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1.0vstack.comhttps://vstack-test.itglobal.comSofiya Toropovahttps://vstack-test.itglobal.com/blog/author/sofiya-toropova/Redundancy - vstack.comrich600338<blockquote class="wp-embedded-content" data-secret="8hPxd5PIJN"><a href="https://vstack-test.itglobal.com/glossary/redundancy/">Redundancy</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://vstack-test.itglobal.com/glossary/redundancy/embed/#?secret=8hPxd5PIJN" width="600" height="338" title="“Redundancy” — vstack.com" data-secret="8hPxd5PIJN" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript"> /* <![CDATA[ */ /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); /* ]]> */ </script> Redundancy – using more elements than minimally required. For example, if a server has only one common element running, the entire system will fail if it fails. If the server is provided with additional redundant resources, they will replace the damaged one and prevent the server from stopping. Providing redundancy is possible in several ways. […]