{"id":3251,"date":"2019-09-02T11:22:49","date_gmt":"2019-09-02T11:22:49","guid":{"rendered":"https:\/\/www.testpreptraining.com\/tutorial\/?page_id=3251"},"modified":"2020-05-02T05:29:41","modified_gmt":"2020-05-02T05:29:41","slug":"rds-overview","status":"publish","type":"page","link":"https:\/\/www.testpreptraining.ai\/tutorial\/aws-certified-solutions-architect-professional-sap-c01\/rds-overview\/","title":{"rendered":"RDS Overview"},"content":{"rendered":"\n<ul class=\"wp-block-list\"><li>Expands to Relational Database Service<\/li><li>Traditional relational databases that include\ntables, rows, fields<\/li><li>On-Line Transaction Processing (OLTP) type DB<\/li><li>You can copy a snapshot to another region if you\nwant to have database available in another region<\/li><li>You scale DB by taking a snapshot and doing a\nrestore to a larger sized tier<\/li><li>Eliminates much of relational database management<\/li><li>Can be scaled independently<ul><li>CPU<\/li><\/ul><ul><li>memory<\/li><\/ul><ul><li>storage<\/li><\/ul><ul><li>IOPS&nbsp; <\/li><\/ul><\/li><li>AWS manages <ul><li>backups<\/li><\/ul><ul><li>software\npatching<\/li><\/ul><ul><li>automatic\nfailure detection<\/li><\/ul><ul><li>recovery<\/li><\/ul><\/li><li>Can trigger, manual or automated backups <\/li><li>It provides high availability with primary\ninstance which if fails, switch to secondary instance <\/li><li>Has a soft limit of 40 Amazon RDS DB instances\nper account<\/li><li>From 40, up to 10 can be Oracle or Microsoft SQL\nServer DB instances under the License Included model. <\/li><li>Customers can Bring Own License (BYOL) model to\nhave all 40 DB instances for Oracle or Microsoft SQL Server<\/li><li>Supports database engines<ul><li>MySQL<\/li><\/ul><ul><li>MariaDB<\/li><\/ul><ul><li>PostgreSQL<\/li><\/ul><ul><li>Oracle<\/li><\/ul><ul><li>Microsoft\nSQL Server<\/li><\/ul><ul><li>MySQL-compatible\nAmazon Aurora <\/li><\/ul><ul><li>AWS\nIAM controls AWS resources access to Amazon RDS databases.<\/li><\/ul><\/li><li>For security <ul><li>put\ndatabase in an Amazon Virtual Private Cloud (Amazon VPC) <\/li><\/ul><ul><li>using\nSecure Sockets Layer (SSL) for data in transit <\/li><\/ul><ul><li>Using\nencryption for data at rest<\/li><\/ul><\/li><li>RDS APIs and the AWS Management Console provide\na management interface that allows you to create, delete, modify, and terminate\nRDS DB instances; to create DB snapshots; and to perform point-in-time restores<\/li><li>There is no AWS data API for Amazon RDS.<\/li><li>Once a database is created, RDS provides a DNS\nendpoint for the database which can be used to connect to the database.<\/li><li>Endpoint does not change over the lifetime of\nthe instance even during the failover in case of Multi-AZ configuration<\/li><li>RDS leverages Amazon EBS volumes as its data\nstore<\/li><li>RDS provides database backups, which are\nreplicated across multiple AZ\u2019s<\/li><li>RDS Multi AZ\u2019s feature synchronously replicate\ndata between a primary RDS DB instance and a standby instance in another\nAvailability Zone, which prevents data loss,<\/li><li>RDS provides a DNS endpoint and in case of an\nfailure on the primary, it automatically fails over to the standby instance<\/li><li>RDS also allows Read replicas for the supported\ndatabases, which are replicated asynchronously<\/li><li>RDS Provisioned IOPS, where the IOPS can be\nspecified when the instance is launched and is guaranteed over the life of the\ninstance<\/li><\/ul>\n\n\n\n<p><strong><span style=\"text-decoration: underline;\">AWS RDS limits per region<\/span><\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><td>\n   <strong>Resource<\/strong>\n   <\/td><td>    <strong>Default Limit<\/strong>    <\/td><\/tr><\/thead><tbody><tr><td>\n  Cross-region snapshots copy\n  requests\n  <\/td><td>\n  5\n  <\/td><\/tr><tr><td>\n  DB Instances\n  <\/td><td>\n  40\n  <\/td><\/tr><tr><td>\n  Event subscriptions\n  <\/td><td>\n  20\n  <\/td><\/tr><tr><td>\n  Manual snapshots\n  <\/td><td>\n  100\n  <\/td><\/tr><tr><td>\n  Option groups\n  <\/td><td>\n  20\n  <\/td><\/tr><tr><td>\n  Parameter groups\n  <\/td><td>\n  50\n  <\/td><\/tr><tr><td>\n  Read replicas per master\n  <\/td><td>\n  5\n  <\/td><\/tr><tr><td>\n  Reserved instances\n  <\/td><td>\n  40\n  <\/td><\/tr><tr><td>\n  Rules per DB security group\n  <\/td><td>\n  20\n  <\/td><\/tr><tr><td>\n  Rules per VPC security group\n  <\/td><td>\n  50 inbound 50 outbound\n  <\/td><\/tr><tr><td>\n  DB Security groups\n  <\/td><td>\n  25\n  <\/td><\/tr><tr><td>\n  VPC Security groups\n  <\/td><td>\n  5\n  <\/td><\/tr><tr><td>\n  Subnet groups\n  <\/td><td>\n  50\n  <\/td><\/tr><tr><td>\n  Subnets per subnet group\n  <\/td><td>\n  20\n  <\/td><\/tr><tr><td>\n  Tags per resource\n  <\/td><td>\n  50\n  <\/td><\/tr><tr><td>\n  Total storage for all DB instances\n  <\/td><td>\n  100 TiB\n  <\/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-77-590x400.png\" alt=\"\" class=\"wp-image-3469\" srcset=\"https:\/\/www.testpreptraining.ai\/tutorial\/wp-content\/uploads\/2019\/09\/image-77-590x400.png 590w, https:\/\/www.testpreptraining.ai\/tutorial\/wp-content\/uploads\/2019\/09\/image-77.png 624w\" sizes=\"auto, (max-width: 590px) 100vw, 590px\" \/><\/figure><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Expands to Relational Database Service Traditional relational databases that include tables, rows, fields On-Line Transaction Processing (OLTP) type DB You can copy a snapshot to another region if you want to have database available in another region You scale DB by taking a snapshot and doing a restore to a larger sized tier Eliminates much&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":2471,"menu_order":50,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"categories":[2],"tags":[7,568],"class_list":["post-3251","page","type-page","status-publish","hentry","category-amazon-aws","tag-aws","tag-rds-overview"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>RDS Overview - 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-certified-solutions-architect-professional-sap-c01\/rds-overview\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"RDS Overview - Testprep 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