Brocade Network Advisor SAN + IP User Manual v12.1.0 - Manual (Page 1542)

Brocade Network Advisor SAN + IP User Manual 1495
53-1002949-01
Thresholds and event notification
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Thresholds and event notification
Performance monitoring allows you to apply thresholds and event notification to real-time
performance data. A performance monitor process (thread) monitors the performance data against
the threshold setting for each port and issues an appropriate alert to notify you when the threshold
is exceeded. For information about configuring event notification, refer to
“Event notification” on
page 1708.
NOTE
It is not necessary to configure event notification to receive events in the Master Log. If the threshold
is exceeded for a threshold, an event is automatically generated and displayed in the Master Log.
NOTE
If you set the threshold for a particular critical event to 100 percent, by the time you are notified, it
may be too late to prevent a failure. However, when you set the threshold to 85 percent, for example,
you may be able to prevent the failure from occurring.
Example
The values at 1 second, 3 seconds, and 5 seconds generate events because they exceed
boundaries. The value at 2 seconds does not generate an event because, although it crosses the
boundary, it remains in the buffer zone. The value at 6 seconds generates an event because it
crosses the lower boundary and returns to a value beyond the buffer zone. The example is shown
as a graph in
Figure 642 on page 1495.
FIGURE 642 Threshold example
Creating and editing a threshold policy
To create or edit a threshold policy, complete the following steps.
1. Select Monitor > Fabric Watch > Performance Thresholds.
The Set Threshold Policies dialog box displays, as shown in Figure 643 on page 1496.