{"id":1433,"date":"2018-08-20T21:25:28","date_gmt":"2018-08-20T21:25:28","guid":{"rendered":"http:\/\/wiki.thomasandsofia.com\/?p=1433"},"modified":"2019-01-16T11:15:19","modified_gmt":"2019-01-16T11:15:19","slug":"csap-high-availability-business-continuity","status":"publish","type":"post","link":"https:\/\/wiki.thomasandsofia.com\/?p=1433","title":{"rendered":"CSAP &#8211; High Availability &#038; Business Continuity"},"content":{"rendered":"<a href=\"http:\/\/wiki.thomasandsofia.com\/2018\/08\/20\/aws-certified-solutions-architect-professional-overview\/\">Main Menu<\/a>\r\n<h1>High Availability &amp; Business Continuity<\/h1>\r\nSection Outline\r\n<ul>\r\n \t<li><a href=\"https:\/\/www.udemy.com\/aws-certified-solutions-architect-professional\/learn\/v4\/t\/lecture\/8661862?start=0\" target=\"_blank\" rel=\"noopener\">Overview (Video Only)<\/a><\/li>\r\n \t<li><a href=\"http:\/\/wiki.thomasandsofia.com\/2018\/08\/20\/csap-understanding-high-availability\/\">Understanding High Availability Configurations<\/a><\/li>\r\n \t<li><a href=\"http:\/\/wiki.thomasandsofia.com\/2018\/08\/20\/csap-rto-and-rpo\/\">RTO &amp; RPO<\/a><\/li>\r\n \t<li><a href=\"http:\/\/wiki.thomasandsofia.com\/2018\/08\/20\/csap-disaster-recovery-models\/\">Disaster Recovery Models<\/a><\/li>\r\n \t<li><a href=\"http:\/\/wiki.thomasandsofia.com\/2018\/08\/20\/csap-overview-of-route53-for-multi-site-failover\/\">Overview of Route53 for Multi-Site Failover<\/a><\/li>\r\n \t<li><a href=\"http:\/\/wiki.thomasandsofia.com\/2018\/08\/20\/csap-advanced-route53-configurations\/\">Advanced Route53 Configurations<\/a><\/li>\r\n \t<li><a href=\"http:\/\/wiki.thomasandsofia.com\/2018\/08\/20\/csap-route53-understanding-health-checks\/\">Route53 &#8211; Understanding Health Checks<\/a><\/li>\r\n \t<li><a href=\"http:\/\/wiki.thomasandsofia.com\/2018\/08\/20\/csap-route53-implementing-health-checks-on-nginx\/\">Route53 &#8211; Implementing Health Checks<\/a><\/li>\r\n \t<li><a href=\"http:\/\/wiki.thomasandsofia.com\/2018\/08\/20\/csap-route53-understanding-failover-routing-policy\/\">Route53 &#8211; Understanding Failover Routing Policy<\/a><\/li>\r\n \t<li><a href=\"http:\/\/wiki.thomasandsofia.com\/2018\/08\/20\/csap-implementing-failover-routing-policy\/\">Implementing Failover Routing Policy<\/a><\/li>\r\n \t<li><a href=\"http:\/\/wiki.thomasandsofia.com\/2018\/08\/20\/csap-understanding-self-healing-based-architecture\/\">Understanding Self-Healing Based Architecture<\/a><\/li>\r\n \t<li><a href=\"http:\/\/wiki.thomasandsofia.com\/2018\/08\/20\/csap-multi-az-vs-multi-region-based-design\/\">Multi-AZ vs. Multi-Region Based Design<\/a><\/li>\r\n \t<li><a href=\"http:\/\/wiki.thomasandsofia.com\/2018\/08\/20\/csap-quiz-1-high-availability-and-business-continuity\/\">Quiz 1: High Availability &amp; Business Continuity<\/a><\/li>\r\n<\/ul>\r\n&nbsp;\r\n<h1>Understanding High Availability Configurations<\/h1>\r\n<a href=\"https:\/\/www.udemy.com\/aws-certified-solutions-architect-professional\/learn\/v4\/t\/lecture\/8530100?start=0\" target=\"_blank\" rel=\"noopener\">https:\/\/www.udemy.com\/aws-certified-solutions-architect-professional\/learn\/v4\/t\/lecture\/8530100?start=0<\/a>\r\n\r\n<strong>Everything fails, all the time<\/strong>\r\n<h2>What is High Availability?<\/h2>\r\n<ul>\r\n \t<li>Is a characteristic of the system design which makes resource available even in the case of any component failure in a computer system.