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Continuous data protection (CDP) technology still has an uphill climb to win over Storage magazine readers. Just 23% of respondents to our recent survey use a CDP product vs. the 33% who said they used CDP when we asked this question in late 2006. This time around, there are also fewer respondents who have plans to implement the technology. Sixty-three percent say they don't plan to use CDP in their backup environment vs. 37% of respondents in the previous survey. However, file-based CDP has gained ground over block-based CDP, which had been the most popular implementation of the technology. Fifty-five percent of respondents are proponents of file-based CDP vs. 44% in 2006, and application-based CDP usage has risen to 14% in the most recent survey. The primary reason respondents say they aren't using CDP is because they lack the resources for another data protection application.
This was first published in April 2008