For general information about message IEC161I, see the explanation for return code 001.
Specific information for this return code: End of volume failed because no dummy UCB entry was found in the TIOT DDENTRY for the data set. The catalog indicated that a candidate volume was available to extend the data set onto a new volume, but there was no "SMS dummy" UCB entry for SMS VTOC/DSS to add another volume to the data set. This situation probably resulted from specifying fewer volume serial numbers on the DD card than were specified when the data set was defined.
Either do not specify volume serial numbers for the data set, or specify the same number that was specified when the data set was defined. If volumes were added to the data set after it was opened, then it must be closed, deallocated, and reallocated in order to gain access to the new volumes.
IDA0557B, IDA0557X
11
6