HP 2G PCI-X 2 Gigabit Fibre Channel and Gigabit EthernetPerformanceUsing the H - Page 9

Throughput FC Traffic Alone Compared to FC Traffic in Conjunction with GigE Bidirectional Figure 5 250 PCI-X Fibre Channel Read Performance 200 MBytes/sec 150 100 191 191 191 50 191 191 191 1 Cell 2 Cells 4 Cells 0 Rd Rd + G igE BD Figure 5 shows PCI-X Fibre Channel Read (Rd) performance. With 1, 2, or 4 cells configured, the following throughput rates were achieved: • Read throughput on the FC port with no GigE traffic on a 1 cell partition is an excellent 191 MBytes/sec. As the partition size is increased by adding up to 3 more cells, read throughput shows no drop in performance. A similar pattern emerges when FC read and GigE bidirectional are combined. FC read throughput is 191 MBytes/sec with no change as partition size is increased. • When tested in a PCI-66 slot, the performance results for read only throughput are identical to PCI-X performance. When FC read and GigE bidirectional traffic are combined, PCI-66 performance is 157 MBytes/sec with no change as partition size increases. 9