Product : Microsoft, S2D [SDS]/2.0, Datacenter
Feature : Dedup/Compr. Radius, Efficiency, Data Services
Content Owner:  Herman Rutten
Summary
Volume
Details
Windows Server 2019 deduplication is highly scalable and can be used with volumes up to 64TB and files up to 4TB in size. Data deduplication identifies repeated patterns across files on that volume.

In Windows Server 2019 Datacenter there is a maximum of 64 volumes per S2D cluster.