-prev\">\n\t\t\t\t\t<a href=\"#\" data-goto=\"previous\" aria-label=\"Previous slide\" data-action=\"prev\">\n\t\t\t\t\t\t<em class=\"sow-sld-icon-thick-left\"><\/em>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div><\/div><\/div><div id=\"panel-232469-1-1-2\" 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>Lorsqu'il y a un isolement r\u00e9seau, le comportement avec un r\u00e9seau de r\u00e9plication d\u00e9di\u00e9 est\u00a0:<\/p>\n<ul>\n<li>un r\u00e9seau de r\u00e9plication d\u00e9di\u00e9 est impl\u00e9ment\u00e9 sur un r\u00e9seau priv\u00e9,<\/li>\n<li>les heartbeats sur le r\u00e9seau de production sont perdus (r\u00e9seau isol\u00e9),<\/li>\n<li>les heartbeats sur le r\u00e9seau de r\u00e9plication fonctionnent (r\u00e9seau non isol\u00e9),<\/li>\n<li>le cluster reste \u00e0 l'\u00e9tat PRIM\/SECOND.<\/li>\n<\/ul>\n<\/div>\n<\/div><\/div><\/div><div id=\"pgc-232469-1-2\"  class=\"panel-grid-cell\" ><div id=\"panel-232469-1-2-0\" class=\"so-panel widget widget_sow-editor panel-first-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<h3 style=\"text-align: center;\">Un seul r\u00e9seau et un checker split-brain<\/h3>\n<\/div>\n<\/div><\/div><div id=\"panel-232469-1-2-1\" class=\"so-panel widget widget_sow-hero\" data-index=\"8\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-hero so-widget-sow-hero-default-03fb85345dee-232469 so-widget-fittext-wrapper\"\n\t\t\t data-fit-text-compressor=\"0.85\"\n\t\t>\t\t\t\t<div class=\"sow-slider-base\" style=\"display: none\" tabindex=\"0\">\n\t\t\t\t\t<ul\n\t\t\t\t\tclass=\"sow-slider-images\"\n\t\t\t\t\tdata-settings=\"{&quot;pagination&quot;:true,&quot;speed&quot;:500,&quot;timeout&quot;:2000,&quot;paused&quot;:true,&quot;pause_on_hover&quot;:false,&quot;swipe&quot;:true,&quot;nav_always_show_desktop&quot;:true,&quot;nav_always_show_mobile&quot;:true,&quot;breakpoint&quot;:&quot;780px&quot;,&quot;unmute&quot;:false,&quot;anchor&quot;:null}\"\n\t\t\t\t\t\t\t\t\t\tdata-anchor-id=\"\"\n\t\t\t\t>\t\t<li class=\"sow-slider-image\" style=\"visibility: visible;\" >\n\t\t\t\t\t<div class=\"sow-slider-image-container\">\n\t\t\t<div class=\"sow-slider-image-wrapper\">\n\t\t\t\t<p style=\"text-align: center\"><img decoding=\"async\" src=\"https:\/\/safekit.evidian.com\/wp-content\/uploads\/2023\/02\/safekit-prim-second-300.png\" width=\"300\" height=\"169\" alt=\"SafeKit primary secondary\" \/><\/p>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<\/li>\n\t\t\t\t<li class=\"sow-slider-image\" style=\"visibility: hidden;\" >\n\t\t\t\t\t<div class=\"sow-slider-image-container\">\n\t\t\t<div class=\"sow-slider-image-wrapper\">\n\t\t\t\t<p style=\"text-align: center\"><img decoding=\"async\" src=\"https:\/\/safekit.evidian.com\/wp-content\/uploads\/2023\/02\/safekit-alone-wait-300.png\" width=\"300\" height=\"169\" alt=\"SafeKit alone wait\" \/><\/p>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<\/li>\n\t\t<\/ul>\t\t\t\t<ol class=\"sow-slider-pagination\">\n\t\t\t\t\t\t\t\t\t\t\t<li><a href=\"#\" data-goto=\"0\" aria-label=\"Display slide 1\"><\/a><\/li>\n\t\t\t\t\t\t\t\t\t\t\t<li><a href=\"#\" data-goto=\"1\" aria-label=\"Display slide 2\"><\/a><\/li>\n\t\t\t\t\t\t\t\t\t<\/ol>\n\n\t\t\t\t<div class=\"sow-slide-nav sow-slide-nav-next\">\n\t\t\t\t\t<a href=\"#\" data-goto=\"next\" aria-label=\"Next slide\" data-action=\"next\">\n\t\t\t\t\t\t<em