How MERGECOPY determines which input copy to use

The MERGECOPY utility uses as input the image copies that match the current site.

If MERGECOPY is running at the local site, the local site image copies are chosen as the input to be merged. If MERGECOPY is running at the recovery site, the recovery site image copies are chosen as the input to be merged.

MERGECOPY does not accept a FlashCopy® image copy as input.