After running a successful DBUTLTY EXTEND on my data area , the URT open fails with CA Datacom Returncode 76(09).
Datacom RC 76(09) means OPEN ERROR, INSUFFICIENT TRACKS OPENED
An Index Area (IXX) or data area that has been initialized with or without extends has been opened, but not all tracks are present. The first block of a data set has information about the number of tracks formatted and accepted as useable within the data set. An open has been done and the operating system has not presented to CA Datacom/DB the full number of tracks that previously existed.
z/VSE CA Datacom 11.0 SP05
Recycle the Multi-User facility job after coding the new // EXTENT cards for this data area file in the JCL .