You can use the ATTIME suspend function in Business Continuity Manager to set and register backup time to a ShadowImage for Mainframe pair combined with a TrueCopy for Mainframe pair. This backup is called split processing. The time at which the split processing is performed is called the split time.
The ATTIME suspend function can be used for the primary volume of a ShadowImage for Mainframe pair combined with the primary volume of a TrueCopy for Mainframe pair. The function can also be used for the primary volume of a ShadowImage for Mainframe pair combined with the secondary volume of a TrueCopy for Mainframe pair.