For Setup 2, only the Data disk is replicated without the System disk. The possible advantages as well as disadvantages are explained in the table below for such type of configuration:
Type of setup
Advantage
Disadvantages
Setup 2: Replicating the Data disks
If guest image is corrupted due to a crash, the image on the Secondary remains unaffected.
Users have to manually ensure that the state of Primary and Secondary system is similar.