SSD need better delete algorithm

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POSTER: computer news   ||   SSD NEED BETTER DELETE ALGORITHM	DATE:2011-02-21
Passage from the magnetic plate to solid-state memory as the data storage already entailed some specific changes in the algorithms of work with data. For example, we can note at least the command TRIM, which compensate reduction in the operating speed of solid-state disk after time. Trim also detect defective cells  substitute by newer. Scientists from the University of California San- Diego, explained that the removal of information in the case with the solid-state disk do not always prove to be effective. The built-in commands, which destroy all data on the SSD, is not realized correctly by SDD producers . Second method of  data removal  - use special utilities from strange developers. Here it was possible to explain that in the majority of cases to solid-state disk two pass are sufficient  in order to reliably destroy information. Basic problems are observed with the removal of selective files - here the effectiveness of traditional utilities is lower than in the case with magnetic disk. In the course of study it was established that from 4% to 75% of data removed in this case remain protected. Related Products :

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