Every now and then we come across a well written white paper that – even though it’s sponsored by a vendor – presents a compelling argument.

That’s the case with “Extending D2D to Offsite DR: The ROI Case for Wan Vaulting.”

Written by Barb Goldworm of Focus Consulting for Data Domain, it uses case studies to show the benefits of deduplication and D2D backup and how it can be extended to deliver cost effective offsite data protection and DR.

This is a well thought out and well written effort. It shows how to build a case for WAN vaulting using direct and indirect savings, TCO, ROI and payback periods. However, this is not a detailed math and formula guide – it uses real world examples with appropriate tables and graphs.

“Extending D2D…” offers substance and readability.

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One of the most tedious and complex jobs in the world of IT used to be data backup. Not anymore.

This paper first examines the state of the industry relative to Disk-to-Disk (D2D) adoption. It explores the issues

• tape backup
• cost aspects of new, less expensive disk with capacity optimization
• tangible and intangible benefits of moving to D2D

The second half of the paper discusses financial analysis such as Total Cost of Ownership (TCO), Return on Investment (ROI) and payback periods and how they can build a strong business case for D2D and Capacity Optimized Storage (COS). We present three case studies of actual users who are moving from tape to D2D in varying degrees (from disk backup as nearline storage with no changes in tape backup procedures, to a complete elimination of tape).

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