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.
Pricing
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
- See how to use dual-region storage.
- Learn more about turbo replication.
- Compare the relative advantages of block, file, and object storage.
- Learn more about inter-region replication pricing.