Data replication is being designed as part of a data protection setup to be run over the network. Which replication strategy is best suited when the primary and secondary systems are physically close to each other?
Why Synchronous Replication?
* Strong data consistency: Data is written to the primary system and then immediately replicated to the secondary system before acknowledging the write operation. This ensures that both systems have identical data at all times.
* Disaster recovery: In case of a failure at the primary site, the secondary site can quickly take over operations with minimal data loss.
* Low latency: Since the systems are physically close, the replication process can be performed with minimal delay.
Other Options Explained:
* Snapshot replication: Creates periodic copies of data, but doesn't guarantee real-time consistency.
* Transactional replication: Replicates data based on transactions, which can lead to inconsistencies if failures occur.
* Direct replication: Typically refers to hardware-based replication, which might not be the most flexible option for network-based replication.
By choosing synchronous replication in this scenario, you prioritize data consistency and disaster recovery without sacrificing performance due to the close proximity of the systems.
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Doobiedoo
9 months, 3 weeks ago