Migration Solution Overview
DDS provides multiple solutions to migrate data between MongoDB databases.
Migration Tools
| Tool | Description | Billing | Reference |
|---|---|---|---|
| DRS (recommended) | Data Replication Service (DRS) provides real-time data migration and synchronization between databases. It is easy to use and can complete a migration task in minutes. It helps reduce both DBA workloads and hardware expenses. | Pay-per-use For details, see Billing. | |
| mongoexport and mongoimport | mongoexport and mongoimport are built-in backup and restoration tools provided with a MongoDB client. You can install a MongoDB client on your local device or on an ECS and use the mongoexport and mongoimport tools to migrate self‑managed MongoDB databases or MongoDB databases from other cloud providers to a Huawei Cloud DDS instance. | Free of charge | For details, see Installing MongoDB Migration Tools. |
Migration Solutions
| Scenario | Migration Tools | Migration Type | Guidance |
|---|---|---|---|
| Migrating data using the export and import tools | mongoexport and mongoimport | Full migration | |
| Migrating data from MongoDB databases of other cloud providers to DDS | DRS | Full+incremental migration | |
| Migrating data from on-premises MongoDB to DDS | DRS | Full+incremental migration | |
| Migrating data from ECS-hosted MongoDB to DDS | DRS | Full+incremental migration | |
| Migrating data from DDS to user-managed MongoDB | DRS | Full+incremental migration |
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