In the restart step or following steps, do not use the original relative generation numbers to refer to generation data sets that were created and cataloged before the restart step. Instead, refer to a generation data set by its present relative generation number.

For example, if the last generation data set created and cataloged was assigned a generation number of +2, refer to it as 0 in the restart step and following steps. If generation data set +1 was also created and cataloged, refer to it as -1.

If generation data sets created in the restart step were kept instead of cataloged, that is, DISP=(NEW,CATLG,KEEP) was coded, then refer to them by the same relative generation numbers used to create them.