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. |