Managing MongoDB yourself means owning the full operations stack: hardware procurement, replica set configuration, RAID setup, security patching, capacity planning, and 24/7 incident response. ApsaraDB for MongoDB handles that infrastructure so your team can focus on application development. The table below compares the two approaches across eight dimensions.
| Dimension | ApsaraDB for MongoDB | Self-managed database |
|---|---|---|
| Service availability | Built-in high availability with automatic failover. Supports disaster recovery (DR) across one or three zones in the same region. Geo-disaster recovery instances are available for cross-region protection. | You must build and maintain primary/secondary replication and RAID. Zone-level DR requires self-deployment; dual-zone setups are difficult to implement and database-level availability is not guaranteed. Cross-region DR requires a third-party tool. |
| Data reliability | High reliability. The recovery point objective (RPO) of single- and three-zone replica set instances is 0. | You must set up primary/secondary replication and RAID and take responsibility for data durability. |
| System security | Pre-protection: DDoS protection, automatic repair of database security vulnerabilities, whitelist-based access control, and VPC isolation. In-process protection: SSL encryption and Transparent data encryption (TDE). The SQL Audit feature is provided. For details, see View audit logs. | Pre-protection: requires additional security hardware or software at high cost. In-process protection: you must build SSL encryption and TDE systems. Auditing: requires purchasing a separate audit system. |
| Backup and restoration | A complete kernel supports both physical backup and logical backup in manual backup, with backup efficiency three times higher than open-source. Single-database recovery is supported. | The open-source version supports only logical backup and is slower. Single-database recovery is unavailable. In distributed architectures, you must manually verify data recovery accuracy. |
| System hosting | No hosting fees. | Server hosting fees apply. The more complex your architecture, the more servers you host and the higher the cost. |
| Operations and maintenance (O&M) cost | No dedicated operations staff required. CloudDBA provides intelligent diagnosis: Performance trends, Real-time performance, Instance sessions, Slow query logs, and Storage analysis. | Requires dedicated database administrators and high ongoing O&M costs. No built-in performance diagnosis; slow query troubleshooting is complex and time-consuming. |
| Deployment and scaling | Instances activate instantly. Auto scaling is supported. | Requires hardware procurement, data center hosting, and machine deployment. Adding nodes requires manually maintaining node relationships. |
| Kernel optimization |
| The open-source version has no kernel-level optimization and cannot be used in some scenarios. |