• Relational Database Service

rds
  1. Help Center
  2. Relational Database Service
  3. User Guide
  4. Introduction
  5. Advantages
  6. Comparison Between RDS and Self-Built Databases

Comparison Between RDS and Self-Built Databases

Performance

Item

Cloud Database RDS

Self-Built Database Service

Service availability

See ECS documentation.

Requires device procurement, primary/standby relationship setup, and RAID setup.

Data reliability

See EVS documentation.

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.

If a 2U server and primary/standby DB instances are required, you need to purchase and set up two servers.

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

Charges users based on the resources actually used, resulting in 100% resource utilization.

Considers peak traffic, resulting in low resource utilization.