gtps4m16System Generation

Database Device Capacity

The SIP IODEV macro is used to specify the characteristics and system requirements for input/output devices, including DASD. Table 7 shows the data capacities of DASD supported by TPF.

Table 7. Direct Access Storage Device Capacities

Device Type Cylinders/ Module Tracks/ Cylinder Number of 1055 records/track Number of 381 records/track Number of 4K records/track
3350 555 30 15 34 4
3375 959 12 25 46 8
3380 885 *
1770 **
2655 ***
15 30 53 10
3390 1113 *
2226 **
3339 ***
10017
15 33 55 12
9345 1440 *
2156 **
15 27 47 10

*
Single Capacity

**
Double Capacity

***
Triple Capacity

The 3390 capacities listed above are for native mode 3390s. For 3390s in 3380 emulation mode, use the 3390 cylinders/module; for the records/track, use the same values as the 3380s. The cylinders/module and tracks/cylinder values are unaffected by the mode.