{"id":493,"date":"2013-04-24T11:14:40","date_gmt":"2013-04-24T15:14:40","guid":{"rendered":"http:\/\/rajdude.com\/blog\/?p=493"},"modified":"2013-04-24T11:14:40","modified_gmt":"2013-04-24T15:14:40","slug":"thin-provisioning-savings-in-a-3par-san","status":"publish","type":"post","link":"https:\/\/rajdude.com\/blog\/thin-provisioning-savings-in-a-3par-san\/","title":{"rendered":"Thin provisioning savings in a 3PAR SAN"},"content":{"rendered":"<p>I recently implemented a 3PAR SAN. After migrating 10-15 VMs onto it, I looked at the disk utilization. I was happy to see how good the thin provisioning in the 3PAR SAN\u2019s operating system was working.<\/p>\n<p><strong>Summary:<\/strong><\/p>\n<ul>\n<li>Total space the Hyper-V servers \u201cthink\u201d they have = 1600 GB<\/li>\n<li>Total space the Hyper-V servers \u201cthink\u201d they have <strong>used<\/strong> = 596 GB<\/li>\n<li>Actual space the SAN has reserved for these LUNs =&nbsp; 403 GB <\/li>\n<\/ul>\n<p>So that counts as a savings of around 193GB worth of real disk space (32%). Sweet, eh?)<\/p>\n<p>Full details below.<\/p>\n<p><!--more--><\/p>\n<p>We have three LUNS right now:<\/p>\n<h4><font size=\"4\">LUN# 1<\/font><\/h4>\n<p><b>As seen from SAN:<\/b> <\/p>\n<ul>\n<li>hyperv1p_vol1<\/li>\n<li>Slow Chunklets<\/li>\n<li>Virtual size = 400 GB<\/li>\n<li>Thin Reserved = 124 GB<\/li>\n<\/ul>\n<p><b>As seen from server:<\/b> <\/p>\n<ul>\n<li>Mapped as E: drive<\/li>\n<li>Total space = 400 GB<\/li>\n<li>Free space = 140 GB (35%)<\/li>\n<li>Used space = 260 GB<\/li>\n<li>Number of running VMs on this LUN = 3<\/li>\n<\/ul>\n<h4>LUN # 2<\/h4>\n<p><b>As seen from SAN:<\/b> <\/p>\n<ul>\n<li>hyperv2p_vol1<\/li>\n<li>Fast Chunklets<\/li>\n<li>Virtual size = 600 GB<\/li>\n<li>Thin Reserved = 43 GB<\/li>\n<\/ul>\n<p><b>As seen from server:<\/b> <\/p>\n<ul>\n<li>Mapped as F: drive<\/li>\n<li>Total space = 600 GB<\/li>\n<li>Free space = 547 GB (91%)<\/li>\n<li>Used space = 53 GB<\/li>\n<li>Number of running VMs on this LUN = 2<\/li>\n<\/ul>\n<h4>LUN # 3<\/h4>\n<p><b>As seen from SAN:<\/b> <\/p>\n<ul>\n<li>hyperv2p_vol2<\/li>\n<li>Slow Chunklets<\/li>\n<li>Virtual size = 600 GB<\/li>\n<li>Thin Reserved = 236 GB<\/li>\n<\/ul>\n<p><b>As seen from server:<\/b> <\/p>\n<ul>\n<li>Mapped as G: drive<\/li>\n<li>Total space = 600 GB<\/li>\n<li>Free space = 317 GB (53%)<\/li>\n<li>Used space = 283 GB<\/li>\n<li>Number of running VMs on this LUN = 9 (almost to the limit of 10)<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>I recently implemented a 3PAR SAN. After migrating 10-15 VMs onto it, I looked at the disk utilization. I was happy to see how good the thin provisioning in the 3PAR SAN\u2019s operating system was working. Summary: Total space the Hyper-V servers \u201cthink\u201d they have = 1600 GB Total space the Hyper-V servers \u201cthink\u201d they have used = 596 GB Actual space the SAN has reserved for these LUNs =&nbsp; 403 GB So that counts as a savings of around 193GB worth of real disk space (32%). Sweet, eh?) Full details below.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[75],"class_list":["post-493","post","type-post","status-publish","format-standard","hentry","category-itsys","tag-san"],"_links":{"self":[{"href":"https:\/\/rajdude.com\/blog\/wp-json\/wp\/v2\/posts\/493","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rajdude.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rajdude.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rajdude.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/rajdude.com\/blog\/wp-json\/wp\/v2\/comments?post=493"}],"version-history":[{"count":1,"href":"https:\/\/rajdude.com\/blog\/wp-json\/wp\/v2\/posts\/493\/revisions"}],"predecessor-version":[{"id":494,"href":"https:\/\/rajdude.com\/blog\/wp-json\/wp\/v2\/posts\/493\/revisions\/494"}],"wp:attachment":[{"href":"https:\/\/rajdude.com\/blog\/wp-json\/wp\/v2\/media?parent=493"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rajdude.com\/blog\/wp-json\/wp\/v2\/categories?post=493"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rajdude.com\/blog\/wp-json\/wp\/v2\/tags?post=493"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}