NetApp
Storage > Volumes : Managing volumes : Configuring deduplication on a volume
Configuring deduplication on a volume
If you have not configured deduplication when you created a volume, you can do so later from the Edit volume dialog box.
Before you begin 
Deduplication license must be enabled on the storage system.
Steps 
1.
From the Home tab, double-click the appropriate storage system.
2.
Click Storage > Volumes.
3.
Select the volume for which you want to configure deduplication.
4.
Click Edit, then click Storage Efficiency.
5.
Select the "Enable dedupe on this volume" check box.
6.
Select one of the following schedules:
On-demand
Deduplication must be run manually.
Automated
Deduplication runs when 20 percent new data has been written to the volume.
Default schedule
Deduplication runs at specified times.
•
Default schedule: Deduplication runs at midnight, on weekends.
•
Custom schedule: Deduplication runs only at specific time periods during the course of the week.
7.
If you choose to run deduplication on a custom schedule, set the schedule by selecting the days, times, and frequency you want deduplication to run.
8.
Click Save and Close to save your changes.