DFS0300I OUTPUT DATA SET SPECIFIED BY DDNAME ddname WAS NOT SUCCESSFULLY CLOSED
Explanation
During Database Image Copy 2 (DFSUDMT0) utility processing, data set close was unsuccessful or was not attempted (by DFSMSdss) for the output data set indicated by ddname. The data set is therefore not usable as an image copy.
System action
Image copy processing continues for the input DBDSs if there is another output copy (primary or secondary) that has not encountered an error. Otherwise processing fails for the DBDSs and message DFS3144A is issued.
Operator response
Submit another Image Copy 2 job to copy any DBDSs for which image copy processing failed.