Brocade Fabric Watch Administrator's Guide Supporting Fabric OS v6.0.0 (53-1000601-01, October 2007)

Fabric Watch Administrator’s Guide 11
53-1000601-01
Configuring events
1
Continuous event behavior
Areas with event behavior types set to continuous trigger events in every sample period until the
fabric no longer meets the criteria defined for the event.
For example, you can configure Fabric Watch to notify you during every sample period that a port is
at full utilization. This information can help you plan network upgrades.
Triggered event behavior
If you do not want notification during each sample period from the port hardware failure to the time
of its repair, you can define the event behavior as triggered.
When an event behavior is defined as triggered, Fabric Watch sends only one event notification
when the fabric meets the criteria for the event. It does not send out any more notifications.
For example, when a port fails, Fabric Watch sends you a notification of the failure. After you repair
the port, Fabric Watch detects the repair. At this time, Fabric Watch determines that the fabric no
longer meets the event criteria, and watches for the error again. The next time the port fails, it
sends you another notification.
Data values
A data value represents three aspects of a fabric: counter value, measured value, or state value.
Data values are updated by Fabric Watch approximately every six seconds, an interval that you
cannot change.
Counter value is the total number of times that a given event has occurred. For each monitored
event during the time period, the value is incremental.
Measured value is the current, measurable value of a fabric or fabric element, such as
environmental temperature or fan speed.
State value, which is the only qualitative data value, provides information on the overall state of a
fabric component, such as the physical health of a fan. Instead of numerical data, state values
contain information on whether components are faulty, active, or in another state.
Fabric Watch compares counter values and measured values to a set of configurable limits to
determine whether fabric monitoring has occurred and whether to notify you. You must set
appropriate threshold boundaries to trigger an event.
State values are handled differently, as Fabric Watch monitors state values for certain states,
which you can select. When a state value transitions to one of the monitored states, an event is
triggered.