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 SDR = 1.2 DF
1 DF = 0.833 SDR
例子:
将15 太空司令转换为数据保真度冗余:
15 SDR = 18 DF
| 太空司令 | 数据保真度冗余 |
|---|---|
| 0.01 SDR | 0.012 DF |
| 0.1 SDR | 0.12 DF |
| 1 SDR | 1.2 DF |
| 2 SDR | 2.4 DF |
| 3 SDR | 3.6 DF |
| 5 SDR | 6 DF |
| 10 SDR | 12 DF |
| 20 SDR | 24 DF |
| 30 SDR | 36 DF |
| 40 SDR | 48 DF |
| 50 SDR | 60 DF |
| 60 SDR | 72 DF |
| 70 SDR | 84 DF |
| 80 SDR | 96 DF |
| 90 SDR | 108 DF |
| 100 SDR | 120 DF |
| 250 SDR | 300 DF |
| 500 SDR | 600 DF |
| 750 SDR | 900 DF |
| 1000 SDR | 1,200 DF |
| 10000 SDR | 12,000 DF |
| 100000 SDR | 120,000 DF |