You can use any available Ethernet port to establish iSCSI connectivity between the Storwize  V5000 Gen2 system and the backend storage controller. Note:  If you are using onboard Ethernet ports on a Storwize V5010 or Storwize V5020  system, ensure that the onboard Ethernet port 2 on the system is not configured to be  used as the technician port. To avoid performance bottlenecks, the iSCSI initiator and target systems must use Ethernet  ports at the same speed. Do not use a combination of Ethernet links that run at different  speeds. For full redundancy and increased throughput, use two or more Ethernet switches. Similarly  numbered Ethernet ports on each node of each system must be connected to the same  switch. They must also be configured on the same subnet or VLAN. Figure 7-10 shows iSCSI connections between a Storwize V5030 system (iSCSI initiator) and  a Storwize V3700 system (iSCSI target). Figure 7-10 iSCSI connections between a Storwize V5030 system and a Storwize V3700 system 366  Implementing the IBM Storwize V5000 Gen2 with IBM Spectrum Virtualize V8.2.1