In these days of rampant data growth, a technology that can increase the effective capacity of a disk-based backup system by a ratio of up to 50:1 is big news. Data deduplication allows you to store up to 50 times more backup data into the same disk footprint — giving you a better chance of restoring your users' lost data from exactly the point they need it. This white paper explains how this innovative data deduplication solution works and also establishes how a 50:1 deduplication ratio may be achieved.
HP Dynamic Deduplication-
achieving a 50:1 ratio
Table of contents Introduction ......................................................................................................................................... 2 Data deduplication-the hottest topic in data protection ........................................................................... 2 The benefits of data deduplication ......................................................................................................... 2 How does data deduplication work? ...................................................................................................... 3 What is Dynamic Deduplication? ........................................................................................................... 4 What deduplication ratio can I expect to achieve? .................................................................................. 4 HP test results ...................................................................................................................................... 5 Test configuration ............................................................................................................................. 5 Backup scenario .............................................................................................................................. 5 Results ............................................................................................................................................ 6 Measurement ................................................................................................................................... 6 Conclusion .......................................................................................................................................... 6 For more information ............................................................................................................................ 7 Introduction
In June 2008, HP introduced two additional products to the HP StorageWorks D2D Backup System Family, the 1U rack-mountable D2D2500 and the 2U rack-mountable D2D4000. Both new products feature Dynamic deduplication based on an HP-patented deduplication algorithm that packs up to 50 times more backup data into the same disk footprint. This paper explains how Dynamic deduplication works and also establishes how a 50:1 deduplication ratio may be achieved.
Data deduplication-the hottest topic in data protection
In these days of rampant data growth, a technology that can increase the effective capacity of a disk-based backup system by a ratio of up to 50:1 is big news. Data deduplication allows you to store up to 50 times more backup data into the same disk footprint -giving you a better chance of restoring your users' lost data from exactly the point they need it. And because fast restores of lost files are the hallmark of disk-based backup, your users are getting what they want when they want it. In any organization today, time is money, so restoring data and getting people back to work as quickly as possible saves money. and can save your reputation too.
The benefits of data deduplication
Adding data deduplication to disk-based backup delivers three key benefits: 1. It provides a cost-effective way of retaining your backup data on disk for longer-months instead of weeks-making file restores fast and easy from multiple recovery points. By extending data retention periods on disk, your backup data is easily accessible for longer periods of time before archiving to tape. In this way, lost or corrupt files can be quickly and easily restored from backups taken over a longer time span. This in turn improves service levels, reduces the disruption to your business, and allows users to return to work more quickly. 2. Efficient use of disk-space effectively reduces the cost-per-gigabyte of storage and can postpone the need to purchase more disk capacity. For data center managers who worry about the floor space and energy consumption required by storage hardware as data growth continues to accelerate, the HP disk-based backup systems with deduplication also reduce the space and power needs for a given volume of data. 3. Ultimately, data deduplication makes the replication of backup data over low-bandwidth WAN links viable (providing off-site protection for backup data) as only the changed data is sent across the connection to a second de... [download for more]
