Learn everything you wanted to know about data deduping in our tutorial on data deduplication and data backup. Learn about global deduplication, source. Data duplication De-. Quantum Special. Edition. Reduce disk storage needs and lower costs! FREE eTips at ®. Mark R. Coppock Steve Whitner. Data deduplication is a technique to reduce the amount of storage space an organization needs by saving just one copy of the data and pointing duplicates back.

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Also, compression doesn’t get rid of duplicated data — the storage system could still contain multiple copies of compressed files. All other trademarks are the property of their respective owners. We are always happy to assist you. Brown and Robert E. Assignment 1 Worksheet B Jul 23, In a typical enterprise backup situation, compression may reduce backup size by a ratio of 2: The following facts and statistics capture the changing landscape of cloud computing and how service providers and customers are keeping up with Some compression is lossless, meaning that no data is lost in the process, but “lossy” compression, which is frequently used with audio and video files, actually deletes some of the less-important data included in a file in order to save space.

Deduplication can also reduce the amount of network bandwidth required for backup processes, and in some cases, it can speed up the backup and recovery process.


This kind of deduplication is sometimes called file-level deduplication or single instance storage SIS. The process for implementing data deduplication technology varies widely depending on the type of product and the vendor. We are nonprofit website to share and download documents.

In most organizations, the storage systems contain duplicate copies of many pieces deduplifation data.

Data DeDuplication for – Documents

If you have any questions about copyright issues, please report us to resolve them. However, post-process deduplication is dediplication faster than in-line deduplication. Many other vendors also own patents related to deduplication technology.

On the downside, source deduplication consumes more processor resources, and it can be difficult to integrate with existing systems and applications.

What is Data Deduplication? Webopedia Definition

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Deduplication methods vary widely from vendor to vendor, and many of those methods are patented. While deduplication can be applied to data stored on tape, the dwta high costs of disk storage make deduplication a very popular option for disk-based systems. In-line deduplication takes place before the backup copy is written to disk or tape.

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Data DeDuplication for Dummies.pdf

Some of the products that appear on this site are from companies from which QuinStreet receives compensation. NetApp reports that in some cases, deduplication can reduce storage requirements up to 95 percent, but the type of data you’re trying to deduplicate and the amount of file sharing your organization does will influence your own deduplication ratio.


From A3 to ZZZ this guide lists 1, text message and online chat abbreviations to help you translate and understand today’s texting lingo. Stay up to date on the latest developments in Internet terminology with a free newsletter from Webopedia.

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Often the phrase data deduplication is used as a synonym for block-level or variable length deduplication. For example, the same file may be saved in several different places by different users, or two or more files that aren’t identical may still include much of the same data. Java is a high-level programming language.

data deduplication

In addition, Quantum owns a patent on variable length deduplication. This second Study Guide describes the basics of Java, providing an overview of operators, modifiers and control Structures. While deduplication eliminates redundant data, compression uses algorithms to save data more concisely.

Block-level deduplication frees up more space than SIS, and a particular type known as variable block or variable length deduplication has become very popular.