Deduplication Means Efficiency

April 14, 2007

EMC brought deduplication to the attention of the IT world with its $165 million acquisition of startup Avamar Technologies in November 2006. Officials with the Hopkinton, Mass., company said this technology was one of the last pieces of the storage puzzle it did not own.

Since then, most all storage vendors have been acquiring the technology - or adding their own homemade version - into their product lines.

Used correctly, deduplication - which replicates only the unique segments of data that need to be stored - can cut the amount of data by 50 to 90 percent, not only saving storage space but also increasing bandwidth, lowering power and cooling requirements due to "resting" or inactive servers, and saving companies money on the bottom line.

Data Domain, EMC/Avamar, Diligent Technologies and Quantum are among the market leaders in the burgeoning deduplication space. In TheInfoPro's Storage Network & Storage Management Wave 8 study in January, a survey of Fortune 1000 IT managers cited Data Domain as the leading vendor in their spending plans for deduplication technology. According to TheInfoPro's Technology Heat Index, a measure of users' spending and implementation plans, Data Domain was listed as the lead "in plan" deduplication vendor, generating twice as many responses as its nearest competitor.

In October 2006, Data Domain introduced the DDX array - what officials claimed was the industry's first data center-scale deduplicating protection storage array. Now, more than 700 customers are using the product, and that number is growing, said Frank Slootman, president and CEO of Data Domain.

Quantum is using deduplication technology acquired via its August 2006 ADIC (Advanced Digital Information Corp.) acquisition (which previously had acquired Rocksoft) in both disk- and virtual-tape-based backup products. Diligent, an up-and-coming player in the space, deduplicates data using a proprietary algorithm while the data is on its way into the backup target, which, in Diligent's case, is a VTL (virtual tape library).

Avamar's founder and president, Jed Yueh, whose nearly 500 customers include half of the Fortune 50 companies, told eWEEK that "data deduplication technology can transform archaic - digital tape - procedures, enabling automated, encrypted disaster recovery across existing wide-area networks and accelerating the shift to disk as the de facto medium for data protection."

Although the market often lumps deduplication solutions together, differences in implementation lead to significant differences in customer benefits.

"For instance, in real-world customer deployments, Avamar has seen as high as 588-1 daily reduction in network traffic and data storage for backups, a rate of efficiency that dwarfs the competition," Yueh said. "Most of our competitors deduplicate at the target, after the backup server has requested resource-taxing full and incremental backups. Avamar, on the other hand, eliminates the avalanche before it happens, at the source."

This also provides a critical, differentiating benefit: the ability to network-mount point-in-time backups to use in conjunction with external applications such as search or document classification, Yueh said.

"In the end, I believe data deduplication will become a foundation technology for tomorrow's information infrastructure," Yueh said.

Copyright 2007 by Ziff Davis Media, Distributed by United Press International

Explore further: Fujitsu develops data-transfer acceleration technology

Related Stories

Fujitsu develops data-transfer acceleration technology

April 8, 2014

Fujitsu Laboratories today announced the development of a technology for accelerating data transfer speeds that can be applied to various types of network environments used for cloud, mobile applications and other services.

Giants Draft Storage System to Keep an Eye on the Game

April 16, 2007

With Barry Bonds on the verge of making baseball history, the S.F. Giants are bringing state-of-the-art video capabilities to AT&T Park, making it one of the world's most well-equipped high-tech sports venues.

Quantum Upgrades StorNext Software

April 5, 2007

StorNext 3.0 will help cut data-retention cost and enable customers to expand storage capacity and replace storage devices while keeping the system online.

Recommended for you

Making 3-D imaging 1,000 times better

December 1, 2015

MIT researchers have shown that by exploiting the polarization of light—the physical phenomenon behind polarized sunglasses and most 3-D movie systems—they can increase the resolution of conventional 3-D imaging devices ...

US ends bulk collection of phone data

November 30, 2015

The US government has halted its controversial program to collect vast troves of information from Americans' phone calls, a move prompted by the revelations of former intelligence analyst Edward Snowden.


Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.