Deduplication

Deduplication on windows volumes saves space by comparing data and for any copies it stores in a chunk store and references this where any copies are located.

The service runs as three processes:

optimisation
garbagecollection
scrubbing

Powershell cmdlets for Dedupe

Get-dedupjob

Stop-dedupjob drive

Get-dedupschedule

Start-dedupjob -type optimization -full -priority High -Memory 80 disk

Start-dedupjob -type garbagecollection -full -priority High -Memory 80 -volume disk

Start-dedupjob -type scrubbing -full -priority High -Memory 80 disk

Measure-DedupFileMetadata <volume>