{"id":1801,"date":"2016-08-09T15:18:24","date_gmt":"2016-08-09T14:18:24","guid":{"rendered":"http:\/\/tekhead.it\/blog\/?p=1801"},"modified":"2016-10-09T16:39:01","modified_gmt":"2016-10-09T15:39:01","slug":"amazon-aws-tips-and-gotchas-part-6-dedicated-vpcs","status":"publish","type":"post","link":"http:\/\/tekhead.it\/blog\/2016\/08\/amazon-aws-tips-and-gotchas-part-6-dedicated-vpcs\/","title":{"rendered":"Amazon AWS Tips and Gotchas \u2013 Part 6 \u2013 AWS Dedicated VPCs"},"content":{"rendered":"<p>Continuing in this series of blog posts taking a bit of a \u201cwarts and all\u201d view of a few Amazon AWS features, below are a handful more tips and gotchas when designing and implementing solutions on Amazon AWS, including Dedicated VPCs.<\/p>\n<p>For the first post in this series with a bit of background on where it all originated from, see here:<br \/>\n<a href=\"http:\/\/tekhead.it\/blog\/2016\/02\/amazon-aws-tips-and-gotchas-part-1\/\" target=\"_blank\">Amazon #AWS Tips and Gotchas \u2013 Part 1<\/a><\/p>\n<p>For more posts in this series, see here:<br \/>\n<a href=\"http:\/\/tekhead.it\/blog\/2016\/07\/index-of-tekhead-it-blog-posts-on-amazon-aws\/#gotchas\" target=\"_blank\">Index of AWS Tips and Gotchas<\/a><\/p>\n<h4><b>AWS Tips and Gotchas \u2013 Part 6<\/b><\/h4>\n<h5><strong>12. AWS Dedicated VPCs<\/strong><\/h5>\n<p>Just a quick one this week, specifically something to watch out for otherwise you risk running up a scary bill very quickly!<\/p>\n<p>When you create a new VPC, you have the option to create it as <em>Default<\/em> or <em>Dedicated<\/em> as per the screenshot below:<\/p>\n<p><a href=\"http:\/\/tekhead.it\/wp-uploads\/www.tekhead.org\/2016\/04\/vpc1.png\" rel=\"attachment wp-att-1802\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-1802 size-full\" src=\"http:\/\/tekhead.it\/wp-uploads\/www.tekhead.org\/2016\/04\/vpc1.png\" alt=\"AWS Dedicated VPCs\" width=\"480\" height=\"221\" srcset=\"http:\/\/tekhead.it\/wp-uploads\/www.tekhead.org\/2016\/04\/vpc1.png 480w, http:\/\/tekhead.it\/wp-uploads\/www.tekhead.org\/2016\/04\/vpc1-150x69.png 150w, http:\/\/tekhead.it\/wp-uploads\/www.tekhead.org\/2016\/04\/vpc1-300x138.png 300w\" sizes=\"auto, (max-width: 480px) 100vw, 480px\" \/><\/a><\/p>\n<p>Now here&#8217;s the rub&#8230; if you select dedicated VPC, this will actually cause every single EC2 instance from then on to be created on dedicated hardware (what AWS call single-tenant hardware, i.e. dedicated physical servers!)\u00a0by default, within that VPC.<\/p>\n<p>Also note that as per the <a href=\"http:\/\/docs.aws.amazon.com\/AmazonVPC\/latest\/UserGuide\/dedicated-instance.html#dedicated-howitworks\" target=\"_blank\">Dedicated Instances KB article<\/a>, &#8220;You can&#8217;t change the instance tenancy of a VPC after you create it&#8221;.<\/p>\n<p>In other words, if you find you have created your VPC as a dedicated one, you will have to destroy and re-create everything within that VPC to get it back to default (i.e. multi-tenant\/shared compute).<\/p>\n<p><a href=\"http:\/\/tekhead.it\/wp-uploads\/www.tekhead.org\/2016\/08\/awsinvoice.