A DUMP Data Set created by DFDSS can't be used for restore by a different User.
The RESTORE job failed with
*IEC135A U 0B01,vvvvvv,RESTAPE,STEP010,DAILY.BACKUP.G0019V00
*IEC514D DCK OR LBL ERR 0B01,vvvvvv,RESTAPE,STEP010,DAILY.BACKUP.G0019V00
*31 IEC514D REPLY 'M'-UNLOAD OR 'A'-ABEND
Only the User that created the tape can use it for RESTORE
Release : 12.6
Component : CA VTAPE