{"id":3596,"date":"2017-12-23T10:56:11","date_gmt":"2017-12-23T10:56:11","guid":{"rendered":"http:\/\/www.scmgalaxy.com\/tutorials\/?p=3596"},"modified":"2021-02-27T09:15:33","modified_gmt":"2021-02-27T09:15:33","slug":"aws-storage-faq","status":"publish","type":"post","link":"https:\/\/www.scmgalaxy.com\/tutorials\/aws-storage-faq\/","title":{"rendered":"AWS Storage FAQ"},"content":{"rendered":"<p><strong>What data is stored in ephemeral storage of an Amazon EC2 instance?<\/strong><\/p>\n<p>Anything that is not stored on an ebs volume that is mounted to the instance will be lost. For instance, if you mount your ebs volume at \/mystuff, then anything not in \/mystuff will be lost. If you don&#8217;t mount an ebs volume and save stuff on it, then I believe everything will be lost.<\/p>\n<p>You can create an AMI from your current machine state, which will contain everything in your ephemeral storage. Then, when you launch a new instance based on that AMI it will contain everything as it is now.<\/p>\n<p><strong>Meaning of &#8220;Warning: Please note that any data on the ephemeral storage of your instance will be lost when it is stopped&#8221;<\/strong><\/p>\n<p>There is a difference between &#8220;stop&#8221; and &#8220;terminate&#8221;. If you &#8220;stop&#8221; an instance that is backed by EBS then the information on the root volume will still be in the same state when you &#8220;start&#8221; the machine again.<\/p>\n<p>Basically, root volume (your entire virtual system disk) is ephemeral, but only if you choose to create AMI backed by Amazon EC2 instance store.<\/p>\n<p>If you choose to create AMI backed by EBS then your root volume is backed by EBS and everything you have on your root volume will be saved between reboots.<\/p>\n<p>If you are not sure what type of volume you have, look under EC2-&gt;Elastic Block Store-&gt;Volumes in your AWS console and if your AMI root volume is listed there then you are safe. Also, if you go to EC2-&gt;Instances and then look under column &#8220;Root Device&#8221; of your instance and if it says &#8220;ebs&#8221;, then you don&#8217;t have to worry about data on your root device.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>What data is stored in ephemeral storage of an Amazon EC2 instance? Anything that is not stored on an ebs [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_joinchat":[],"footnotes":""},"categories":[1862],"tags":[162,1860,1864,1869,1863],"class_list":["post-3596","post","type-post","status-publish","format-standard","hentry","category-amazon-web-services","tag-aws","tag-ebs","tag-ephemeral","tag-faq","tag-storage"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>AWS Storage FAQ - scmGalaxy<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.scmgalaxy.com\/tutorials\/aws-storage-faq\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"AWS Storage FAQ - scmGalaxy\" \/>\n<meta property=\"og:description\" content=\"What data is stored in ephemeral storage of an Amazon EC2 instance? 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