How to restore a POWER spool file backup (POFFLOAD) version other than the current one?

Document ID : KB000050504
Last Modified Date : 14/02/2018
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Description:

On sites where many generations (or many days) of the Power spool file are saved, a method should be available to restore (or upload) one of these generations.

Solution:

Example for 3 generations (3 days):

  1. These JCL statements would be added to the standard labels after DYNAM is started:
    // TLBL OFFLA,'OFFL.CL.A,Z,DL'           This is the standard for output or ver=1// TLBL OFFLA2,'OFFL.CL.A,(-1),Z,DL'     This is for the father// TLBL OFFLA3,'OFFL.CL.A,(-2),Z,DL'     This is for the grandfather
  2. To upload the father, this command would be entered at the console:
    POFFLOAD LOAD,LST,CAA,,X,TLBL=OFFLA2

Note: CAA is the POWER Dummy CUU.