...is the difference between HbA card and HCA card) - 豆丁网
A node of WWN (WWNN), which is a shared host bus adapter for all ports, a port of WWN (WWPN), which is unique to each port. The HBA model has different speeds: 1Gb capacity / sec, 2Gbit / sec, 4Gbit / s, 8Gbit / s, 10Gbit / s, and 20Gbit / S ...