Note: To enable data deduplication on an HCI cluster, ensure that the data deduplication feature is enabled on all the cluster nodes. To enable the data deduplication feature, run the following PowerShell command:
Install-WindowsFeature FS-Data-Deduplication
Note: To ensure your deduplication activities run in an optimized way, refer to the following Microsoft Advanced Data Deduplication settings: Advanced Data Deduplication settings | Microsoft Docs.
Enable data deduplication using WAC and compression on a Storage Spaces Direct volume as follows.