Fabric Manager Users Guide, Version 6.1, Revision A - QLogic

2–Advanced Fabric Manager Capabilities
Performance Manager
Counter Classification
The PM classifies counters into a number of higher level conditions. Each
condition can be computed using counters on either side of the link (that is, the
associated port or its neighbor port). The computations and use of counters is
done such that the condition is associated with the port which is the most likely
root cause or the one which will be experiencing the results of the condition (such
as packet loss). Tools such as iba_top report the conditions for the associated
port. Detailed displays can then show the condition and the devices for both sides
of a link.
Figure 2-12 is an example of utilization. Bandwidth (MBps) and Packet Rate
(KPps)) are tallied on the send side, using the maximum of the associated port’s
send counters and the neighbor port’s receive counters
Figure 2-12. Utilization
Figure 2-13 is an example of condition. Integrity, Congestion, SmaCongestion,
Security, and Routing are tallied on receive side.
Figure 2-13. Condition
The conditions are shown in Table 2-1.
IB0054608-01 B 2-29