Administrator Guide
3 Select a storage type.
The space saved by data reduction is displayed in the Data Reduction Savings section.
View Amount of Space Saved by Data Reduction on a Volume
The percentage of space saved by data reduction for a volume is an estimate found by comparing the total amount of space saved by
compression and deduplication with the total amount of space processed by data reduction in the volume.
1 If you are connected to a Data Collector, select a Storage Center from the drop-down list in the left navigation pane.
2 From the STORAGE menu, select Volumes.
The Volumes view is displayed.
3 In the Volumes view, select the volume you want to view.
4 Click the Tiering tab. The amount of space saved by data reduction on that volume is displayed at the bottom of the Tiering page.
Change the Default Data Reduction Prole
The default Data Reduction prole determines what type of data reduction is applied to new volumes created by a Unisphere Central user.
Allow Data Reduction Selection displays the data reduction options when creating volumes.
1 If you are connected to a Data Collector, select a Storage Center from the drop-down list in the left navigation pane.
2 Click the HOME menu.
The Unisphere Central Home page is displayed.
3 In the upper right corner of the Summary view, click (Settings).
The Edit Storage Center Settings dialog box opens.
4 Click the Preferences tab.
5 From the Data Reduction Prole drop-down list, select the Default Data Reduction prole.
• Select Compression to apply compression to all new volumes.
• In the Volume options, select Deduplication with Compression to apply deduplication and compression to all new volumes.
NOTE
: The setting will be applied to all volumes that share one or more snapshots with this volume. These shared volumes
are referred to as siblings in the message displayed.
Pause or Resume Data Reduction
Pause Data Reduction on a volume to prevent deduplication and/or compression from running during data progression. Pausing Data
Reduction on a volume pauses deduplication and/or compression on all view volumes created from the original volume. After pausing Data
Reduction, compression and deduplication stop running on new data but the existing data is not uncompressed.
Pause or Resume Data Reduction for a Volume
Pausing Data Reduction for a volume prevents compression and deduplication from happening until Data Reduction is resumed.
1 If you are connected to a Data Collector, select a Storage Center from the drop-down list in the left navigation pane.
2 From the STORAGE menu, select 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.
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Storage Center Administration