DATA DEDUPLICATION FOR DUMMIES PDF

By Chris Poelker , Contributor, Computerworld About Insights into the inner workings of the computer storage industry -- the issues and trends that may affect you as an end user or an IT professional. Opinion Data deduplication in the cloud explained, part one Everyone is talking about the benefits of storing data to the cloud for sharing information among friends, to simplify moving data between different mobile devices, and for small businesses to back up and provide disaster recovery DR capabilities. But what about the massive amounts of data in enterprise data centers? How do cloud providers protect your data? How is the entire Internet protected?

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By Doug Lowe Beginning with Windows Server , Microsoft has included an innovative technology called data deduplication, which can dramatically reduce the amount of actual disk space required to store your data. Depending on the type of data, you can expect to save anywhere from 20 percent to more than 80 percent. At 20 percent savings, 10TB of data consumes only 8TB of disk storage.

At 80 percent savings, 10TB consumes just 2TB. Data deduplication works by finding portions of files that are identical and storing just a single copy of the duplicated data on the disk. The technology required to find and isolate duplicated portions of files on a large disk is pretty complicated.

Microsoft uses an algorithm called chunking, which scans data on the disk and breaks it into chunks whose average size is 64KB. These chunks are stored on disk in a hidden folder called the chunk store. Then, the actual files on the disk contain pointers to individual chunks in the chunk store. If two or more files contain identical chunks, only a single copy of the chunk is placed in the chunk store and the files that share the chunk all point to the same chunk.

Microsoft has tuned the chunking algorithm sufficiently that in most cases, users will have no idea that their data has been deduplicated.

Access to the data is as fast as if the data were not deduplicated. For performance reasons, data is not automatically deduplicated as it is written. Instead, regularly scheduled deduplication jobs scan the disk, applying the chunking algorithm to find chunks that can be deduplicated.

To use data deduplication, you must first enable the data deduplication feature in Server Manager. To configure data deduplication, open Server Manager, choose File and Storage Services, click Volumes, right-click the volume that you want to deduplicate, and then choose Configure Data Deduplication. The Deduplication Settings page appears. From this page, you can enable data deduplication, exclude certain file types, and set a schedule for the deduplication jobs to run.

Once deduplication is set up, give the deduplication job time to run.

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Data Deduplication in Windows Server

Kazrazilkree By contrast, deduplication only eliminates extra copies of data; none of the original data is lost. In source deduplication, data copies are eliminated in primary storage before the data is sent to the backup system. Oracle GoldenGate for Base The following coding and IT boot camp facts and statistics provide an introduction to the changing trends in education and training programs. What is Data Deduplication?

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Data Deduplication on Windows Server 2016

By Doug Lowe Beginning with Windows Server , Microsoft has included an innovative technology called data deduplication, which can dramatically reduce the amount of actual disk space required to store your data. Depending on the type of data, you can expect to save anywhere from 20 percent to more than 80 percent. At 20 percent savings, 10TB of data consumes only 8TB of disk storage. At 80 percent savings, 10TB consumes just 2TB. Data deduplication works by finding portions of files that are identical and storing just a single copy of the duplicated data on the disk.

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