HP StorageWorks 6000 HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 71
Restoring Data, D2D Configuration, Dynamic Deduplication Ratio
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Figure 26 D2D Configuration . The current deduplication ratio for the D2D device is calculated and displayed in the GUI. This figure updates automatically. See Figure 27. Figure 27 Dynamic Deduplication Ratio . The D2D device fully emulates a tape library, including its drive-type and supported compression. Dynamic deduplication can be used in combination with data compression for even greater storage savings. You can directly connect a tape drive to the D2D device for copying and exporting data to physical media. Data that has been deduplicated can be exported to physical tape without being reassembled first, and without using the backup application. Restoring Data On receiving a restore command from the backup system, the D2D device selects the correct recipe file and begins reading it, starting with the first hash. This process is illustrated in Figure 28 and the ordered list that follows. HP StorageWorks VLS and D2D Solutions Guide 71