4. Choose the desired topology. While Stretched Cluster is optimal for Disaster Recovery  solutions with asynchronous replication of primary volumes, HyperSwap is ideal for high  availability solutions with near-real-time replication. In our case, we decided on a  Stretched Cluster Configuration (Figure 5-88). 5. Assign hosts to one of the sites as primary. Right-click each host and modify sites for them  one by one (Figure 5-89). Also assign primary sites to offline hosts because they might be  down only for maintenance or any other reason. Figure 5-89 Assigning hosts to sites Figure 5-88 Changing topology Chapter 5. Graphical user interface  209