<p>The following figure describes the correlation relationship between Relational Database Service (RDS) and other cloud services.&nbsp;</p> <p><img src="https://obs-cn-shanghai.yun.pingan.com/pcp-portal/20200107153656-1e9daa339d45.png" style="height:480px; width:566px" /></p> <table border="1" cellpadding="0" cellspacing="0"> <tbody> <tr> <td style="background-color:#ededed; vertical-align:top"> <p><strong>Cloud service name</strong></p> </td> <td style="background-color:#ededed; vertical-align:top"> <p><strong>Description of correlation relationship</strong></p> </td> </tr> <tr> <td style="vertical-align:top"> <p>Elastic Compute Service (ECS)</p> </td> <td style="vertical-align:top"> <p>For the purpose of security, you can connect to an RDS instances only from an ECS host. Currently, you cannot connect to RDS instances from Internet.</p> </td> </tr> <tr> <td style="vertical-align:top"> <p>Elastic Cache Redis</p> </td> <td style="vertical-align:top"> <p>Redis provides persistent memory database service. In the scenarios with a large number of business visits, you can use ECS, RDS, and Redis together to reduce response time for read requests.</p> </td> </tr> <tr> <td style="vertical-align:top"> <p>Data Transmission Service (DTS)</p> </td> <td style="vertical-align:top"> <p>DTS is an easy-to-use, stable, and efficient data transmission service. You can use DTS to migrate local databases to the cloud.</p> </td> </tr> <tr> <td style="vertical-align:top"> <p>Database Backup &amp; Recovery Service (DBRS)</p> </td> <td style="vertical-align:top"> <p>Based on storage snapshot technology, DBRS provides backup services for database instances, such as RDS PostgreSQL, RDS MySQL, and DDS instances.</p> <p>You can back up data in the database based on the backup strategy. When data loss occurs, you can use DBRS to recover business data at any time to ensure data safety.</p> </td> </tr> <tr> <td style="vertical-align:top"> <p>Argus</p> </td> <td style="vertical-align:top"> <p>Argus allows you to view performance views and alarm records of databases and customize monitoring configuration on vital resources, helping you control real-time resource usage and ensuring stable business operation.</p> </td> </tr> </tbody> </table>