You can view the list of reconstruction jobs for each partition of the deduplication database (DDB).
Procedure
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From the CommCell Browser, expand Storage Resources > Deduplication Engines > storage_policy_copy > deduplication_database, 
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Right-click partition, and then click View > Partition Recovery History. 
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In the Partition Recovery History Filter dialog box, select appropriate settings, and then click OK. The list of Dedup DB Reconstruction jobs appears in the Admin Job History window.