Dell PowerConnect Brocade M6505 Brocade 7.1.0 Fabric Watch Administrator's Gui - Page 35

Threshold triggers 2 Above event trigger Set the Above event trigger for an element that requires only high threshold monitoring. In the Above event trigger, Fabric Watch triggers an event immediately after the data value becomes greater than the high threshold. Define a buffer zone within the operational limit of an area to suppress multiple events when the counter value goes above the high threshold and fluctuates around it. The next event will not occur until the counter value falls below the buffer zone created by the high threshold. Figure 2 shows an Above event trigger with a buffer zone. The Above event trigger occurs when the counter crosses the high threshold (event 1 in Figure 2). When the data value becomes less than the high threshold and buffer value, Fabric Watch triggers a second event (Event 2) to indicate that it has returned to normal operation. The second event will not be triggered until the counter value falls below the high threshold and buffer values. FIGURE 2 Above event trigger with buffer zone Below event trigger The Below event trigger generates an event when a data value becomes less than the low threshold boundary. When a buffer is defined, the event will be triggered only when the value goes below the lower threshold. A second event will not be generated until the value crosses the buffer region set above the lower threshold. Audit and RASlog messages Fabric Watch generates an Audit message along with a RASlog message when the current threshold exceeds the high threshold limit configured for the following thresholds: • SCSI reservation • Class 3 discards (C3TXT0) • Switch memory usage • Switch flash usage • Switch CPU usage Fabric Watch Administrator's Guide 15 53-1002752-01