HP StorageWorks MSA 2/8 HP StorageWorks Fabric Watch V3.1.x/4.1.x User Guide ( - Page 45
Behavior Types, Alarms, Switch Event (Error) Log Entry, SNMP Trap
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Alarms Using Fabric Watch Behavior Types The behavior type (or mode) of a threshold determines the conditions under which Fabric Watch software registers an event. You can configure an area to respond to triggered or continuous behavior. Triggered Behavior In triggered behavior mode, Fabric Watch only registers an event when a variable exceeds a threshold. To trigger another event, the variable must cross the threshold again. For example, if the temperature of a switch exceeds its threshold while in triggered behavior mode, Fabric Watch only registers one event (an Above event) until the temperature returns to a value within the threshold, then exceeds the threshold again. Continuous Behavior In continuous behavior mode, Fabric Watch registers an event when a variable exceeds a threshold and continues to register an event every designated time interval until the variable falls within the threshold again. For example, if the temperature of a switch exceeds its threshold while in continuous behavior mode, Fabric Watch registers an Above event each time the behavior interval elapses until the temperature returns to a value within the threshold. SAN managers designate the time interval, or behavior interval. Fabric Watch software can notify SAN managers of events with a number of types of alarm. Certain alarms are active, others passive. Note: Alarms will only occur after you configure the fwalarmsfilterset command to 1. For more information, refer to fwalarmsfilterset on page 180. Switch Event (Error) Log Entry The switch event (error) log holds up to 1024 entries. This alarm stores event information for SAN managers, but does not actively alert SAN managers to events. Enter the ErrShow command to view the log. SNMP Trap The simple network management protocol (SNMP) performs an operation called a trap that notifies a management station (a workstation that runs network management applications using SNMP protocol) when events occur. SNMP Fabric Watch Version 3.1.x/4.1.x User Guide 45