class=\"sow-sld-icon-thick-right\"><\/em>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\n\t\t\t\t<div class=\"sow-slide-nav sow-slide-nav-prev\">\n\t\t\t\t\t<a href=\"#\" data-goto=\"previous\" aria-label=\"Previous slide\" data-action=\"prev\">\n\t\t\t\t\t\t<em class=\"sow-sld-icon-thick-left\"><\/em>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div><\/div><\/div><div id=\"panel-232469-1-2-2\" class=\"so-panel widget widget_sow-editor 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<p>Lorsqu'il y a un isolement du r\u00e9seau, le comportement avec un split-brain checker est\u00a0:<\/p>\n<ul>\n<li>un split-brain checker a \u00e9t\u00e9 configur\u00e9 avec l'adresse IP d'un t\u00e9moin (typiquement un routeur),<\/li>\n<li>le split-brain agit lorsqu'un serveur passe de PRIM \u00e0 ALONE ou de SECOND \u00e0 ALONE,<\/li>\n<li>en cas d'isolement du r\u00e9seau, avant de passer en ALONE, les deux n\u0153uds testent l'adresse IP,<\/li>\n<li>le n\u0153ud qui peut acc\u00e9der \u00e0 l'adresse\u00a0IP passe \u00e0 ALONE, l'autre passe \u00e0 WAIT,<\/li>\n<li>lorsque l'isolement est r\u00e9par\u00e9, le n\u0153ud WAIT resynchronise ses donn\u00e9es et devient SECOND.<\/li>\n<\/ul>\n<p>Remarque : Si le t\u00e9moin est en panne ou d\u00e9connect\u00e9, les deux n\u0153uds passent \u00e0 WAIT et l'application n'est plus en cours d'ex\u00e9cution. C'est pourquoi vous devez choisir un t\u00e9moin robuste comme un routeur.<\/p>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><div id=\"pg-8719-3\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-8719-3\" ><div id=\"pgc-8719-3-0\"  class=\"panel-grid-cell\" ><div id=\"panel-8719-3-0-0\" 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<h2><a name=\"step1\"><\/a>Comment fonctionnent les heartbeats et le basculement dans un cluster Windows ou Linux\u00a0?<\/h2>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><div id=\"pg-8719-4\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-8719-4\" ><div id=\"pgc-8719-4-0\"  class=\"panel-grid-cell\" ><div id=\"panel-8719-4-0-0\" 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<h3>Qu'est-ce qu'un heartbeat\u00a0?<\/h3>\n<p>Le m\u00e9canisme de base pour synchroniser deux serveurs et d\u00e9tecter les pannes de serveur est le <strong>heartbeat<\/strong>, qui est un flux de donn\u00e9es de surveillance sur un r\u00e9seau partag\u00e9 par une paire de serveurs.<\/p>\n<p>Le logiciel SafeKit supporte autant de heartbeats qu'il y a de r\u00e9seaux partag\u00e9s par les deux serveurs.<\/p>\n<p>Le m\u00e9canisme de heartbeat est utilis\u00e9 pour impl\u00e9menter des clusters Windows et Linux. Il est int\u00e9gr\u00e9 au cluster miroir de SafeKit avec r\u00e9plication de fichiers en temps r\u00e9el et basculement.<\/p>\n<\/div>\n<\/div><\/div><\/div><div id=\"pgc-8719-4-1\"  class=\"panel-grid-cell\" ><div id=\"panel-8719-4-1-0\" 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<h3>Heartbeats de SafeKit<\/h3>\n<p>En fonctionnement normal, les deux serveurs \u00e9changent leurs \u00e9tats (PRIM, SECOND, les \u00e9tats des ressources) via les canaux de heartbeat et synchronisent leurs proc\u00e9dures de d\u00e9marrage et d'arr\u00eat des applications.