gtps4m16 | System Generation |
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 |
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.