Data deduplication technology represents one of the most significant storage enhancements in recent years, promising to reshape future data protection and disaster recovery solutions. Data deduplication offers the ability to store more on a given amount of storage and replicate data using lower bandwidth links at a significantly reduced cost. This white paper explains how deduplication technologies work in practice, the pros and cons of each approach, and when to choose a particular type.
Understanding the HP Data Deduplication
Strategy
Why one size doesn't fit everyone Table of contents Executive Summary .............................................................................................................................. 2 Introduction......................................................................................................................................... 4 A word of caution ............................................................................................................................ 5 Customer Benefits of Data Deduplication ................................................................................................ 7 A word of caution ............................................................................................................................ 9 Understanding Customer Needs for Data Deduplication......................................................................... 10 HP Accelerated Deduplication for the Large Enterprise Customer............................................................. 11 Issues Associated with Object-Level Differencing ................................................................................ 14 What Makes HP Accelerated Deduplication unique?.......................................................................... 14 HP Dynamic Deduplication for Small and Medium IT Environments .......................................................... 16 How Dynamic Deduplication Works................................................................................................. 17 Issues Associated with Hash-Based Chunking .................................................................................... 19 Low-Bandwidth Replication Usage Models ............................................................................................ 21 Why HP for Deduplication? ................................................................................................................ 23 Deduplication Technologies Aligned with HP Virtual Library Products....................................................... 24 Summary .......................................................................................................................................... 25 Appendix A-Glossary of Terminology ................................................................................................ 26 Appendix B-Deduplication compared to other data reduction technologies............................................. 27 For more information.......................................................................................................................... 28 Executive Summary
Data deduplication technology represents one of the most significant storage enhancements in recent years, promising to reshape future data protection and disaster recovery solutions. Data deduplication offers the ability to store more on a given amount of storage and replicate data using lower bandwidth links at a significantly reduced cost. 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
This whitepaper explains how HP deduplication technologies work in practice, the pros and cons of each approach, when to choose a particular type, and the type of low-bandwidth replication models HP plans to support.
Why HP for Deduplication? . The HP Virtual Library System (VLS) incorporate Accelerated deduplication technology that delivers high-performance deduplication for enterprise customers. HP is one of the few vendors to date with an object level differencing architecture that combines the virtual tape library and the deduplication engine in the same appliance. Our compe... [download for more]
