DSNU463I csect - THE xxxxxxx IMAGE COPY DATA SET data-set-name WITH DATE=dddddd AND TIME=tttttt, IS PARTICIPATING IN MERGECOPY.

This informational message indicates the image copy that is used in the merge process. The variables have the following meanings:

xxxxxxxx

PRIMARY or BACKUP, indicating a primary or backup image copy

data-set-name

The image copy data set name

dddddd

The image copy date

tttttt

The image copy time