Comparison Between RDS and Self-Built Databases¶
Performance¶
Item | Cloud Database RDS | Self-Built Database Service |
|---|---|---|
Service availability | For details, see the Elastic Cloud Service User Guide. | Requires device procurement, primary/standby relationship setup, and RAID setup. |
Data reliability | For more information, see the Elastic Volume Service User Guide. | Requires device procurement, primary/standby relationship setup, and RAID setup. |
System security | Defends against Anti-DDoS attacks and promptly repairs database security vulnerabilities. | Requires procurement of expensive devices and software, as well as manual detection and repair of security vulnerabilities. |
Database backup | Supports automated backups, manual backups, and custom backup retention periods. | Requires device procurement, setup, and maintenance. |
Hardware and software investment | Supports on-demand pricing and scaling without requiring hardware and software investment. | Requires large investment in database servers. The Microsoft SQL Server license must be paid for separately. |
System hosting | Not required. | Requires two servers for primary/standby DB instances. |
Maintenance cost | Not required. | Requires large manpower investment and professional database administrator (DBA) for maintenance. |
Deployment and scaling | Supports elastic scaling, fast upgrade, and on-demand enabling. | Requires procurement, deployment, and coordination of hardware that matches original devices. |
Resource utilization | Bills users based on the resources actually used, resulting in 100% resource utilization. | Considers peak traffic, resulting in low resource utilization. |