556 Implementing the IBM Storwize V7000 with IBM Spectrum Virtualize V8.2.1
You can assign one IPv4 address and one IPv6 address to each Ethernet port on the system 
platforms. Each of these IP addresses can be shared between iSCSI host attach and the IP 
partnership. The user must configure the required IP address (IPv4 or IPv6) on an Ethernet 
port with a remote copy port group.
The administrator might want to use IPv6 addresses for remote copy operations and use IPv4 
addresses on that same port for iSCSI host attach. This configuration also implies that for two 
systems to establish an IP partnership, both systems must have IPv6 addresses that are 
configured. 
Administrators can choose to dedicate an Ethernet port for IP partnership only. In that case, 
host access must be explicitly disabled for that IP address and any other IP address that is 
configured on that Ethernet port. 
11.8.8  Supported configurations
The following supported configurations for IP partnership that were in the first release are 
described in this section:
/SM590000Two 2-node systems in IP partnership over a single inter-site link, as shown in 
Figure 11-98 (configuration 1).
Figure 11-98   Single link with only one remote copy port group configured in each system
Note: To establish an IP partnership, each IBM SAN Volume Controller node must have 
only a single remote copy port group that is configured, 1 or 2. The remaining IP addresses 
must be in remote copy port group 0.
Note: For explanation purposes, this section shows a node with 2 ports available, 1 and 2. 
This number generally increments when IBM SAN Volume Controller nodes model DH8 or 
SV1 are used.