Essential Guide

Complete guide to backup deduplication

This guide offers information on dedupe technology today, its strengths and weaknesses, and how it's being used.


Deduplication has moved from cutting-edge technology to mainstream staple. The data protection technology first showed up in 2003, aimed at organizations looking to move away from tape for the performance of disk-based backups. A decade later, dedupe is basically a requirement for backup products, although many companies say they still aren't using it for data protection.

Thirty-five percent of respondents in Storage magazine's last Purchasing Intentions survey said that they would be deploying deduplication technology within a year. The survey also indicates that the move away from tape as a backup medium continues. Thirty-eight percent said they plan to cut spending, while 48% intend to keep tape spending at last year's level.

Check out this comprehensive collection of backup deduplication content and get started learning now.

1What's up-

Backup deduplication technology today

Whether you are new to the technology or just need a refresher, these articles will get you up to speed on the backup deduplication space today.


Dedupe explained: A primer on backup deduplication in 2014

Backup deduplication is so common today, it is often taken for granted. However, there are a number of things to consider before choosing a dedupe approach. Continue Reading


After 10 years, dedupe technology leads backup appliances, software

After 10 years of data dedupe technology in backup appliances and software, disk backup thrives but tape is still alive. Continue Reading


What's hot in dedupe technology

Rachel Dines, an analyst at Forrester Research, discusses important recent developments in dedupe technology, including deduplication accelerators. Continue Reading


Dedupe tools available today

Brien Posey discusses who is using deduplicating disk arrays today and the latest dedupe tools in this Expert Answer. Continue Reading

2Tech notes-

How deduplication is performed

There are many different ways that backup deduplication can be performed. Software vs. hardware, post-process vs. inline, target vs. source, and more. Learn about the strengths and weaknesses of each approach.


Comparing available deduplication hardware options

Choosing the right deduplication hardware option requires a comparison of expected savings, performance requirements and storage capacity consumption. Continue Reading


The benefits of deduplication and where you should dedupe your data

A growing number of vendors are offering data deduplication solutions; learn about the benefits of deduplication and specific dedupe products. Continue Reading


Post-process vs. inline deduplication and more

Rachel Dines, a Forrester Research analyst, outlines post-process and inline deduplication, as well as fixed and variable-block length dedupe. Continue Reading


Software versus hardware backup deduplication

Learn the differences between software and hardware backup deduplication in this Expert Response from Rachel Dines. Continue Reading


Software + hardware dedupe

Learn the pros and cons of software- and hardware-based deduplication and how they are typically used to complement each other. Continue Reading


Target versus source deduplication today

Analyst Rachel Dines discusses target and source deduplication today, including their pros and cons. Continue Reading


Source + target dedupe

Many dedupe vendors offer both source- and target-based backup. This piece compares source and target deduping and discusses how they are typically used to complement each other. Continue Reading


Global data deduplication explained

Global data deduplication can yield significant capacity savings, but its most attractive feature may be the architecture it's built upon. Continue Reading

3Real world -

How deduplication is used today

Many organizations struggle with data growth. Deduplication, along with other techniques such as data lifecycle management, is aimed at addressing this ongoing issue. This section explores some of the ways backup deduplication is being used today -- to move data off-site, for virtual machine (VM) backups and more.


Cancer hospital cures VM backup woes

Roswell Park Cancer Institute struggled with VM backups and restores until it combined Veeam software and Hewlett-Packard StoreOnce disk targets. Continue Reading


Data backup process angst persists, but dedupe and cloud offer relief

Our latest Storage magazine survey finds respondents implementing dedupe and evaluating cloud backup services to deal with issues in their data backup process. Continue Reading


What types of data yield a high deduplication ratio?

In this Expert Response, Forrester Research analyst Rachel Dines outlines the types of data that yield high deduplication ratios. Continue Reading


Software-based deduplication and cloud backup

Learn about the software dedupe options available today and about the ways cloud backup is driving interest in dedupe. Continue Reading


Windows Server 2012 deduplication vs. backup software dedupe

Now that deduplication has become a mainstream technology, IT pros are forced to choose between competing deduplication solutions. Continue Reading


Using deduplication when backing up VMs

in this Expert Answer, independent backup expert Brien Posey discusses using deduplication when backing up VMs. Continue Reading


Education group goes all-dedupe for data center, remote data backups

Teach For America found cloud backup costly and tape backup slow, so it switched to data dedupe appliances for data center and remote data backups. Continue Reading


How centralized backup can ease remote site data protection challenges

Listen to our podcast to learn about the technologies available for centralized backup of remote sites. Continue Reading


Using data dedupe technology as part of your disaster recovery strategy

Data deduplication isn't just for backups anymore -- learn how data dedupe technology can be an important part of your disaster recovery (DR) strategy. Continue Reading


Finding data deduplication solutions for DR

Deduplication is an important strategy for DR. Learn more about data dedupe solutions in this expert tip by Paul Kirvan. Continue Reading


Deduplication and data lifecycle management

In this tip, independent backup expert Brien Posey offers information about how data deduplication impacts data lifecycle management. Continue Reading


Data deduplication challenges

Dedupe has changed the way backups are performed, but as with any technology, it can't solve every problem IT pros face. These articles take a look at some deduplication challenges.


Is this the end for target deduplication storage appliances?

Marc Staimer examines why the market for target deduplication storage appliances appears to be in decline, even with the presence of EMC, Symantec and HP. Continue Reading


Backup deduplication can help, but it's no magic bullet

SearchDataBackup contributor John Hilliard and independent storage expert Marc Staimer discuss backup deduplication in this Q&A. Continue Reading


The "deduping tax" and other issues to consider with deduplication

In the ninth and final part of our deduplication series, Brien Posey discusses the so-called deduping tax and other things to consider with deduplication. Continue Reading


Speeding up backup deduplication

Deduplication is a key piece of the backup process, but it can bog down backup systems. Find out how dedupe accelerators help backup deduplication. Continue Reading