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-1906 size-medium\" src=\"http:\/\/tekhead.it\/wp-uploads\/www.tekhead.org\/2016\/08\/awsinvoice-200x300.jpg\" alt=\"AWS Dedicated VPCs invoice\" width=\"200\" height=\"300\" srcset=\"http:\/\/tekhead.it\/wp-uploads\/www.tekhead.org\/2016\/08\/awsinvoice-200x300.jpg 200w, http:\/\/tekhead.it\/wp-uploads\/www.tekhead.org\/2016\/08\/awsinvoice-100x150.jpg 100w, http:\/\/tekhead.it\/wp-uploads\/www.tekhead.org\/2016\/08\/awsinvoice.jpg 429w\" sizes=\"auto, (max-width: 200px) 100vw, 200px\" \/><\/a>Anyhoo, I said it was just a quick one this week&#8230;<\/p>\n<p>Find\u00a0more posts in this series here:<br \/>\n<a href=\"http:\/\/tekhead.it\/blog\/2016\/07\/index-of-tekhead-it-blog-posts-on-amazon-aws\/#gotchas\" target=\"_blank\">Index of AWS Tips and Gotchas<\/a><\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"Mg6kimJqNb\"><p><a href=\"https:\/\/tekhead.it\/blog\/2016\/08\/amazon-aws-tips-and-gotchas-part-7\/\">Amazon AWS Tips and Gotchas &#8211; Part 7 &#8211; AWS EMR, Spot Instances &#038; PGs<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"&#8220;Amazon AWS Tips and Gotchas &#8211; Part 7 &#8211; AWS EMR, Spot Instances &#038; PGs&#8221; &#8212; Tekhead.it\" src=\"https:\/\/tekhead.it\/blog\/2016\/08\/amazon-aws-tips-and-gotchas-part-7\/embed\/#?secret=prbLTwEzxF#?secret=Mg6kimJqNb\" data-secret=\"Mg6kimJqNb\" width=\"590\" height=\"332\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Continuing in this series of blog posts taking a bit of a \u201cwarts and all\u201d view of a few Amazon AWS features, below are a handful more tips [..]<\/p>\n","protected":false},"author":1,"featured_media":1549,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"Dedicated VPCs","_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"AWS is awesome, but this series describes common issues you may come across and provides tips, workarounds & fixes. Part 6 covers AWS Dedicated VPCs.","jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":true,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"New Blog Post: Amazon #AWS Tips and Gotchas \u2013 Part 6 \u2013 Dedicated VPCs","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[688,725],"tags":[270,709,699,706,707,223,883,884,57,190,548,710,66,56,717],"class_list":["post-1801","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-aws","category-cloud","tag-amazon","tag-architecture","tag-aws","tag-awsgotchas","tag-awstips","tag-cloud","tag-dedicated","tag-dedicated-instances","tag-education","tag-networking","tag-security","tag-solution-architect","tag-tips","tag-training","tag-vpc"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"http:\/\/tekhead.it\/wp-uploads\/www.tekhead.org\/2016\/02\/amazon-web-services-logo.png","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p2l3lU-t3","amp_enabled":true,"_links":{"self":[{"href":"http:\/\/tekhead.it\/blog\/wp-json\/wp\/v2\/posts\/1801","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/tekhead.it\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/tekhead.it\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/tekhead.it\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/tekhead.it\/blog\/wp-json\/wp\/v2\/comments?post=1801"}],"version-history":[{"count":1,"href":"http:\/\/tekhead.it\/blog\/wp-json\/wp\/v2\/posts\/1801\/revisions"}],"predecessor-version":[{"id":1953,"href":"http:\/\/tekhead.it\/blog\/wp-json\/wp\/v2\/posts\/1801\/revisions\/1953"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/tekhead.it\/blog\/wp-json\/wp\/v2\/media\/1549"}],"wp:attachment":[{"href":"http:\/\/tekhead.it\/blog\/wp-json\/wp\/v2\/media?parent=1801"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/tekhead.it\/blog\/wp-json\/wp\/v2\/categories?post=1801"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/tekhead.it\/blog\/wp-json\/wp\/v2\/tags?post=1801"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}