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

9
Fibre Channel Only Performance
Figure 8 shows the performance results for the 4-Gb Fibre Channel ports using 256KB
sequential read, write, and bi-directional disk traffic being run through the card.
The following highlights show the excellent performance achieved during Fibre Channel
traffic testing:
• Disk write traffic achieved link rate on the rx6600 with one port achieving 407 MB/s
and two ports reaching 814 MB/s.
• Disk read traffic achieved link rate on the rx6600 with one port achieving 413 MB/s
and two ports reaching 826 MB/s.
• Disk bi-directional traffic achieved link rate on the rx6600 with one port achieving
819 MB/s and two ports reaching 1639 MB/s.
NOTE:
* bd = Bidirectional Operation (reads and writes simultaneously).
** MB/s = 1,000,000 (10
6
) bytes/second.
† Theoretical max = theoretical maximum throughput of a 4-Gb Fibre Channel link. This is slightly greater
than 400 MB/s because the 4-Gb FC specification allows for operation up to 4.25 Gb/s.
The above performance data is obtained by installing the AD222A adapter in a PCIe slot of the
rx6600 (slot 5 or 6).
Figure 8: AD222A Fibre Channel Throughput in rx6600
-
200
400
600
800
1,000
1,200
1,400
1,600
1,800
Fibre Channel
Megabytes per second
10^6 bytes/sec
rx6600 PCIe
407 814 413 826 819 1,639
1 fc write 2 fc write 1 fc read 2 fc read 1 fc bd 2 fc bd