IGD17358I

Explanation
DFSMSdfp issues this message
when an attempt to create a new generation of a GDS fails because
a generation with the same name exists but has not been rolled in.
The failure occurs because the user specified GDS_RECLAIM=NO in the
IGDSMSxx member of SYS1.PARMLIB or used the SETSMS
command to specify GDS_RECLAIM=NO.
In the message text:
dsn
The data set name.

System action
The allocation request for the data set fails.

Operator response
If the user specified GDS_RECLAIM=NO erroneously,
reset it to YES.

System programmer response
Refer to the application programmer
response.

Programmer response
If the user specified GDS_RECLAIM=NO erroneously,
then contact the system operator to reset it to YES.
Otherwise, take steps either to roll the data set that is causing
this problem into the GDS or to rename or delete the data set.

Source
DFSMSdfp

Module
IGDVTSCR

Routing code
2

Descriptor code
4