Administrator Guide

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. Expand the Dell Storage Manager menu, then click Storage.
2. In the SC Series tab, select a Storage Center.
3. Click the Storage tab.
4. In the Storage tab navigation pane, select a volume.
5. Click the Tiering subtab. The amount of space saved by Data Reduction on that volume is displayed at the bottom of the
Tiering subtab.
Change the Default Data Reduction Profile
The default Data Reduction profile determines what type of Data Reduction is applied to new volumes created by that Storage
Manager user. Allow Data Reduction Selection allows the Data Reduction options to appear when creating volumes.
1. Expand the Dell Storage Manager menu, and then click Storage.
2. In the SC Series tab, select a Storage Center to open the Storage Center view.
3. In the Summary tab, click Settings. The Edit Storage Center Settings dialog box opens.
4. Click the Preferences tab.
5. From the Data Reduction Profile drop-down list, select the default Data Reduction profile.
• Select Compression to apply compression to all new volumes.
• Select Deduplication with Compression to apply deduplication and compression to all new volumes.
Pause or Resume Data Reduction
Pause Data Reduction on a volume to prevent deduplication and/or compression from running during Data Progression. After
pausing Data Reduction, compression and deduplication stop running on new data but the existing data is not uncompressed.
Pausing Data Reduction on a volume pauses deduplication and/or compression on all view volumes created from the original
volume.
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. Expand the Dell Storage Manager menu, and then click Storage.
2. In the SC Series tab, select a Storage Center to open the Storage Center view.
3. Click the Storage tab.
4. In the Storage tab navigation pane, expand Volumes.
5. Select a volume.
6. Click Edit. The Edit Volume dialog box opens.
7. Pause or resume Data Reduction on the volume.
• To pause Data Reduction, select the Data Reduction Paused checkbox.
• To resume Data Reduction, clear the Data Reduction Paused checkbox.
8. Click OK.
Pause or Resume Data Reduction for all Volumes
Pausing Data Reduction from the Storage Center Edit Settings dialog box pauses compression and deduplication for all volumes in
that
Storage Center.
About this task
NOTE: Pause Data Reduction cannot be applied to other Storage Centers from the Storage Center Edit Settings dialog
box using inherit settings.
Storage Center Administration
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