* Dell Unity XT offers both synchronous and asynchronous replication to protect data and ensure business continuity.
* Synchronous replication is used for zero RPO, ensuring no data loss, but it is typically limited to shorter distances due to latency concerns.
* Asynchronous replication is suitable for longer distances and provides near real-time data protection with a minimal RPO.
* Distance Considerations:
* The distance between Boston and Cambridge (8 km) is suitable for synchronous replication, providing zero RPO.
* The distance between Boston and New York (342 km) is better suited for asynchronous replication due to latency, ensuring data recovery with a minimal RPO, such as 15 minutes.
* Optimal Replication Strategy:
* Synchronous replication from Boston to Cambridge ensures zero RPO for critical data protection.
* Asynchronous replication from Boston to New York provides additional data protection with a
15-minute RPO, suitable for longer-distance disaster recovery.
* Dell Midrange Storage References:
* Dell Unity XT documentation and best practices provide detailed guidelines on configuring synchronous and asynchronous replication.
* Community forums and support resources from Dell Technologies offer insights into real-world implementation strategies.
References:
* Dell Unity XT Replication Guide
* Dell Community on Data Protection