| Timothy Gibson and Ethan Miller, " An Improved Long Term File Usage Prediction Algorithm," Annual International Conference on Computer Measurement and Performance (CMG '99), Reno, NV, December 1999 |
....archives historically have been read only [2] At the CFS conversion time, the size of the archive was 2 TB. UniTree was used primarily to store files that were never retrieved. The older the data, the lower the chance it would ever be recalled. Researchers try to predict what files will be used [3], but over the years, the reuseability of the files has changed dramatically. In 1992, as the graph below illustrates, 18 of files up to three months old were retrieved, at six months 12 were retrieved, and after 12 months 3 were recalled. Performance of the archive was unacceptable, and ....
Timothy Gibson and Ethan Miller, " An Improved Long Term File Usage Prediction Algorithm," Annual International Conference on Computer Measurement and Performance (CMG '99), Reno, NV, December 1999
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