| Summary information | |
|---|---|
| Default value | 1 | 
| Range of values | UNIX: 1– 64 Windows: 1 | 
| Status | Dynamic | 
| Display level | Basic | 
| Required role | System administrator | 
| Configuration groups | Disk I/O, Processors | 
number of disk tasks controls the number of tasks dedicated to polling and completing disk I/Os.