The usage of optical volume space is affected by the size of the objects and how the objects are written: chained by the storage management cycle or unchained by direct write to optical media. Table 1 provides an estimate of optical volume usage for media used with a operator-accessible optical drive.
Object size in KB | Effective utilization | |
---|---|---|
Data written by storage management cycle (chained) | Data written directly to optical volume (unchained) | |
40␠000 | 100% | 93% |
20␠000 | 100% | 47% |
10␠000 | 100% | 23% |
5␠000 | 100% | 12% |
4␠000 | 100% | 9% |
3␠000 | 84% | 7% |
2␠000 | 56% | 5% |
1␠000 | 28% | 2% |
Related reading: For 3995 capacity information, see 3995 Introduction and Planning Guide.