deduplication

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deduplication

(1) A method for compressing data by storing only changes to the original data. For example, when a document is created, it is stored as a regular, complete file. When changes are made, deduplication stores only the data that has been modified in a subsequent file with indexes to the original. The changes may be identified by bytes or blocks. See backup types.

(2) To remove duplicate records from a file or duplicate files in various storage locations.
References in periodicals archive ?
The addition of expansion shelves, combined with our advanced data de-duplication and compression technologies, offers customers a simple, affordable and scalable way to manage data protection," Atkinson added.
com, data de-duplication can occur at one of two places: in-line as data is flowing into the system or post-process, after the data has arrived at its storage destination.
With this release data de-duplication becomes a reality, greatly reducing network load which typically slows performance of the virtual enterprise.
While data compression has been focused on the primary storage, data de-duplication is directed at the back-up and archiving arena.
Data de-duplication was a concept relatively unknown at the beginning of 2007, yet ended the year as a $100 million market of its own.
The company provides data protection for disk-to-disk backup recovery, data de-duplication and remote replication to more than 500 businesses.
StorSimple, the leading provider of cloud-integrated enterprise storage for Windows and VMware infrastructures, today released results of data collected from production installations showing that a cloud-integrated storage approach to enterprise storage offers data de-duplication (de-dupe) ratios that average 3x to 5x for on-premise data and data in the cloud.
Data de-duplication Data de-duplication via byte and file caching reduces bandwidth consumption and lowers latency by orders of magnitude, delivering faster response times and a better experience for users.
announced NetBackup 7 for enterprises and Backup Exec 2010 for midsize companies, both of which offer data de-duplication and archiving technology.
EMC has scored another victory over storage rival NetApp by purchasing Data Domain, a merger which widens the technological gap between the companies in the fast-growing data de-duplication market.
These new updates are part of integrated solutions that meet specific data protection requirements for analysis and reporting, backup for Microsoft and VMware virtual environments, data de-duplication and replication, helping customers slow data growth, reduce capacity and lower total cost of operations.
Data de-duplication technology is certainly the hottest thing in the world of storage right now, but what impact is it likely to have on the way IT managers buy storage in the future?