Explanation: FAILEDCREATE is an optional parameter used when you specify LIST TAPETABLEOFCONTENTS without the volser.
FAILEDCREATE lists only the volumes that have not been created.
If DFSMShsm issues message ARC0378I, it indicates the TTOC for a volume is incomplete. Use LIST TAPETABLEOFCONTENTS SELECT(FAILEDCREATE) to list all volumes that have incomplete data set information saved in the OCDS TTOC record.