130 Implementing the IBM Storwize V7000 with IBM Spectrum Virtualize V8.2.1
7. Review the summary and click Finish to complete system topology change, as shown in 
Figure 4-50.
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.