<\/p>\n<p>En particulier, en cas de basculement programm\u00e9, le script d'arr\u00eat qui stoppe l'application est d'abord ex\u00e9cut\u00e9 sur le serveur primaire, avant d'ex\u00e9cuter le script de d\u00e9marrage sur le serveur secondaire. Ainsi, les donn\u00e9es r\u00e9pliqu\u00e9es sur le serveur secondaire sont dans un \u00e9tat s\u00fbr correspondant \u00e0 un arr\u00eat propre de l'application.<\/p>\n<\/div>\n<\/div><\/div><\/div><div id=\"pgc-8719-4-2\"  class=\"panel-grid-cell\" ><div id=\"panel-8719-4-2-0\" 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<h3>Perte de tous les heartbeats<\/h3>\n<p>Lorsque tous les heartbeats sont perdus sur un serveur, ce serveur consid\u00e8re que l'autre serveur est en panne et passe \u00e0 l'\u00e9tat ALONE.<\/p>\n<p>Si c'est le serveur SECOND qui passe \u00e0 l'\u00e9tat ALONE, alors il y a basculement de l'application avec red\u00e9marrage de l'application sur le serveur secondaire.<\/p>\n<p>Bien que non obligatoire, il est pr\u00e9f\u00e9rable d'avoir deux canaux de heartbeat sur deux r\u00e9seaux diff\u00e9rents pour synchroniser les deux serveurs afin de s\u00e9parer le cas de la panne r\u00e9seau de celui de la panne serveur.<\/p>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><div id=\"pg-8719-5\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-8719-5\" ><div id=\"pgc-8719-5-0\"  class=\"panel-grid-cell\" ><div id=\"panel-8719-5-0-0\" 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<h2><a name=\"step2\"><\/a>Probl\u00e8me de split brain et quorum lorsque les serveurs sont dans deux salles informatiques distantes<\/h2>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><div id=\"pg-8719-6\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-8719-6\" ><div id=\"pgc-8719-6-0\"  class=\"panel-grid-cell\" ><div id=\"panel-8719-6-0-0\" 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<p style=\"text-align: center;\"><img decoding=\"async\" src=\"https:\/\/safekit.evidian.com\/wp-content\/uploads\/2023\/02\/quorum-with-remote-sites.png\" width=\"200\" alt=\"Heartbeat, failover et quorum dans un cluster Windows ou Linux\" \/><\/p>\n<\/div>\n<\/div><\/div><\/div><div id=\"pgc-8719-6-1\"  class=\"panel-grid-cell\" ><div id=\"panel-8719-6-1-0\" 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<h3>Salles informatiques distantes<\/h3>\n<p>Un cluster de haute disponibilit\u00e9 s\u00e9curisant une application critique peut \u00eatre mis en place avec deux serveurs dans deux salles informatiques g\u00e9ographiquement distantes.<\/p>\n<p>Ainsi, la solution prend en charge le sinistre d'une salle compl\u00e8te.<\/p>\n<\/div>\n<\/div><\/div><\/div><div id=\"pgc-8719-6-2\"  class=\"panel-grid-cell\" ><div id=\"panel-8719-6-2-0\" 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<h3>Split brain<\/h3>\n<p>En cas d'isolation r\u00e9seau entre les deux salles informatiques, tous les heartbeats sont perdus et le probl\u00e8me du split brain se pose.<\/p>\n<p>Les deux serveurs d\u00e9marrent l'application critique.<\/p>\n<\/div>\n<\/div><\/div><\/div><div id=\"pgc-8719-6-3\"  class=\"panel-grid-cell\" ><div id=\"panel-8719-6-3-0\" 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<h3>Complexit\u00e9 des solutions<\/h3>\n<p>Le plus souvent, pour r\u00e9soudre le split brain, le quorum est impl\u00e9ment\u00e9 avec un troisi\u00e8me serveur de quorum ou un disque de quorum sp\u00e9cial pour \u00e9viter les doubles ma\u00eetres.