You can use the management GUI or the command-line interface to add copies to HyperSwap volumes.
The addvolumecopy command adds a copy to a HyperSwap volume, which changes a basic volume into a HyperSwap volume with copies on two separate sites. Before you add a copy to convert a basic volume to a HyperSwap volume, the system must be configured as a HyperSwap system topology. To change a basic volume to a HyperSwap volume in the management GUI, select and right-click the basic volume and select Add Volume Copies. On the Add Volume Copies page, select HyperSwap for the volume type and specify the pools at each site where the copies are located.
addvolumecopy -pool site2pool volume5
where site2pool is the storage pool on the other site.