{"id":2232,"date":"2019-08-22T10:49:30","date_gmt":"2019-08-22T10:49:30","guid":{"rendered":"https:\/\/www.testpreptraining.com\/tutorial\/?page_id=2232"},"modified":"2020-05-02T07:45:48","modified_gmt":"2020-05-02T07:45:48","slug":"auto-scaling-groups","status":"publish","type":"page","link":"https:\/\/www.testpreptraining.ai\/tutorial\/aws-devops-engineer\/auto-scaling-groups\/","title":{"rendered":"Auto Scaling Groups"},"content":{"rendered":"\n<ul class=\"wp-block-list\"><li>It contains a collection of Amazon EC2 instances <\/li><li>All instances are treated as single logical group<\/li><li>Grouping helps in automatic scaling and management. <\/li><li>Following EC2 Auto Scaling features are applied on all instances in the group<ul><li>health check replacements <\/li><\/ul><ul><li>scaling policies.<\/li><\/ul><\/li><li>Group size depends on count of instances as per desired capacity. <\/li><li>Can adjust group size to meet demand, either manually or by using automatic scaling.<\/li><li>Group starts by launching enough instances as per capacity. <\/li><li>Group maintains capacity by conducting health checks periodically on instances<\/li><li>Group maintains fixed number of instances even if instance becomes unhealthy. <\/li><li>Unhealthy instance is terminated by group and another one is launched&nbsp; <\/li><li>Scaling policies dynamically increase or decrease instances in group to address need<\/li><li>Scaling policy adjusts capacity between minimum and maximum capacity values <\/li><li>Group can also launch On-Demand Instances, Spot Instances, or both.<\/li><li>Availability of spot instances varies<\/li><li>If multiple Availability Zones are specified during instance launch, capacity is distributed across these Availability Zones.<\/li><\/ul>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"549\" height=\"172\" src=\"https:\/\/www.testpreptraining.ai\/tutorial\/wp-content\/uploads\/2019\/08\/image-164.png\" alt=\"\" class=\"wp-image-2233\"\/><\/figure>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>It contains a collection of Amazon EC2 instances All instances are treated as single logical group Grouping helps in automatic scaling and management. Following EC2 Auto Scaling features are applied on all instances in the group health check replacements scaling policies. Group size depends on count of instances as per desired capacity. Can adjust group&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":2084,"menu_order":41,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"categories":[2],"tags":[414,7,372,380],"class_list":["post-2232","page","type-page","status-publish","hentry","category-amazon-aws","tag-auto-scaling-groups","tag-aws","tag-devops","tag-devops-engineer"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Auto Scaling Groups - Testprep Training Tutorials<\/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.testpreptraining.ai\/tutorial\/aws-devops-engineer\/auto-scaling-groups\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Auto Scaling Groups - Testprep Training Tutorials\" \/>\n<meta property=\"og:description\" content=\"It contains a collection of Amazon EC2 instances All instances are treated as single logical group Grouping helps in automatic scaling and management. 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