Active-Everywhere, Always: Cross Data Center Replication
When a region fails, decisions continue.
Volt Cross Data Center Replication (XDCR) runs real-time decision systems in every region simultaneously, with deterministic consistency, automatic continuity, and zero data loss.
Regional Failure Is Inevitable. Stopping Isn’t.
Cloud regions go dark. Data centers fail. Connections drop.
For fraud control, charging, payments, or operational control, a regional outage isn’t an inconvenience. It’s an immediate business impact.
Most geo-replication architectures were built for backup and analytics:
- Eventual consistency
- Primary–replica hierarchies
- Manual failover
- Trade-offs between speed and correctness
When a region fails, you’re forced to choose to continue on stale data and risk incorrect decisions, or stop processing and wait for recovery.
Active-Active-Active (and Beyond)
Volt Cross Data Center Replication (XDCR) enables every region to run live production traffic at the same time.
Every Region Is Always Active
Any number of regions can process transactions concurrently. There is no promoted standby and no failover event.
Failure Equals Capacity Loss, Not Downtime
If a region goes offline, healthy regions are already processing traffic. Nothing needs to be promoted or reconfigured.
Deterministic Multi-Region Consistency
Concurrent updates across regions converge predictably using defined merge logic. No guesswork. No silent corruption.
Scale
Without Limits
Add regions as your business grows, without introducing global coordinators or new failure points.
How Volt XDCR Works
Multi-Master Replication: Every region accepts writes locally and replicates changes to others. Transactions complete at local latency.
Partition-Tolerant Design: Regions continue operating independently during network splits and reconcile automatically when connectivity returns.
Automatic Regional Detection: Failures are detected rapidly. Traffic routes to healthy regions without manual intervention.
Deterministic Convergence: Conflicts follow defined resolution rules — last-write-wins or application-defined logic, ensuring predictable final state.
Cross-Region Atomicity (When Needed): Global transactions use optimized consensus only when required, minimizing coordination overhead.
What XDCR Delivers
- Survive regional disasters automatically
- Guarantee zero data loss on committed transactions
- Serve users from the nearest region at low latency
- Eliminate manual failover procedures
- Meet data residency and regulatory requirements
- Scale globally without central coordination bottlenecks
Regional outages become invisible to applications and users.
Ready for Global Continuity?
See how Volt enables active-everywhere decision systems across data centers, cloud regions, and continents, with guaranteed consistency and zero data loss.
