IEC401A

Explanation
F indicates that the volume on the device for the
output data set is file protected. That is, its file protection ring
is not inserted or its tab is set to prevent a write, so it can only
be read. However, the volume is to be written on.
In the message
text: dev
The device number of the specified device.
ser
The six-digit volume serial number.
dsname
The data set name.

System action
The system rewinds and unloads the volume.

Operator response
Insert a file protection ring in the volume,
mount the volume, and ready the device.

Source
DFSMSdfp

Module
IGC0K05B

Routing code
3

Descriptor code
2