text: Figure 4-50 Modifying system topology Summary window 
  
  8. Before creating HyperSwap volumes, complete the following steps: 
  
  a. Assign hosts to sites. You can use the**chost -site site_id host_name**CLI command 
  to perform this step. 
  
  b. Assign virtualized iSCSI-based back-end storage to sites. You can use the 
  **chcontroller –site site_id storage_name**CLI command to perform this step. 
  
  Alternatively, you can run Add iSCSI External Storage wizard. To access the wizard, 
  select**Pools**→**External Storage**→**Add iSCSI External Storage**. 