<\/p>\n<p>Malheureusement, ces nouveaux dispositifs de quorum ajoutent des co\u00fbts et de la complexit\u00e9 \u00e0 l'architecture de clustering globale.<\/p>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><div id=\"pg-8719-7\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-8719-7\" ><div id=\"pgc-8719-7-0\"  class=\"panel-grid-cell\" ><div id=\"panel-8719-7-0-0\" class=\"so-panel widget widget_sow-editor panel-first-child panel-last-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<h2><a name=\"step3\"><\/a>Quorum simple avec le split brain checker de SafeKit<\/h2>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><div id=\"pg-8719-8\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-8719-8\" ><div id=\"pgc-8719-8-0\"  class=\"panel-grid-cell\" ><div id=\"panel-8719-8-0-0\" class=\"so-panel widget widget_sow-editor panel-first-child 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<h3>Split brain checker de SafeKit<\/h3>\n<p>Avec le logiciel de haute disponibilit\u00e9 SafeKit, le quorum au sein d'un cluster Windows ou Linux ne n\u00e9cessite pas de troisi\u00e8me serveur de quorum ni de disque quorum. Un <a href=\"https:\/\/safekit.evidian.com\/fr\/produits\/haute-disponibilite-logiciel-clustering-application\/guide-utilisateur-safekit-82\/#check_splitbrain\" target=\"_blank\" rel=\"noopener\">split brain checker simple<\/a> est suffisant pour \u00e9viter la double ex\u00e9cution d'une application.<\/p>\n<p>En cas de perte de tous les heartbeats entre les serveurs, le split brain checker s\u00e9lectionne un seul serveur pour devenir le serveur primaire. L'autre serveur passe \u00e0 l'\u00e9tat WAIT jusqu'\u00e0 ce qu'il re\u00e7oive \u00e0 nouveau les heartbeats. Il repasse alors en secondaire apr\u00e8s avoir resynchronis\u00e9 les donn\u00e9es r\u00e9pliqu\u00e9es du serveur primaire.<\/p>\n<\/div>\n<\/div><\/div><\/div><div id=\"pgc-8719-8-1\"  class=\"panel-grid-cell\" ><div id=\"panel-8719-8-1-0\" 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<h3>Comment fonctionne le split brain checker ?<\/h3>\n<p>L'\u00e9lection du serveur primaire est bas\u00e9e sur le ping d'une adresse IP, appel\u00e9e t\u00e9moin. Le t\u00e9moin est g\u00e9n\u00e9ralement un routeur toujours disponible. En cas d'isolation r\u00e9seau, seul le serveur ayant acc\u00e8s au t\u00e9moin sera primaire et passera ALONE, l'autre ira en WAIT.<\/p>\n<p>Le t\u00e9moin n'est pas test\u00e9 en permanence mais seulement lorsque tous les heartbeats sont perdus. Si \u00e0 ce moment-l\u00e0, le t\u00e9moin est en panne, le cluster passe \u00e0 l'\u00e9tat WAIT-WAIT et un administrateur peut choisir de red\u00e9marrer l'un des serveurs en tant que serveur primaire via la console Web de SafeKit.<\/p>\n<\/div>\n<\/div><\/div><\/div><div id=\"pgc-8719-8-2\"  class=\"panel-grid-cell\" ><div id=\"panel-8719-8-2-0\" 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<h3>Que se passe-t-il sans split brain checker ?<\/h3>\n<p>En cas d'isolation r\u00e9seau, les deux serveurs passeront \u00e0 l'\u00e9tat ALONE ex\u00e9cutant l'application critique. Les r\u00e9pertoires r\u00e9pliqu\u00e9s sont isol\u00e9s et chaque application travaille sur ses propres donn\u00e9es dans son propre r\u00e9pertoire.<\/p>\n<p>A la reconnexion du r\u00e9seau, SafeKit choisit par d\u00e9faut le serveur qui \u00e9tait PRIM avant l'isolation comme nouveau primaire et force l'autre serveur en SECOND avec une resynchronisation de toutes ses donn\u00e9es depuis le serveur PRIM.