{"id":2913,"date":"2019-08-30T09:37:21","date_gmt":"2019-08-30T09:37:21","guid":{"rendered":"https:\/\/www.testpreptraining.com\/tutorial\/?page_id=2913"},"modified":"2020-05-01T10:48:25","modified_gmt":"2020-05-01T10:48:25","slug":"rds-3","status":"publish","type":"page","link":"https:\/\/www.testpreptraining.ai\/tutorial\/aws-certified-developer-associate\/rds-3\/","title":{"rendered":"RDS"},"content":{"rendered":"\n<ul class=\"wp-block-list\"><li>Expands to Relational Database Service<\/li><li>Eliminates much of relational database management<\/li><li>Can be scaled independently\n<ul>\n<li>CPU<\/li>\n<\/ul>\n<ul>\n<li>memory<\/li>\n<\/ul>\n<ul>\n<li>storage<\/li>\n<\/ul>\n<ul>\n<li>IOPS&nbsp;<\/li>\n<\/ul>\n<\/li><li>AWS manages\n<ul>\n<li>backups<\/li>\n<\/ul>\n<ul>\n<li>software patching<\/li>\n<\/ul>\n<ul>\n<li>automatic failure detection<\/li>\n<\/ul>\n<ul>\n<li>recovery<\/li>\n<\/ul>\n<\/li><li>Can trigger, manual or automated backups<\/li><li>It provides high availability with primary instance which if fails, switch to secondary instance<\/li><li>Has a soft limit of 40 Amazon RDS DB instances per account<\/li><li>From 40, up to 10 can be Oracle or Microsoft SQL Server DB instances under the License Included model.<\/li><li>Customers can Bring Your Own License (BYOL) model to have all 40 DB instances for Oracle or Microsoft SQL Server<\/li><li>Supports database engines\n<ul>\n<li>MySQL<\/li>\n<\/ul>\n<ul>\n<li>MariaDB<\/li>\n<\/ul>\n<ul>\n<li>PostgreSQL<\/li>\n<\/ul>\n<ul>\n<li>Oracle<\/li>\n<\/ul>\n<ul>\n<li>Microsoft SQL Server<\/li>\n<\/ul>\n<ul>\n<li>MySQL-compatible Amazon Aurora<\/li>\n<\/ul>\n<ul>\n<li>AWS IAM controls AWS resources access to Amazon RDS databases.<\/li>\n<\/ul>\n<\/li><li>For security\n<ul>\n<li>put database in an Amazon Virtual Private Cloud (Amazon VPC)<\/li>\n<\/ul>\n<ul>\n<li>using Secure Sockets Layer (SSL) for data in transit<\/li>\n<\/ul>\n<ul>\n<li>Using encryption for data at rest<\/li>\n<\/ul>\n<\/li><li>RDS Management by\n<ul>\n<li>RDS APIs<\/li>\n<\/ul>\n<ul>\n<li>AWS Management Console<\/li>\n<\/ul>\n<ul>\n<li>Both are used to\n<ul>\n<li>Create RDS DB instances<\/li>\n<\/ul>\n<ul>\n<li>Delete RDS DB instances<\/li>\n<\/ul>\n<ul>\n<li>Modify RDS DB instances<\/li>\n<\/ul>\n<ul>\n<li>terminate RDS DB instances<\/li>\n<\/ul>\n<ul>\n<li>create DB snapshots<\/li>\n<\/ul>\n<ul>\n<li>perform restores<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul>\n<li>Amazon RDS has no data API<\/li>\n<\/ul>\n<\/li><li>DNS endpoint is given for database connection after database creation<\/li><li>Endpoint does not change over the lifetime of the instance even during the failover in case of Multi-AZ configuration<\/li><li>EBS volumes are used as data store by RDS<\/li><li>database backups in RDS are replicated in multiple AZs\n<ul>\n<li>synchronous replication is done amongst primary and standby instance<\/li>\n<\/ul>\n<\/li><li>DNS endpoint switches to standby instance during primary failure<\/li><li>Read replicas are also provided by RDS\n<ul>\n<li>asynchronous replication is done<\/li>\n<\/ul>\n<ul>\n<li>only for supported databases<\/li>\n<\/ul>\n<\/li><li>RDS Provisioned IOPS, where the IOPS can be specified when the instance is launched and is guaranteed over the life of the instance<\/li><\/ul>\n\n\n\n<p>AWS RDS limits per region<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Resource<\/strong><\/td><td><strong>Default Limit<\/strong><\/td><\/tr><tr><td>Maximum Cross-region snapshots copy requests<\/td><td>5<\/td><\/tr><tr><td>Maximum DB Instances<\/td><td>40<\/td><\/tr><tr><td>Maximum Event subscriptions<\/td><td>20<\/td><\/tr><tr><td>Total Manual snapshots<\/td><td>100<\/td><\/tr><tr><td>Count of Option groups<\/td><td>20<\/td><\/tr><tr><td>Count of Parameter groups<\/td><td>50<\/td><\/tr><tr><td>Count of Read replicas per master<\/td><td>5<\/td><\/tr><tr><td>Count of Reserved instances<\/td><td>40<\/td><\/tr><tr><td>Count of Rules\/DB security group<\/td><td>20<\/td><\/tr><tr><td>Count of Rules\/VPC security group<\/td><td>50 inbound 50 outbound<\/td><\/tr><tr><td>Count of DB Security groups<\/td><td>25<\/td><\/tr><tr><td>Count of VPC Security groups<\/td><td>5<\/td><\/tr><tr><td>Count of Subnet groups<\/td><td>50<\/td><\/tr><tr><td>Count of Subnets per subnet group<\/td><td>20<\/td><\/tr><tr><td>Count of Tags\/resource<\/td><td>50<\/td><\/tr><tr><td>Total storage for all DB instances<\/td><td>100 TiB<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"590\" height=\"400\" src=\"https:\/\/www.testpreptraining.ai\/tutorial\/wp-content\/uploads\/2019\/09\/image-216-590x400.png\" alt=\"\" class=\"wp-image-3885\" srcset=\"https:\/\/www.testpreptraining.ai\/tutorial\/wp-content\/uploads\/2019\/09\/image-216-590x400.png 590w, https:\/\/www.testpreptraining.ai\/tutorial\/wp-content\/uploads\/2019\/09\/image-216.png 624w\" sizes=\"auto, (max-width: 590px) 100vw, 590px\" \/><\/figure><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Expands to Relational Database Service Eliminates much of relational database management Can be scaled independently CPU memory storage IOPS&nbsp; AWS manages backups software patching automatic failure detection recovery Can trigger, manual or automated backups It provides high availability with primary instance which if fails, switch to secondary instance Has a soft limit of 40 Amazon&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":2476,"menu_order":27,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"categories":[],"tags":[7,324],"class_list":["post-2913","page","type-page","status-publish","hentry","tag-aws","tag-rds"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>RDS Tutorials | AWS | 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