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Proximity placement groups allow you to specifiy virtual machines that should be co-located in the same data center.

Proximity placement groups improve the overall application performance by reducing the network latency among virtual machines. You should consider using proximity placement groups for multi-tiered, IaaS-based deployments where application tiers are deployed using multiple virtual machines, availability sets and/or virtual machine scale sets.

Proximity Placement Group

作者 Microsoft

Proximity placement groups allow you to specifiy virtual machines that should be co-located in the same data center.