<\/p>\n<p>Remarque : Windows peut d\u00e9tecter une adresse IP en double sur un serveur et supprimer l'adresse IP virtuelle sur ce serveur. SafeKit dispose d'un checker pour forcer un red\u00e9marrage dans ce cas.<\/p>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><div id=\"pg-8719-9\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-8719-9\" ><div id=\"pgc-8719-9-0\"  class=\"panel-grid-cell\" ><div id=\"panel-8719-9-0-0\" 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<div data-post-id=\"246579\" class=\"insert-page insert-page-246579 \"><div id=\"pl-246579\"  class=\"panel-layout\" ><div id=\"pg-246579-0\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-246579-0\" ><div id=\"pgc-246579-0-0\"  class=\"panel-grid-cell\" ><div id=\"panel-246579-0-0-0\" 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 Hub de navigation SafeKit Haute Disponibilit\u00e9<\/h2>\n<\/header>\n<div class=\"table-container-mobile\">\n<table class=\"border vertical-middle\">\n<caption>Explorez SafeKit : fonctionnalit\u00e9s, vid\u00e9os techniques, documentation et essai gratuit<\/caption>\n<thead>\n<tr>\n<th scope=\"col\">Type de ressource<\/th>\n<th scope=\"col\">Description<\/th>\n<th scope=\"col\">Lien direct<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<th scope=\"row\"><strong>Fonctionnalit\u00e9s cl\u00e9s<\/strong><\/th>\n<td>Pourquoi choisir SafeKit pour une haute disponibilit\u00e9 simple et \u00e9conomique ?<\/td>\n<td><a title=\"D\u00e9couvrez les fonctionnalit\u00e9s de SafeKit pour une haute disponibilit\u00e9 simple et \u00e9conomique\" href=\"\/fr\/produits\/haute-disponibilite-logiciel-clustering-application\/#why-choose-safekit-for-ha\">Voir pourquoi choisir SafeKit pour la Haute Disponibilit\u00e9<\/a><\/td>\n<\/tr>\n<tr>\n<th scope=\"row\"><strong>Mod\u00e8le de d\u00e9ploiement<\/strong><\/th>\n<td>HA SANless tout-en-un : Cluster logiciel sans partage (Shared-Nothing)<\/td>\n<td><a title=\"En savoir plus sur la haute disponibilit\u00e9 SANless tout-en-un avec cluster logiciel sans partage\" href=\"\/fr\/produits\/haute-disponibilite-logiciel-clustering-application\/#all-in-one-sanless-ha\">Voir SafeKit HA SANless tout-en-un<\/a><\/td>\n<\/tr>\n<tr>\n<th scope=\"row\"><strong>Partenaires<\/strong><\/th>\n<td>SafeKit : La r\u00e9f\u00e9rence en haute disponibilit\u00e9 pour les partenaires<\/td>\n<td><a title=\"Explorez les opportunit\u00e9s de partenariat et les solutions de r\u00e9f\u00e9rence SafeKit\" href=\"\/fr\/produits\/haute-disponibilite-logiciel-clustering-application\/#safekit-ha-benchmark-for-partners\">Voir pourquoi SafeKit est la r\u00e9f\u00e9rence HA pour les partenaires<\/a><\/td>\n<\/tr>\n<tr>\n<th scope=\"row\"><strong>Strat\u00e9gies HA<\/strong><\/th>\n<td>SafeKit : Infrastructure (VM) vs Haute Disponibilit\u00e9 au niveau applicatif<\/td>\n<td><a title=\"Comparez la redondance au niveau VM avec les strat\u00e9gies de haute disponibilit\u00e9 au niveau applicatif de SafeKit\" href=\"\/fr\/produits\/haute-disponibilite-logiciel-clustering-application\/#safekit-ha-redundancy-choices\">Voir SafeKit HA &amp; Redondance : Niveau VM vs Niveau Applicatif<\/a><\/td>\n<\/tr>\n<tr>\n<th scope=\"row\"><strong>Sp\u00e9cifications techniques<\/strong><\/th>\n<td>Limitations techniques pour le clustering SafeKit<\/td>\n<td><a