{"id":215423,"date":"2023-02-19T08:54:57","date_gmt":"2023-02-19T06:54:57","guid":{"rendered":"https:\/\/safekit.evidian.com\/?page_id=215423"},"modified":"2026-04-22T09:44:46","modified_gmt":"2026-04-22T07:44:46","slug":"coupure-de-courant-et-isolement-du-reseau-dans-un-cluster","status":"publish","type":"page","link":"https:\/\/safekit.evidian.com\/fr\/produits\/haute-disponibilite-logiciel-clustering-application\/coupure-de-courant-et-isolement-du-reseau-dans-un-cluster\/","title":{"rendered":"Gestion des pannes de courant et de l'isolation r\u00e9seau dans un cluster HA"},"content":{"rendered":"<div id=\"pl-215423\"  class=\"panel-layout\" ><div id=\"pg-215423-0\"  class=\"panel-grid panel-has-style\" ><div class=\"so-rounded panel-row-style panel-row-style-for-215423-0\" ><div id=\"pgc-215423-0-0\"  class=\"panel-grid-cell\" ><div id=\"panel-215423-0-0-0\" 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-215423-0-0-0\" ><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;\">Gestion des pannes de courant et de l'isolation r\u00e9seau dans un cluster HA<\/h1>\n<h2 style=\"text-align: left; color: white; font-size: 26px;\">SafeKit propose une architecture sans SAN pour une reprise apr\u00e8s incident r\u00e9siliente et la pr\u00e9vention du split-brain<\/h2>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><\/div><div id=\"pg-215423-1\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-215423-1\" ><div id=\"pgc-215423-1-0\"  class=\"panel-grid-cell\" ><div id=\"panel-215423-1-0-0\" 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-215423-2\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-215423-2\" ><div id=\"pgc-215423-2-0\"  class=\"panel-grid-cell\" ><div id=\"panel-215423-2-0-0\" 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-215423-3\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-215423-3\" ><div id=\"pgc-215423-3-0\"  class=\"panel-grid-cell\" ><div id=\"panel-215423-3-0-0\" 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=\"outage\"><\/a>Quels sont les diff\u00e9rents sc\u00e9narios en cas de coupure de courant dans un cluster ?<\/h2>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><div id=\"pg-215423-4\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-215423-4\" ><div id=\"pgc-215423-4-0\"  class=\"panel-grid-cell\" ><div id=\"panel-215423-4-0-0\" 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;\">Coupure de courant du n\u0153ud primaire<\/h3>\n<\/div>\n<\/div><\/div><div id=\"panel-215423-4-0-1\" 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-stop-alone-300.png\" width=\"300\" height=\"169\" alt=\"SafeKit stop alone\" \/><\/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-second-prim-300.png\" width=\"300\" height=\"169\" alt=\"SafeKit second prim\" \/><\/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\t\t<li><a href=\"#\" data-goto=\"2\" aria-label=\"Display slide 3\"><\/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-215423-4-0-2\" 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'une panne de courant arr\u00eate uniquement le n\u0153ud primaire :<\/p>\n<ul>\n<li>il y a un basculement automatique sur le n\u0153ud secondaire, qui devient ALONE et red\u00e9marre l'application,<\/li>\n<li>lorsque le n\u0153ud 1 est red\u00e9marr\u00e9, il devient SEDOND apr\u00e8s resynchronisation des donn\u00e9es r\u00e9pliqu\u00e9es,<\/li>\n<li>les r\u00f4les de primaire et de secondaire peuvent \u00eatre \u00e9chang\u00e9s par un administrateur si n\u00e9cessaire.<\/li>\n<\/ul>\n<\/div>\n<\/div><\/div><\/div><div id=\"pgc-215423-4-1\"  class=\"panel-grid-cell\" ><div id=\"panel-215423-4-1-0\" 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;\">Coupure de courant du n\u0153ud secondaire<\/h3>\n<\/div>\n<\/div><\/div><div id=\"panel-215423-4-1-1\" 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-stop-300.png\" width=\"300\" height=\"169\" alt=\"SafeKit alone stop\" \/><\/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-215423-4-1-2\" 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'une panne de courant arr\u00eate uniquement le n\u0153ud secondaire\u00a0:<\/p>\n<ul>\n<li>il n'y a pas de basculement, le primaire devient ALONE et l'application continue son ex\u00e9cution sur le n\u0153ud 1,<\/li>\n<li>lorsque le n\u0153ud 2 est red\u00e9marr\u00e9, il devient SEDOND apr\u00e8s resynchronisation des donn\u00e9es r\u00e9pliqu\u00e9es.