{"id":5729,"date":"2020-10-12T08:38:25","date_gmt":"2020-10-12T06:38:25","guid":{"rendered":"https:\/\/tekmart.co.za\/t-blog\/?p=5729"},"modified":"2020-10-12T08:38:27","modified_gmt":"2020-10-12T06:38:27","slug":"zombie-server-comatose-server-what-is-this","status":"publish","type":"post","link":"https:\/\/tekmart.co.za\/t-blog\/zombie-server-comatose-server-what-is-this\/","title":{"rendered":"zombie server (comatose server)-what is this?"},"content":{"rendered":"<span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time-approximately:<\/span> <span class=\"rt-time\"> &lt; 1<\/span> <span class=\"rt-label rt-postfix\">minute<\/span><\/span>\n<h2 class=\"wp-block-heading\"><strong>A zombie server is a physical\u00a0server\u00a0that is running but has no\u00a0external communications or visibility and contributes no compute resources; essentially,\u00a0it consumes electricity but serves no useful purpose.<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/cdn.ttgtmedia.com\/rms\/onlineImages\/rouse_margaret.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>Posted by:\u00a0<a href=\"https:\/\/www.techtarget.com\/contributor\/Margaret-Rouse\">Margaret Rouse<\/a><\/p>\n\n\n\n<p>Contributor(s): Matthew Haughn<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>Zombie servers\u00a0are often created\u00a0because\u00a0user-requested\u00a0applications\u00a0end up\u00a0getting no use or almost no use (typically defined as under\u00a0six percent). Other causes include\u00a0redundant\u00a0or\u00a0legacy applications\u00a0and\u00a0services that have been replaced.\u00a0An estimated\u00a0one in three servers in North America falls into the &#8220;undead&#8221; category.<\/p><\/blockquote>\n\n\n\n<p>According to a study conducted by the consulting firm Anthesis Group and Jonathan Koomey, a research fellow at Stanford University, there are approximately 3.6 million zombie servers in the United States; worldwide, the total could be as high as 10 million. <\/p>\n\n\n\n<p>Theoretically, four gigawatts of power could be saved by killing zombie servers. Based on calculations by TSO Logic, a company with 1000 servers could net savings of $300,000. AOL&#8217;s five-year project to purge its sites of zombie servers netted the organization $10 million and\u00a0in just one year\u00a0resulted in a 35 percent reduction in its\u00a0carbon footprint.<\/p>\n\n\n\n<p>To reduce the\u00a0server sprawl\u00a0associated with\u00a0zombie servers, multiple low-utilization servers\u00a0may be\u00a0combined into single\u00a0virtual servers. Servers that are entirely unused can sometimes be repurposed. Otherwise, IT should just kill the zombie &#8212; by pulling the plug.<\/p>\n\n\n\n<p>Zombie servers are sometimes referred to as comatose servers.<\/p>\n\n\n\n<p>See a brief video about finding and fixing zombie servers:<\/p>\n\n\n\n<figure class=\"wp-block-embed-youtube wp-block-embed is-type-video is-provider-youtube wp-embed-aspect-4-3 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"Viridity: Finding Zombie Servers\" width=\"500\" height=\"375\" src=\"https:\/\/www.youtube.com\/embed\/R86GkN8k2P8?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time-approximately:<\/span> <span class=\"rt-time\"> &lt; 1<\/span> <span class=\"rt-label rt-postfix\">minute<\/span><\/span>A zombie server is a physical\u00a0server\u00a0that is running but has no\u00a0external communications or visibility and contributes no compute resources; essentially,\u00a0it consumes electricity but serves no useful purpose. Posted by:\u00a0Margaret Rouse Contributor(s): Matthew Haughn Zombie servers\u00a0are often created\u00a0because\u00a0user-requested\u00a0applications\u00a0end up\u00a0getting no use or almost no use (typically defined as under\u00a0six percent). Other causes include\u00a0redundant\u00a0or\u00a0legacy applications\u00a0and\u00a0services that have been replaced.\u00a0An estimated\u00a0one in three<\/p>\n<p><a class=\"more-link\" href=\"https:\/\/tekmart.co.za\/t-blog\/zombie-server-comatose-server-what-is-this\/\">Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8,4,30,16,3,9,12,95],"tags":[],"class_list":["post-5729","post","type-post","status-publish","format-standard","hentry","category-data-center-hardware","category-datacenter-news","category-expert-advise-and-opinion","category-how-tos-and-other-useful-tips-and-tricks","category-industry-news-and-expert-advise","category-tech-definitions","category-tekmart-enterprise-hardware-tips","category-timeless-tips"],"_links":{"self":[{"href":"https:\/\/tekmart.co.za\/t-blog\/wp-json\/wp\/v2\/posts\/5729","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tekmart.co.za\/t-blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tekmart.co.za\/t-blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tekmart.co.za\/t-blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tekmart.co.za\/t-blog\/wp-json\/wp\/v2\/comments?post=5729"}],"version-history":[{"count":1,"href":"https:\/\/tekmart.co.za\/t-blog\/wp-json\/wp\/v2\/posts\/5729\/revisions"}],"predecessor-version":[{"id":5730,"href":"https:\/\/tekmart.co.za\/t-blog\/wp-json\/wp\/v2\/posts\/5729\/revisions\/5730"}],"wp:attachment":[{"href":"https:\/\/tekmart.co.za\/t-blog\/wp-json\/wp\/v2\/media?parent=5729"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tekmart.co.za\/t-blog\/wp-json\/wp\/v2\/categories?post=5729"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tekmart.co.za\/t-blog\/wp-json\/wp\/v2\/tags?post=5729"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}