title=\"Configuration requise et limitations techniques pour le clustering d'applications SafeKit\" href=\"\/fr\/produits\/haute-disponibilite-logiciel-clustering-application\/#safekit-ha-limitations\">Voir les limitations de la Haute Disponibilit\u00e9 SafeKit<\/a><\/td>\n<\/tr>\n<tr>\n<th scope=\"row\"><strong>Preuve de concept<\/strong><\/th>\n<td>SafeKit : D\u00e9mos de configuration HA et de basculement<\/td>\n<td><a title=\"Vid\u00e9os pas \u00e0 pas sur la haute disponibilit\u00e9 SafeKit, de l'installation au basculement automatis\u00e9\" href=\"\/fr\/produits\/haute-disponibilite-logiciel-clustering-application\/#safekit-failover-tutorials\">Voir les tutoriels de basculement SafeKit<\/a><\/td>\n<\/tr>\n<tr>\n<th scope=\"row\"><strong>Architecture<\/strong><\/th>\n<td>Fonctionnement du cluster miroir SafeKit (R\u00e9plication et basculement en temps r\u00e9el)<\/td>\n<td><a title=\"D\u00e9couvrez l'architecture technique et le m\u00e9canisme de basculement du cluster miroir SafeKit\" href=\"\/fr\/produits\/haute-disponibilite-logiciel-clustering-application\/#safekit-mirror-cluster\">Voir Cluster miroir SafeKit : r\u00e9plication et basculement en temps r\u00e9el<\/a><\/td>\n<\/tr>\n<tr>\n<th scope=\"row\"><strong>Architecture<\/strong><\/th>\n<td>Fonctionnement du cluster de ferme SafeKit (R\u00e9partition de charge r\u00e9seau et basculement)<\/td>\n<td><a title=\"Pr\u00e9sentation technique de l'architecture du cluster de ferme SafeKit avec r\u00e9partition de charge r\u00e9seau\" href=\"\/fr\/produits\/haute-disponibilite-logiciel-clustering-application\/#safekit-farm-cluster\">Voir Cluster de ferme SafeKit : r\u00e9partition de charge et basculement<\/a><\/td>\n<\/tr>\n<tr>\n<th scope=\"row\"><strong>Avantages concurrentiels<\/strong><\/th>\n<td>Comparaison : SafeKit vs Clusters de Haute Disponibilit\u00e9 (HA) traditionnels<\/td>\n<td><a title=\"Comparaison d\u00e9taill\u00e9e du logiciel SafeKit par rapport aux clusters HA mat\u00e9riels traditionnels\" href=\"\/fr\/produits\/haute-disponibilite-logiciel-clustering-application\/#safekit-ha-comparison\">Voir la comparaison SafeKit vs Clusters HA traditionnels<\/a><\/td>\n<\/tr>\n<tr>\n<th scope=\"row\"><strong>Ressources techniques<\/strong><\/th>\n<td>SafeKit Haute Disponibilit\u00e9 : Documentation, t\u00e9l\u00e9chargements et essai<\/td>\n<td><a title=\"Acc\u00e9dez \u00e0 l'essai gratuit de SafeKit, \u00e0 la documentation technique et aux livres blancs sur la haute disponibilit\u00e9\" href=\"\/fr\/produits\/haute-disponibilite-logiciel-clustering-application\/#safekit-ha-technical-resources\">Voir l'essai gratuit SafeKit HA &amp; la documentation technique<\/a><\/td>\n<\/tr>\n<tr>\n<th scope=\"row\"><strong>Solutions pr\u00e9configur\u00e9es<\/strong><\/th>\n<td>Biblioth\u00e8que de modules applicatifs SafeKit : solutions HA pr\u00eates \u00e0 l'emploi<\/td>\n<td><a title=\"Parcourez la biblioth\u00e8que de modules SafeKit pr\u00e9configur\u00e9s pour le basculement automatique d'applications\" href=\"\/fr\/produits\/haute-disponibilite-logiciel-clustering-application\/#safekit-ha-application-modules\">Voir les modules applicatifs de Haute Disponibilit\u00e9 SafeKit<\/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-8719-10\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-8719-10\" ><div id=\"pgc-8719-10-0\"  