A stretched cluster model allows synchronous replication between sites with RPO = 0, ensuring no data loss.
Since the datacenters are within low-latency (<5ms) distance, stretched vSAN clusters with fault domains can span across them.
Other options:
A/B (disaster recovery models) rely on asynchronous replication, introducing potential data loss.
C (multi-rack fault domains) improves rack-level resiliency, not site-level protection.
Thus, the correct design is a VCF fleet with stretched cluster model across fault domains.
[Reference: VMware Cloud Foundation 9.0 – Stretched Cluster and Fault Domain Design Guidance., , ]
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