SCHEDULE (command)

@SCHEDULE <device no> ... <device no>

This command is used to reserve devices for the current batch job, thus preventing errors from occurring if trying to use the devices already reserved by other users.

<device no>

is the octal value of the logical device numbers given in .

The most common device numbers are

2 Paper tape reader
3 Paper tape punch
4 Card reader
5 Line printer

If one of the specified devices is reserved by other users, the batch process will enter waiting state until they are released.

To prevent deadlock situations, no device can be used by the batch job before a SCHEDULE command is given. If it is, the error message

DEVICE ALREADY RESERVED

is given, and the batch job will be aborted.

References

Norsk Data Document ND–60.050.06 SINTRAN III USERS GUIDE section 3.7.5.2

Norsk Data Document ND–60.174.Q01 SINTRAN III QUICK REFERENCE CARD