系统内冗余或重复数据的度量,表明存储和潜在性能问题效率低下。
1 DF = 1.364 CS
1 CS = 0.733 DF
例子:
将15 数据保真度冗余转换为校验和冗余:
15 DF = 20.455 CS
| 数据保真度冗余 | 校验和冗余 |
|---|---|
| 0.01 DF | 0.014 CS |
| 0.1 DF | 0.136 CS |
| 1 DF | 1.364 CS |
| 2 DF | 2.727 CS |
| 3 DF | 4.091 CS |
| 5 DF | 6.818 CS |
| 10 DF | 13.636 CS |
| 20 DF | 27.273 CS |
| 30 DF | 40.909 CS |
| 40 DF | 54.545 CS |
| 50 DF | 68.182 CS |
| 60 DF | 81.818 CS |
| 70 DF | 95.455 CS |
| 80 DF | 109.091 CS |
| 90 DF | 122.727 CS |
| 100 DF | 136.364 CS |
| 250 DF | 340.909 CS |
| 500 DF | 681.818 CS |
| 750 DF | 1,022.727 CS |
| 1000 DF | 1,363.636 CS |
| 10000 DF | 13,636.364 CS |
| 100000 DF | 136,363.636 CS |