What Kind of Service Data Can Be Migrated Using CDM?
Cloud Data Migration (CDM) implements data mobility by enabling batch data migration among homogeneous and heterogeneous data sources. It supports on-premises and cloud file systems, relational databases, data warehouses, NoSQL, big data, and object storage.
- Table/file migration: It is applicable to data migration to the cloud, data exchange on the cloud, and data migration to on-premises service systems.
- Entire DB migration: It is applicable to database migration to the cloud.
| Category | Data Source | Export | Import |
|---|---|---|---|
| Data warehouse | Data Warehouse Service (DWS) | Supported | Supported |
| Data Lake Insight (DLI) | Not supported | Supported | |
| FusionInsight LibrA | Supported | Supported | |
| Hadoop | MRS HDFS | Supported | Supported |
| MRS HBase | Supported | Supported | |
| MRS Hive | Supported | Supported | |
| FusionInsight HDFS | Supported | Supported | |
| Apache HDFS | Supported | Supported | |
| Hadoop release version | Not supported | Not supported | |
| FusionInsight HBase | Supported | Supported | |
| FusionInsight Hive | Supported | Supported | |
| Apache HBase | Supported | Supported | |
| Apache Hive | Supported | Supported | |
| Object storage | Object Storage Service (OBS) | Supported | Supported |
| Alibaba Cloud Object Storage Service (OSS) | Supported | Not supported | |
| Qiniu Cloud Object Storage (KODO) | Supported | Not supported | |
| Amazon Simple Storage Service (Amazon S3) | Supported | Not supported | |
| Tencent Cloud Object Storage (COS) | Supported | Not supported | |
| File system | FTP | Supported | Supported |
| SFTP | Supported | Supported | |
| HTTP | Supported | Not supported | |
| Network Attached Storage (NAS) | Supported | Supported | |
| Scalable File Service (SFS Turbo) | Supported | Supported | |
| Relational database | RDS for MySQL | Supported | Supported |
| RDS for PostgreSQL | Supported | Supported | |
| RDS for SQL Server | Supported | Supported | |
| Distributed Database Middleware (DDM) | Supported | Not supported | |
| MySQL | Supported | Supported | |
| PostgreSQL | Supported | Supported | |
| Microsoft SQL Server | Supported | Supported | |
| Oracle | Supported | Supported | |
| IBM Db2 | Supported | Supported | |
| Derecho (GaussDB) | Supported | Supported | |
| NewSQL (GaussDB) | Supported | Supported | |
| SAP HANA | Supported | Supported | |
| MYCAT | Supported | Supported | |
| NoSQL | Distributed Cache Service (DCS) | Not supported | Supported |
| Document Database Service (DDS) | Supported | Supported | |
| CloudTable Service (CloudTable) | Supported | Supported | |
| CloudTable OpenTSDB | Supported | Supported | |
| Redis | Supported | Supported | |
| MongoDB | Supported | Supported | |
| Cassandra | Supported | Supported | |
| Search | Cloud Search Service (CSS) | Supported | Supported |
| Elasticsearch | Supported | Supported | |
| Message system | Data Ingestion Service (DIS) | Supported | Supported |
| Apache Kafka | Supported | Supported | |
| MRS Kafka | Supported | Supported | |
| DMS Kafka | Supported | Supported |
- In the preceding table, the non-cloud data sources, such as MySQL, can be the on-premises MySQL, MySQL built on ECSs, or MySQL on the third-party cloud.
- When DIS, Apache Kafka, or DMS Kafka functions as the migration source, CDM can migrate data to only the following types of data sources:
- CSS
- DIS
- Apache Kafka
- DMS Kafka
| Source Data Type | Destination Data Type | |||||
|---|---|---|---|---|---|---|
| RDS for MySQL | MRS (Hive) | DWS | CSS | OBS | CloudTable | |
| MySQL | √ | √ | √ | × | √ | × |
| PostgreSQL | √ | √ | √ | × | √ | × |
| Microsoft SQL Server | √ | √ | √ | × | × | × |
| Oracle | √ | √ | √ | × | √ | × |
| Elasticsearch | × | × | × | √ | × | × |
| MongoDB | × | × | × | × | × | × |
| HBase | × | × | × | × | × | √ |
| IBM Db2 | √ | √ | √ | × | √ | × |
| Derecho (GaussDB) | √ | √ | √ | × | √ | × |
| DDM | √ | √ | √ | × | √ | × |
| SAP HANA | √ | √ | √ | × | √ | × |
| DWS | √ | √ | √ | × | × | × |
| Hive | √ | × | √ | × | × | × |
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