Refreshing a VDB will re-provision it from the dSource. As with the normal provisioning process, you can choose to refresh the VDB from a snapshot or a specific point in time.
To refresh a VDB in DCT, follow these steps:
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Log in to the DCT instance.
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Navigate to Data > VDBs and click View on a VDB, and click Refresh.
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On the Select Refresh Source page, select any of the following options:
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Parent: Set the data state to any snapshot point from the parent.
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Self: Set the data state to any snapshot point of the VDB.
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Relative: Set the data state to any available snapshot from any relative VDB.
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Bookmark: Set the data state to any compatible bookmark
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On the Refresh Point page, select the snapshot point and click Next.
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Review the refresh summary and click Submit.
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Select the Undo Refresh under the Actions menu to revoke last refresh action.