Administrator Guide

6. To allow users to select a Storage Type when creating a volume, select Allow Storage Type Selection.
7. Click OK.
Set Default Volume QoS Profile
Specify the default Volume QoS Profiles to be used for new volumes.
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. Click Summary.
The Summary view is displayed.
3. Click
(Settings).
The Storage Center Settings dialog box opens.
4. Click the Preferences tab.
5. In the Quality of Service Profile area, click Change.
The Select Volume QoS Profile dialog box opens, which shows all QoS profiles that have been defined.
6. Select one of the profiles by clicking its name.
7. Click OK.
Allow QoS Profile Selection
To enable users to select QoS Profiles, set the option to enabled.
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. Click
Summary.
The Summary view is displayed.
3. Click (Settings).
The Storage Center Settings dialog box opens.
4. Click the Preferences tab.
5. In the Quality of Service Profiles area, select the Allow QoS Profile Selection checkbox.
6. Click OK.
Configuring Storage Center Data Settings
You can configure cache, Data Progression, snapshot, and RAID stripe width settings for the Storage Center.
NOTE: For user interface reference information, click Help.
Set Storage Center Cache Options
Global Storage Center cache settings override cache settings for individual volumes. Read cache improves read performance by
anticipating the next read and holding it in volatile memory. Write cache increases write performance by holding written data in
volatile memory until it can be safely stored on disk.
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. Click
Summary.
The Summary view is displayed.
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Storage Center Maintenance