Dual-region storage

Stay organized with collections Save and categorize content based on your preferences.

Go to examples

Dual-region storage lets users specify two regions within the same continent to create a dual-region of their choosing.

The expanded dual-region support provided by Cloud Storage continues to include a default replication behavior that asynchronously replicates newly written data to a separate region, with most objects finishing replication within minutes. Users can enable turbo replication to obtain a 15-minute recovery point objective (RPO) for a more robust RPO on all objects.

Should you use dual-region storage?

Dual-regions provide the following benefits:

  • Provides geo-redundancy in support of business continuity and disaster recovery architectures.

  • Gives users the control to store their data in geographic regions closest to their processing workloads for higher performance.

  • Gives users the power to choose where their data is stored to help address compliance requirements. For example, addressing industry-specific requirements regarding the physical distance between copies of the data.

Restrictions and limitations

  • Not all regions are available to use in a dual-region, and pairings must reside in the same geographic area. For a list of available regions, see the dual-region availability table.

  • A bucket's geographic location is set at bucket creation and cannot be changed at a later time. If you want to use a dual-region for data presently stored in a region or multi-region, you must first transfer the data to a dual-region bucket. For more information, see Moving and renaming buckets.


For detailed pricing information, see Cloud Storage pricing.

Cloud Storage SLA

Dual-region storage is backed by Service Level Objectives (SLOs) described in the Cloud Storage SLA.

What's next