class=\"panel-grid-cell\" ><div id=\"panel-8719-10-0-0\" 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<div data-post-id=\"71459\" class=\"insert-page insert-page-71459 \"><div id=\"pl-71459\"  class=\"panel-layout\" ><div id=\"pg-71459-0\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-71459-0\" ><div id=\"pgc-71459-0-0\"  class=\"panel-grid-cell panel-grid-cell-empty\" ><\/div><div id=\"pgc-71459-0-1\"  class=\"panel-grid-cell\" ><div id=\"panel-71459-0-1-0\" 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-71459\"\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=\"\/fr\/produits\/haute-disponibilite-logiciel-clustering-application\/contactez-nous-a-propos-de-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 Nous contacter\t\t<\/span>\n\t\t\t<\/a>\n\t<\/div>\n<\/div><\/div><\/div><div id=\"pgc-71459-0-2\"  class=\"panel-grid-cell\" ><div id=\"panel-71459-0-2-0\" 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-71459\"\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:\/\/safekit.evidian.com\/fr\/produits\/haute-disponibilite-logiciel-clustering-application\/essai-gratuit-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\ud83c\udf81 Essai gratuit de SafeKit\t\t<\/span>\n\t\t\t<\/a>\n\t<\/div>\n<\/div><\/div><\/div><div id=\"pgc-71459-0-3\"  class=\"panel-grid-cell\" ><div id=\"panel-71459-0-3-0\" 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-71459\"\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 Certification gratuite\t\t<\/span>\n\t\t\t<\/a>\n\t<\/div>\n<\/div><\/div><\/div><div id=\"pgc-71459-0-4\"  class=\"panel-grid-cell panel-grid-cell-mobile-last\" ><div id=\"panel-71459-0-4-0\" 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-71459\"\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=\"\/fr\/produits\/haute-disponibilite-logiciel-clustering-application\/obtenez-un-prix\/\"\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 Prix licence perp\u00e9tuelle\t\t<\/span>\n\t\t\t<\/a>\n\t<\/div>\n<\/div><\/div><\/div><div id=\"pgc-71459-0-5\"  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":"Battement de c\u0153ur, basculement et quorum dans les clusters Windows et Linux SafeKit propose un cluster sans SAN avec un v\u00e9rificateur de split-brain simplifi\u00e9","protected":false},"author":3,"featured_media":0,"parent":4303,"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-8719","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.2 (Yoast SEO v27.4) - 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SafeKit propose une architecture sans SAN qui \u00e9limine le besoin d&#039;un troisi\u00e8me serveur de quorum ou d&#039;un disque de quorum d\u00e9di\u00e9. B\u00e9n\u00e9ficiez d&#039;une haute disponibilit\u00e9 sous Windows et Linux gr\u00e2ce \u00e0 un simple outil de v\u00e9rification de la pr\u00e9sence d&#039;un syst\u00e8me isol\u00e9.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/safekit.evidian.com\/fr\/produits\/haute-disponibilite-logiciel-clustering-application\/heartbeat-failover-quorum-cluster\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Battement de c\u0153ur, basculement et quorum dans les clusters Windows et Linux\" \/>\n<meta property=\"og:description\" content=\"D\u00e9couvrez le fonctionnement des pulsations, du basculement et du quorum dans un cluster. 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