<\/li>\n<\/ul>\n<\/div>\n<\/div><\/div><\/div><div id=\"pgc-215423-4-2\"  class=\"panel-grid-cell\" ><div id=\"panel-215423-4-2-0\" class=\"so-panel widget widget_sow-editor panel-first-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 style=\"text-align:center;\">Coupure de courant g\u00e9n\u00e9rale - cas 1<\/h3>\n<\/div>\n<\/div><\/div><div id=\"panel-215423-4-2-1\" class=\"so-panel widget widget_sow-hero\" data-index=\"11\" ><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-stop-stop-300.png\" width=\"300\" height=\"169\" alt=\"SafeKit stop stop\" \/><\/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-wait-stop-300.png\" width=\"300\" height=\"169\" alt=\"SafeKit wait stop\" \/><\/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\t\t<li><a href=\"#\" data-goto=\"2\" aria-label=\"Display slide 3\"><\/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-215423-4-2-2\" class=\"so-panel widget widget_sow-editor 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<p>Lorsqu'une panne de courant arr\u00eate les deux n\u0153uds, le comportement par d\u00e9faut est\u00a0:<\/p>\n<ul>\n<li>les deux n\u0153uds passent \u00e0 STOP,<\/li>\n<li>lorsque le n\u0153ud 1 est red\u00e9marr\u00e9, il ne passe pas \u00e0 l'\u00e9tat ALONE et ne red\u00e9marre pas l'application car il ne sait pas s'il dispose des donn\u00e9es \u00e0 jour. Il passe donc \u00e0 l'\u00e9tat WAIT en attendant le red\u00e9marrage de l'autre n\u0153ud,<\/li>\n<li>lorsque le n\u0153ud 2 est red\u00e9marr\u00e9, les deux n\u0153uds reviennent \u00e0 leurs \u00e9tats PRIM\/SECOND pr\u00e9c\u00e9dents.<\/li>\n<\/ul>\n<\/div>\n<\/div><\/div><\/div><div id=\"pgc-215423-4-3\"  class=\"panel-grid-cell\" ><div id=\"panel-215423-4-3-0\" class=\"so-panel widget widget_sow-editor panel-first-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 style=\"text-align:center;\">Coupure de courant g\u00e9n\u00e9rale - cas 2<\/h3>\n<\/div>\n<\/div><\/div><div id=\"panel-215423-4-3-1\" class=\"so-panel widget widget_sow-hero\" data-index=\"14\" ><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-stop-stop-300.png\" width=\"300\" height=\"169\" alt=\"SafeKit stop stop\" \/><\/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-stop-300.png\" width=\"300\" height=\"169\" alt=\"SafeKit alone stop\" \/><\/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\t\t<li><a href=\"#\" data-goto=\"2\" aria-label=\"Display slide 3\"><\/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-215423-4-3-2\" class=\"so-panel widget widget_sow-editor 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<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 routeur (un t\u00e9moin),<\/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'isolation est r\u00e9par\u00e9e, 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 id=\"pg-215423-5\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-215423-5\" ><div id=\"pgc-215423-5-0\"  class=\"panel-grid-cell\" ><div id=\"panel-215423-5-0-0\" 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-215423-6\"  class=\"panel-grid panel-has-style\" ><div class=\"panel-row-style panel-row-style-for-215423-6\" ><div id=\"pgc-215423-6-0\"  class=\"panel-grid-cell\" ><div id=\"panel-215423-6-0-0\" 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":"Gestion des pannes de courant et de l'isolation r\u00e9seau dans un cluster HA SafeKit propose une architecture sans SAN pour une reprise apr\u00e8s incident r\u00e9siliente et la pr\u00e9vention du split-brain","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-215423","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 avec des v\u00e9rificateurs de split-brain int\u00e9gr\u00e9s et une resynchronisation automatique pour garantir l&#039;int\u00e9grit\u00e9 des donn\u00e9es et une disponibilit\u00e9 24h\/24 et 7j\/7 sans disque partag\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\/coupure-de-courant-et-isolement-du-reseau-dans-un-cluster\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Gestion des pannes de courant et de l&#039;isolation r\u00e9seau dans un cluster HA\" \/>\n<meta property=\"og:description\" content=\"D\u00e9couvrez comment g\u00e9rer l&#039;isolation r\u00e9seau et les coupures de courant dans un cluster \u00e0 haute disponibilit\u00e9. SafeKit propose une architecture sans SAN avec des v\u00e9rificateurs de split-brain int\u00e9gr\u00e9s et une resynchronisation automatique pour garantir l&#039;int\u00e9grit\u00e9 des donn\u00e9es et une disponibilit\u00e9 24h\/24 et 7j\/7 sans disque partag\u00e9.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/safekit.evidian.com\/fr\/produits\/haute-disponibilite-logiciel-clustering-application\/coupure-de-courant-et-isolement-du-reseau-dans-un-cluster\/\" \/>\n<meta property=\"og:site_name\" content=\"SafeKit HA\" \/>\n<meta property=\"article:modified_time\" content=\"2026-04-22T07:44:46+00:00\" \/>\n<meta name=\"twitter:label1\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data1\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/safekit.evidian.com\\\/fr\\\/produits\\\/haute-disponibilite-logiciel-clustering-application\\\/coupure-de-courant-et-isolement-du-reseau-dans-un-cluster\\\/\",\"url\":\"https:\\\/\\\/safekit.evidian.com\\\/fr\\\/produits\\\/haute-disponibilite-logiciel-clustering-application\\\/coupure-de-courant-et-isolement-du-reseau-dans-un-cluster\\\/\",\"name\":\"Gestion des pannes de courant et de l'isolation r\u00e9seau dans un cluster HA - SafeKit HA\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/safekit.evidian.com\\\/fr\\\/#website\"},\"datePublished\":\"2023-02-19T06:54:57+00:00\",\"dateModified\":\"2026-04-22T07:44:46+00:00\",\"description\":\"D\u00e9couvrez comment g\u00e9rer l'isolation r\u00e9seau et les coupures de courant dans un cluster \u00e0 haute disponibilit\u00e9. 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