Performance and Recommended Use of AB290A Combination 2-Port U320 SCSI / 2-Port Gigabit Ethernet Cards

Table Of Contents

Performance Summary

The AB290A card provides excellent performance when used in accordance with the

recommendations in this paper. Figure 3 summarizes the performance results possible when

many different types of traffic combinations are used with the recommended models.

Figure 3

AB290A Performance Summary in rx4640

The graph shows the average sustained unidirectional throughput relative to base rate

measured on:

• Either 1 or 2 Gigabit Ethernet ports,

• Either 1 or 2 U320 SCSI ports, or

• A combination of 1 U320 SCSI port and 1 Gigabit Ethernet port, or

• A combination of 2 U320 SCSI ports and 2 Gigabit Ethernet ports.

The AB290A has excellent performance. Averages range from 73.5-99.8% of base rate on

the rx4640 system with different combinations of traffic types. The summary includes results

for all 4 ports running sustained simultaneous traffic.

Many of the different types of traffic combinations achieve link rate and will be discussed in