{"id":603,"date":"2018-09-18T09:26:13","date_gmt":"2018-09-18T06:26:13","guid":{"rendered":"https:\/\/blog.arcak.net\/?p=597"},"modified":"2018-09-18T15:04:53","modified_gmt":"2018-09-18T12:04:53","slug":"vmware-vsan-capacity-sizing","status":"publish","type":"post","link":"https:\/\/blog.arcak.net\/index.php\/2018\/09\/18\/vmware-vsan-capacity-sizing\/","title":{"rendered":"VMware vSan Capacity Sizing"},"content":{"rendered":"

You will naturally like to see what equipment you need and what enhancements you can make with these needs before you invest for a new vSan<\/strong> Environment<\/p>\n

There are several manufacturer tools that I share links with below that you can perform automatically.<\/p>\n

Click\u00a0here<\/a>\u00a0<\/strong>for vSan Readynode Sizer <\/strong>and here<\/strong><\/a> for\u00a0Vxrail Xpress Sizer<\/strong>.<\/p>\n

So what should you do if you want to do an average calculation without having to depend on these tools?<\/h2>\n

<\/p>\n

Let’s say the capacity you need is 10 TB<\/strong>;<\/p>\n

We must multiply this capacity by the following coefficients, depending on the type of RAID<\/strong> desired. As I mentioned in the my previous article here<\/strong><\/a>,\u00a0RAID<\/strong>\u00a0types in\u00a0vSAN<\/strong> environment <\/strong>maybe implemented as Datastore<\/strong> Default<\/strong>, per-VM<\/strong> and per<\/strong>–vmdk<\/strong>. So when you do these calculations put\u00a0you will have X VM<\/strong>\u00a0RAID, 5x VM<\/strong>\u00a0RAID5 <\/strong>into account to\u00a0achieve more accurate results.<\/p>\n

RAID coefficients;<\/strong><\/p>\n

RAID1<\/strong> = 2 (Min.<\/strong> 3 server or 2 servers and Witness node)<\/p>\n

RAID5<\/strong> = 1.33 (Min.<\/strong> 4 Server and All-Flash)<\/p>\n

Ra\u0131d6<\/strong> = 1.25 (Min.<\/strong> 6 server and All-Flash)<\/p>\n

Let’s say we have 10TB<\/strong> net capacity requirement with RAID1<\/strong> and all-flash<\/strong>. Only the All-Flash<\/strong> environment supports\u00a0Deduplication and Compression<\/strong> feature.<\/p>\n

10TB x 2 = 20TB<\/strong><\/p>\n

Deduplication & Compression<\/strong> coefficients can be used between 1.5<\/strong> a<\/strong>nd 2<\/strong> depending on the data type. This property is an achievement unlike the raid, so the value obtained in the previous calculation is divided into this coefficient.<\/p>\n

Consider it 1.5<\/strong>, given that the data is not well to be deduped and compressed.<\/p>\n

20TB\/1.5 = 13.33 TB<\/strong><\/p>\n

It is not recommended to fill the vSAN<\/strong> environment more than 70%<\/strong>, so 30% Slack Space<\/strong> must be added just incase on the calculated capacity. (The tests I made in the test environment continued to operate\u00a0 even in 95% of the capacity. Testing in Production environment is not recommended!<\/strong>)<\/p>\n

13.33 tb x 1.30 = 17.33 TB<\/strong><\/p>\n

Considering that capacity is intended to be used in three servers;<\/p>\n

17.33 TB\/3 = 5.78<\/strong> TB The capacity needed per server is needed.<\/p>\n

This 5.78 <\/strong>TB capacity can be supplied with discs of various sizes according to the need.<\/p>\n

More than 1 disk group<\/strong> having more than 1 capacity disks<\/strong> are recommended for both security and performance reasons.<\/p>\n","protected":false},"excerpt":{"rendered":"

You will naturally like to see what equipment you need and what enhancements you can make with these needs before you invest for a new vSan Environment There are several manufacturer tools that I share links with below that you can perform automatically. Click\u00a0here\u00a0for vSan Readynode Sizer and here for\u00a0Vxrail Xpress Sizer. So what should […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[193,165,167],"tags":[],"class_list":["post-603","post","type-post","status-publish","format-standard","hentry","category-hyperconverged-infrastructure","category-virtualization","category-vmware"],"_links":{"self":[{"href":"https:\/\/blog.arcak.net\/index.php\/wp-json\/wp\/v2\/posts\/603"}],"collection":[{"href":"https:\/\/blog.arcak.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.arcak.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.arcak.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.arcak.net\/index.php\/wp-json\/wp\/v2\/comments?post=603"}],"version-history":[{"count":6,"href":"https:\/\/blog.arcak.net\/index.php\/wp-json\/wp\/v2\/posts\/603\/revisions"}],"predecessor-version":[{"id":610,"href":"https:\/\/blog.arcak.net\/index.php\/wp-json\/wp\/v2\/posts\/603\/revisions\/610"}],"wp:attachment":[{"href":"https:\/\/blog.arcak.net\/index.php\/wp-json\/wp\/v2\/media?parent=603"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.arcak.net\/index.php\/wp-json\/wp\/v2\/categories?post=603"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.arcak.net\/index.php\/wp-json\/wp\/v2\/tags?post=603"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}