HP StorageWorks 2/16V Brocade Fabric Watch Administrator's Guide (53-1000243-0 - Page 30

Buffer Values, Configuring Events, Threshold Monitoring, A Buffered Data Region

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1 Configuring Events Buffer Values Figure 1-1 shows an example in which each time a signal crosses the high limit, an event occurs. The arrows indicate the points at which the event criteria is met. In this case, there is a great deal of fluctuation. Even when the monitor is set to triggered, a number of messages are sent. Figure 1-1 Threshold Monitoring You can use buffer values to reduce the occurrence of events due to data fluctuation. When you assign a buffer value, it is used to create a zone below the high threshold and above the low threshold. When values cross above the high threshold or below the low threshold, an event occurs. Figure 1-2 shows how to limit the number of event notifications using a buffer. When you specify a buffer, events cannot occur below the high threshold and above the low threshold. Event notification occurs only where the arrows indicate. The event criteria is continued to be met until the data sensed falls below the low threshold value or above the high threshold value. Figure 1-2 A Buffered Data Region 1-14 Fabric Watch Administrator's Guide Publication Number: 53-1000243-01

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1-14
Fabric Watch Administrator’s Guide
Publication Number: 53-1000243-01
Configuring Events
1
Buffer Values
Figure 1-1
shows an example in which each time a signal crosses the high limit, an event occurs. The
arrows indicate the points at which the event criteria is met. In this case, there is a great deal of
fluctuation. Even when the monitor is set to triggered, a number of messages are sent.
Figure 1-1
Threshold Monitoring
You can use buffer values to reduce the occurrence of events due to data fluctuation. When you assign a
buffer value, it is used to create a zone below the high threshold and above the low threshold. When
values cross above the high threshold or below the low threshold, an event occurs.
Figure 1-2
shows how to limit the number of event notifications using a buffer. When you specify a
buffer, events cannot occur below the high threshold and above the low threshold. Event notification
occurs only where the arrows indicate. The event criteria is continued to be met until the data sensed falls
below the low threshold value or above the high threshold value.
Figure 1-2
A Buffered Data Region