<\/li>\r\n \t<li>Availability refers to the amount of time the system is in a functioning condition<\/li>\r\n \t<li>General Availability: 100% &#8211; Downtime<\/li>\r\n<\/ul>\r\n<a href=\"https:\/\/uptime.is\/\" target=\"_blank\" rel=\"noopener\">SLA Calculator<\/a>\r\n\r\n\r\n<table class=\"wp-block-table\">\r\n<tbody>\r\n<tr>\r\n<td>Percent Uptime<\/td>\r\n<td>Max Downtime \/ Year<\/td>\r\n<td>Equiv. Downtime \/ Day<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>90%<\/td>\r\n<td>36.5 days<\/td>\r\n<td>2.4 hours<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>99%<\/td>\r\n<td>3.65 days<\/td>\r\n<td>14 minutes<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>99.9<\/td>\r\n<td>8.76 hours<\/td>\r\n<td>86 seconds<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>99.95 (EC2 Uptime SLA)<\/td>\r\n<td>4.38 hours<\/td>\r\n<td>43 seconds<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n\r\n<h2>Important Points<\/h2>\r\n<ul>\r\n \t<li>Improving availability leads to cost increases. It&#8217;s important to balance\u00a0 betweeen the cost factor and the availability.<\/li>\r\n \t<li>SLA of your organization matters.\u00a0 90% SLA means 2.4 hours of downtime every day.<\/li>\r\n \t<li>You can use Pingdom to get reports on your website&#8217;s uptime.<\/li>\r\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Main Menu High Availability &amp; Business Continuity Section Outline Overview (Video Only) Understanding High Availability Configurations RTO &amp; RPO Disaster Recovery Models Overview of Route53 for Multi-Site Failover Advanced Route53 Configurations Route53 &#8211; Understanding Health Checks Route53 &#8211; Implementing Health Checks Route53 &#8211; Understanding Failover Routing Policy Implementing Failover Routing Policy Understanding Self-Healing Based Architecture ..<\/p>\n<div class=\"clear-fix\"><\/div>\n<p><a href=\"https:\/\/wiki.thomasandsofia.com\/?p=1433\" title=\"read more...\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18,38],"tags":[],"class_list":["post-1433","post","type-post","status-publish","format-standard","hentry","category-amazon-web-services-aws","category-certified-solutions-architect-professional"],"_links":{"self":[{"href":"https:\/\/wiki.thomasandsofia.com\/index.php?rest_route=\/wp\/v2\/posts\/1433","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wiki.thomasandsofia.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wiki.thomasandsofia.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wiki.thomasandsofia.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wiki.thomasandsofia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1433"}],"version-history":[{"count":6,"href":"https:\/\/wiki.thomasandsofia.com\/index.php?rest_route=\/wp\/v2\/posts\/1433\/revisions"}],"predecessor-version":[{"id":1631,"href":"https:\/\/wiki.thomasandsofia.com\/index.php?rest_route=\/wp\/v2\/posts\/1433\/revisions\/1631"}],"wp:attachment":[{"href":"https:\/\/wiki.thomasandsofia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1433"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wiki.thomasandsofia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1433"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wiki.thomasandsofia.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1433"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}