Reference Guide

8
OMCI Alerting
Local alerting involves displaying user messages and writing to the Windows event log. Remote alerting is accomplished
through WMI indications. When OMCI detects an event, it generates an alert, which can be transmitted through the
WMI service to a remote management application that is subscribed to that alert type.
When an alert is generated, OMCI supports three types of notification:
• NT event log
• Remote
• Console
In OMCI, each type of event (for example, CurrentProbe, TemperatureProbe, Smart, and so on) that gets logged is
provided with an unique event ID number. The events have unique IDs to allow log scraping; this way you can
programmatically look at the event log and determine what OMCI events have occurred.
You are also provided with an option to receive either a single alert or a limited number of alerts of the occurrence of an
event, of a given type. You can mask out specific events and can generate single alert messages for only those events.
The Dell_IndicationStaticValues class has the MaxNTEventLogNotifications, MaxDisplayNotifications, and the
OccurrencesCount properties, which control the number of notices of each alert condition that are sent to the NT event
log and to the local display. For example, setting a value of 0 will not send any notices.
You can change any attribute or CIM class through standard CIM editors. The following properties in the
Dell_IndicationStaticValues class control the number of notifications of each alert condition that are sent to the NT
event log and to the display. You can modify the below listed values through standard CIM editors or through scripts.
• MaxNTEventLogNotifications — The maximum number of event notifications sent to the NT event log. Values
are:
– 0=never send
– 1=first occurrence only
– 2=first and second occurrences
The special value of –1 sends all occurrences. The default value is –1.
• MaxDisplayNotifications — The maximum number of event notifications sent to the local display. Values are
0=never send, 1=first occurrence only, 2=first and second occurrences, and so on. The special value of –1 sends
all occurrences. The default value is –1.
• OccurrencesCount — The number of event notifications of the given alert that have occurred since the last
reset. The initial value is 0. Setting OccurrencesCount to 0 restarts the sending of notices.
Since the instances of the Dell_ IndicationStaticValues class are stored in the WMI repository, the above data is
persistent across shutdown, restart, sleep, hibernate, and standby modes. You can reset the OccurrencesCount at
reboot by installing a script to run at startup.
NOTE: You are not allowed to make changes to some properties including the MaxDisplayNotifications and
MaxNTEventLogNotifications in the Dell_IndicationStaticValues class in the CIM repository unless the User
Account Control (UAC) in Windows Vista is turned off, or the user is the Administrator account.
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