Hello. I have enabled data deduplication on one of my SSD's volumes and then run Start-DedupJob cmdlet with optimizastion parameter on this volume. After dedup completed i check Get-Dedupstatus and get this output:
FreeSpace SavedSpace OptimizedFiles InPolicyFiles Volume
--------- ---------- -------------- ------------- ------
81.25 GB 9.44 GB 2 11 D:
Howevere when i have checked disk space, i discovered that free space was not increased, but instead decreased. (I had 88Gb of free space before deduplication, and after i had 81.25Gb of free space). Also I have checked the only folder in this volume and found it has the same size as before dedup.
Also i tried Start-dedupJob with GarbageCollection type after all, and now i have that output:
FreeSpace SavedSpace OptimizedFiles InPolicyFiles Volume--------- ---------- -------------- ------------- ------
81.26 GB 0 B 2 11 D:
Why data deduplication worked so strange for me?