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The Data Deduplication Revolution

  • The Data Deduplication Revolution-

    This is the headline of many pieces of deduplication marketing, as this speaks directly to the space savings that the organization is going to achieve. The reality is that the deduplication ratio is affected by many factors; the data, the change rates of the data (few changes mean more data to deduplicate), the location of the data, the backup schedules (more fulls makes compression effect higher), and perhaps least by the deduplication algorithm. 95% reductions in disk usage are achievable, however, organizations should be pleased if the savings are over 50%, as these still represent big reductions in capital and operational spending.

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The Data Deduplication Revolution

  • 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11
  • The Data Deduplication Revolution-9

    This is the headline of many pieces of deduplication marketing, as this speaks directly to the space savings that the organization is going to achieve. The reality is that the deduplication ratio is affected by many factors; the data, the change rates of the data (few changes mean more data to deduplicate), the location of the data, the backup schedules (more fulls makes compression effect higher), and perhaps least by the deduplication algorithm. 95% reductions in disk usage are achievable, however, organizations should be pleased if the savings are over 50%, as these still represent big reductions in capital and operational spending.

The term data deduplication increasingly refers to the technique of data reduction by breaking streams of data down into very granular components, such as blocks or bytes, and then storing only the first instance of the item on the destination media, and then adding all other occurrences to an index. Because it works at a more granular level than single instance storage, the resulting savings in space are much higher, thus delivering more cost effective solutions. The savings in space translate directly to reduced acquisition, operation, and management costs.

Data deduplication technologies are deployed in many forms and many places within the backup and recovery infrastructure. It has evolved from being delivered within specially designed disk appliances offering post processing deduplication to being a distributed technology found as an integrated part of backup and recovery software. According to CA Technologies, along the way solution suppliers have identified the good and bad points of each evolution and developed what today are high performance efficient technologies.

This slideshow looks at data deduplication and five areas, identified by CA Technologies, that you should consider carefully when approaching a data deduplication project.

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