{"id":1007,"date":"2011-08-25T19:11:52","date_gmt":"2011-08-25T23:11:52","guid":{"rendered":"http:\/\/antipaucity.com\/?p=1007"},"modified":"2011-08-25T19:11:52","modified_gmt":"2011-08-25T23:11:52","slug":"assessment-and-capacity-analysis-and-planning-for-virtualization-initiatives","status":"publish","type":"post","link":"https:\/\/merikebi.warrenmyers.com\/?p=1007","title":{"rendered":"assessment and capacity analysis and planning for virtualization initiatives"},"content":{"rendered":"<p>Q:<\/p>\n<blockquote><p>What would need to go into an assessment tool for a virtualization initiative?<\/p><\/blockquote>\n<p>A:<\/p>\n<blockquote><p>Typical factors may include:<\/p>\n<ul>\n<li>current CPU load per server<\/li>\n<li>what&#8217;s running on each server<\/li>\n<li>current hardware of each server<\/li>\n<li>expected percentage increase in usage<\/li>\n<li>OS usage &#8211; homogenous or heterogeneous<\/li>\n<li>new hardware or re-use current hardware<\/li>\n<li>storage needs<\/li>\n<li>vendor for virtualization (VMware, Microsoft, Xen)<\/li>\n<\/ul>\n<p>And don&#8217;t forget the all-important:<\/p>\n<ul>\n<li><strong>BUDGET<\/strong><\/li>\n<\/ul>\n<p>My experience is all related around VMware, but what I&#8217;ve seen and used in the past is the following:<\/p>\n<ul>\n<li>look at all CPU utilizations currently<\/li>\n<li>add those average and peak percentages in two separate columns<\/li>\n<li>plan for ~10% overhead from your hypervisor of choice<\/li>\n<li>for every 40% of &#8216;average&#8217; or 80% of &#8216;peak&#8217;, use one server of the type you now consider &#8220;high-end&#8221; (ie, if you have a total of 687% of &#8216;peak&#8217;, you need 9 physical servers running your hypervisor of choice)<\/li>\n<\/ul>\n<p>Other thoughts:<\/p>\n<ul>\n<li>I like to plan for 1 full spare physical server per ~6, so that I can utilize Vmware&#8217;s Vmotion for migrating servers around<\/li>\n<li>plan for buying\/utilizing SAN storage of some form so your VMs can be moved to different physical servers easily<\/li>\n<\/ul>\n<\/blockquote>\n<hr \/>\n<p><sup><sub>I originally <a href=\"http:\/\/serverfault.com\/questions\/58393\/assessment-planning-toolkit\/66650#66650\">answered<\/a> this <a href=\"http:\/\/serverfault.com\/q\/58393\/2321\">topic<\/a> ~2 years ago on serverfault.com.<\/sub><\/sup><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Q: What would need to go into an assessment tool for a virtualization initiative? A: Typical factors may include: current CPU load per server what&#8217;s running on each server current hardware of each server expected percentage increase in usage OS usage &#8211; homogenous or heterogeneous new hardware or re-use current hardware storage needs vendor for &hellip;<br \/><a href=\"https:\/\/merikebi.warrenmyers.com\/?p=1007\" class=\"more-link pen_button pen_element_default pen_icon_arrow_double\">Continue reading <span class=\"screen-reader-text\">assessment and capacity analysis and planning for virtualization initiatives<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_hide_featured_image":false,"_jetpack_featured_image_duplicate_dismissed":0,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[12,22,41],"tags":[],"keyring_services":[],"class_list":["post-1007","post","type-post","status-publish","format-standard","hentry","category-engineering","category-ideas","category-technical"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/merikebi.warrenmyers.com\/index.php?rest_route=\/wp\/v2\/posts\/1007","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/merikebi.warrenmyers.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/merikebi.warrenmyers.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/merikebi.warrenmyers.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/merikebi.warrenmyers.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1007"}],"version-history":[{"count":0,"href":"https:\/\/merikebi.warrenmyers.com\/index.php?rest_route=\/wp\/v2\/posts\/1007\/revisions"}],"wp:attachment":[{"href":"https:\/\/merikebi.warrenmyers.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1007"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/merikebi.warrenmyers.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1007"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/merikebi.warrenmyers.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1007"},{"taxonomy":"keyring_services","embeddable":true,"href":"https:\/\/merikebi.warrenmyers.com\/index.php?rest_route=%2Fwp%2Fv2%2Fkeyring_services&post=1007"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}