{"id":9083,"date":"2008-06-19T12:19:00","date_gmt":"1999-11-29T20:00:00","guid":{"rendered":"https:\/\/aidanfinn.com\/?p=9083"},"modified":"2008-06-19T12:19:00","modified_gmt":"1999-11-29T20:00:00","slug":"hyper-v-vm-loading","status":"publish","type":"post","link":"https:\/\/aidanfinn.com\/?p=9083","title":{"rendered":"Hyper-V VM Loading"},"content":{"rendered":"<p>I&#8217;m using a lab box with 9GB RAM in it for testing to see what sort of load I can get out of a Hyper-V host.\u00a0 Remember that Hyper-V does not do memory\u00a0 over-committing like you get on ESX &#8211; who <em>really<\/em> wants paging both in the virtual machine&#8217;s virtual disk and on the physical host?\u00a0 That sounds like server admin hell to me!\n<\/p>\n<p>Anyway, I managed to get a series of virtual machines up and running, each with varying RAM assignment to reflect a production environment.\u00a0 The result was that I got 7GB of VM&#8217;s up and running on the 9GB host.\u00a0 It <em>appears<\/em> that a full installation of Windows Server 2008 with RC1 of Hyper-V consumes 2GB RAM.\u00a0 That probably comes down if you use a core installation instead, which I&#8217;d recommend in a Hyper-V farm.\n<\/p>\n<p>Cool thing here is that I noticed no drop in performance.\u00a0 The VM&#8217;s all run quite smoothly &#8211; we&#8217;re doing all sorts of things with the VM&#8217;s so they are actually doing real (albeit just lab) work.\n<\/p>\n<p>EDIT:\n<\/p>\n<p>I followed this post up with some <a href=\"http:\/\/joeelway.spaces.live.com\/blog\/cns!2095EAC3772C41DB!872.entry\">research <\/a>on the memory overhead\u00a0requirements and how Hyper-V uses RAM.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I&#8217;m using a lab box with 9GB RAM in it for testing to see what sort of load I can get out of a Hyper-V host.\u00a0 Remember that Hyper-V does not do memory\u00a0 over-committing like you get on ESX &#8211; who really wants paging both in the virtual machine&#8217;s virtual disk and on the physical &hellip; <a href=\"https:\/\/aidanfinn.com\/?p=9083\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Hyper-V VM Loading&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[20],"tags":[],"class_list":["post-9083","post","type-post","status-publish","format-standard","hentry","category-hyper-v"],"aioseo_notices":[],"jetpack_featured_media_url":"","amp_enabled":true,"_links":{"self":[{"href":"https:\/\/aidanfinn.com\/index.php?rest_route=\/wp\/v2\/posts\/9083","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aidanfinn.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aidanfinn.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aidanfinn.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aidanfinn.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=9083"}],"version-history":[{"count":0,"href":"https:\/\/aidanfinn.com\/index.php?rest_route=\/wp\/v2\/posts\/9083\/revisions"}],"wp:attachment":[{"href":"https:\/\/aidanfinn.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9083"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aidanfinn.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9083"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aidanfinn.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9083"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}