You can assign a region to a storage array.
Procedure
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From the navigation pane, go to Manage > Infrastructure.
The Infrastructure page appears.
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Click the Arrays tile.
The Arrays page appears.
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In the Name column, click an array.
The array page appears.
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On the General tab, click Edit.
The Edit general information dialog box appears.
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From the Region list, select a region.
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Click Save.