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Conflict Processing z/OS DFSMS Installation Exits SC23-6850-01 |
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In an environment where a single exit routine exists, the result of calling the routine is straight forward. However, the existence of multiple exit routines is permissible. For this case extensive conflict checking is done to ensure that the exits do not return conflicting information. Whenever a conflict is detected the volume will not be labeled. Typically a single exit routine will take ownership of the volume and indicate what the result of the labelling request is to be. Ownership is implied by returning a return code 0 or 8. Routines that do not take ownership of the volume should return a return code of 4. Once again, in a multiple exit routine environment, more than one
routine can take ownership of a volume and the volume will be labeled
as long as there is no conflict in the information returned from any
of the routines. A conflict will be indicated when:
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