Joined: 26 Apr 2004 Posts: 4650 Location: Raleigh, NC, USA
You can delete the GDG base using the Access Method Services DELETE command, as described here.
To create the first generation, you can use either absolute or relative generations. See Chapter 29. Processing Generation Data Groups in the z/OS V1R6.0 DFSMS: Using Data Sets manual.
Joined: 03 Jan 2006 Posts: 13 Location: Bangalore india
Hi Sahoo,
Writing 'D' against the GDG base will not delete it as GDG base entry is not treated as ordinary entry.
Try 'DE' and it should work. 'DE" is short for "DELETE'. This is for extra safety so you delete accidently and loose all the generations. 'DE' you will write only intentionally.