Product : VMware, vSAN [SDS]/7.0 U1, Enterprise
Feature : Dedup/Compr. Radius, Efficiency, Data Services
Content Owner:  Herman Rutten
Disk Group
Deduplication and compression is a cluster-wide setting and is performed within each disk group. Redundant copies of a block within the same disk group are reduced to one copy. However, redundant blocks across multiple disk groups are not deduplicated.