Performance and Recommended Use of AD222A, AD393A, and AD221A PCIe Combination 4-Gbit/s Fibre Channel and Gigabit Ethernet Cards

10
IOPS tests were also run to demonstrate the capability of the adapter to handle traffic of
this nature. IOPS tests were obtained by using a block size of 1KB.
Figure 9: AD222 Fibre Channel IOs per Second
0
50000
100000
150000
200000
250000
IOs Per Second
IOPS
95946 103475 112230 198864 212759 232929
Sequential Write Sequential Bi-Dir Sequential Read Sequential Write Sequential Bi-Dir Sequential Read
1 Port 2 Ports
Figure 9 shows the number of I/O transactions per second for sequential read, writes and
bi-directional operations on single and dual ports of the AD222A measured on an 8-way
rx6600. The X-axis is the number of ports and the Y-axis the number of I/O operations
per second.
Figure 9 shows excellent linear scaling of IOPS for single and dual ports. The number of
read operations per second for single port and dual ports are 112,230 and 232,929
respectively. The number of write operations per second for single port and dual ports are
95,946 and 198,864 respectively. While the number of bi-directional operations per
second for single port and dual ports are 103,475 and 212,759 respectively. The IOPS
metric is limited by the I/O processing overhead on the AD222A. The chart demonstrates
excellent IOPS numbers on both the ports of the AD222A.