Cloud Service Mapper

Database Migration and Replication

Datastream

Serverless change data capture service that streams database changes to Google Cloud targets for replication and modernization pipelines.

Service information

Datastream

Shortname: Datastream

Huawei equivalent shortnames: DRS

Keywords: replication, database migration, cdc

Differences vs Huawei

Pipeline model differs: Datastream focuses on CDC stream delivery into downstream analytics/processing targets, while DRS focuses on database migration/synchronization/DR task execution.
Pricing model differs: Datastream is metered by processed data volume, while DRS pricing is tied to migration/sync task specification and runtime model.

Migration to Huawei

Map engine/version compatibility, HA topology, replication mode, and backup/restore behavior. For Google Cloud Datastream, the direct Huawei equivalence layer is DRS; validate feature-by-feature parity for control plane, data plane, and operational behavior before cutover.
Use a composed Huawei migration pattern where needed: DRS + RDS + GaussDB. Treat DRS as the core equivalent capability and use the additional services to cover integration, security, observability, and governance gaps.
Pricing model difference: Google Cloud usually bills instance/runtime pricing plus storage, backup, and transfer; Huawei usually bills RDS/GaussDB/DDS runtime or DRS task billing plus storage, backup, and transfer. Recalculate TCO with peak load, request volume, retention period, and cross-region/interconnect traffic before production migration.

Huawei equivalent service

Data Replication Service

Shortname: DRS

General function: Database Migration and Replication

Database migration, synchronization, and disaster recovery service with full-load and incremental replication modes.

Keywords: replication, database migration, cdc