Netapp deduplication how does it work

NetApp is the proven leader when it comes to modernizing and simplifying your storage environment. Our industry-leading solutions are built so you can protect and secure your sensitive company data. Get complete control over your data with simplicity, efficiency, and flexibility. Speed application development, improve software quality, reduce business risk, and shrink costs.

Our solutions remove friction to help maximize developer productivity, reduce time to market, and improve customer satisfaction. NetApp AI solutions remove bottlenecks at the edge, core, and the cloud to enable more efficient data collection. Provide a powerful, consistent end-user computer EUC experience—regardless of team size, location, complexity. Data deduplication is a process that eliminates excessive copies of data and significantly decreases storage capacity requirements.

Each block of data has a digital signature that is compared with all other signatures in a data volume. If an exact block signature match exists, a byte-by-byte comparison is done for all the bytes in the block. Only if all the bytes match, the duplicate block is discarded and its disk space is reclaimed resulting in no data loss. Results in the real world might be even higher than this since in many cases the number of file revisions is likely to be higher than that which we simulated.

Of course, in general you have to be careful when using simulators to measure the potential savings of deduplication. Simulated data in many cases will create artificially high amounts of duplicate data, since the focus is typically performance, not data patterns. Similar to Teamcenter, IBM Rational ClearCase—a leading software configuration management solution—consists of a metadata database in combination with a large "versioned object base," or VOB, in which files are stored.

Schlumberger Petrel is used for seismic data interpretation, reservoir visualization, and simulation workflows. It creates project directories that contain huge numbers of files. As users create, distribute, and archive data, duplicate data objects are stored across multiple storage devices. Using NetApp Deduplication.

In addition to these requirements, attention to a few best practices can help enable success with deduplication. Some of the important best practices are summarized in this section along with information about using deduplication in conjunction with other popular NetApp technologies. Deduplication is designed to work with other NetApp technologies.

In many cases, those technologies get an additional benefit:. Deduplication is an important storage efficiency tool that can be used alone or in conjunction with other storage efficiency solutions such as NetApp thin provisioning, FlexClone, and others. This frequently updated guide covers a broad range of topics including:. Want to know more about deduplication? You may be interested in reading these previous articles from Tech OnTap:.

Check out the article to learn how it's implemented, best practices, and more. Learn more. All content posted on the NetApp Community is publicly searchable and viewable. Participation in the NetApp Community is voluntary. Could you please guide me that how to findout a acual used space of a volume in the case of deduplicaion enabled.

This website uses cookies. By clicking Accept, you consent to the use of cookies. Click Here to learn more about how we use cookies. Back to Basics: Deduplication. By Carlos Alvarez, Sr. Technical Marketing Engineer. Figure 1 How NetApp deduplication works. Use Cases NetApp has been measuring the benefits of deduplication in real-world environments since deduplication was introduced.

Therefore, as additional data is written to the deduplicated volume, fingerprints are created for each new block and written to a change log file. For subsequent postprocess deduplication operations, the change log is sorted and merged with the fingerprint file, and the postprocess deduplication operation continues with fingerprint comparisons as previously described.