Administrator Guide

2. From the STORAGE menu, click Volumes.
The Volumes view is displayed.
3. On the Volumes view, select the volume you want to modify.
4. Click (Edit).
The Edit Volume dialog box opens.
5. Expand Data Reduction.
6. From the Data Reduction Profile drop-down list, select Compression.
7. Click OK.
Related tasks
Creating Volumes on page 49
Modifying Volumes on page 52
Deduplication
Deduplication reduces the space used by a volume by identifying and deleting duplicate pages. Deduplication requires SSD
drives.
Apply Deduplication With Compression to a Volume
Apply Deduplication with Compression to reduce the size of the volume. Deduplication and compression run during daily Data
Progression.
Prerequisites
Allow Data Reduction Selection must be enabled in the Preferences tab of the Edit Storage Center Settings dialog box.
About this task
NOTE:
The amount of space saved by Data Reduction is determined by the amount of data eligible for Data Reduction on
the volume compared to the total amount of space used by that data on disk after Data Reduction.
Steps
1. If you are connected to a Data Collector, select a Storage Center from the drop-down list in the left navigation pane of
Unisphere Central.
2.
From the
STORAGE menu, click Volumes.
The Volumes view is displayed.
3. In the Volumes view, select the volume you want to modify.
4. Click (Edit).
The Edit Volume dialog box opens.
5. Expand Data Reduction.
6. From the Data Reduction Profile drop-down menu, select Deduplication with Compression.
View Amount of Space Saved by Data Reduction
The total amount of space saved by Data Reduction depends on the amount of data eligible for data reduction and the type of
data being processed. Certain types of data will be reduced more effectively than others. The amount of volume data eligible for
data reduction is determined by the size of the data frozen by snapshots, and the Data Reduction Input setting.
Storage Center Administration
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