Product : VMware, vSAN [SDS]/6.7 U3, ROBO Adv
Feature : Dedup/Compr. Function, Efficiency, Data Services
Content Owner:  Herman Rutten
Summary
Efficiency (Space savings)
Details
Deduplication and compression can provide two main advantages:
1. Efficiency (space savings)
2. Performance (speed)

Most of the time deduplication/compression is primarily focussed on efficiency.