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Which type of deduplication method is performed by HP StoreOnce D2D devices?
A. object-level differencing
B. pre-hash data encrypting
C. metadata compressing
D. hash-based chunking
Correct Answer: D
Explanation/Reference:
Explanation:
HP D2D (Disk to Disk) Backup Systems use Dynamic deduplication(hash-based chunking) technology that provides a significant price advantage over our competitors.
Note:
* HP offers two complementary deduplication technologies that meet very different customer needs:
/ Accelerated deduplication (object-level differencing) for the high-end enterprise customer who requires:
Fastest possible backup performance
Fastest restores
Most scalable solution possible in terms of performance and capacity Multi-node low-bandwidth replication
High deduplication ratios
Wide range of replication models
/ Dynamic deduplication (hash-based chunking) for the mid size enterprise and remote office customers who require:
Lower cost device through smaller RAM footprint and optimized disk usage A fully integrated deduplication appliance with lights-out operation Backup application and data type independence for maximum flexibility Wide range of replication models
Reference: Understanding the HP Data Deduplication Strategy
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