C H A P T E R 4 |
Alarms |
This chapter summarizes the Alarm Rules that are specific to the supported platform components.
The chapter contains the following sections:
Each section provides information about error classes, default alarm levels, and recommended action to take when the alarms are triggered.
The hardware common config reader contains a number of alarm rules used by the system to determine the state of various components. Each alarm rule instance is applied to a specific property of a table in the config reader. A single rule can be applied to multiple properties and tables.
An alarm rule takes input from three main sources:
All three of these sources can be modified on a per-object and property basis. You can change user-specifiable values, while the rule programmer specifies which object properties and stored data are used.
You can assign actions to rule states and state transitions through the Sun Management Center console. Refer to the Sun Management Center User's Guide for more information. You can also modify the values mentioned in this chapter by editing the file ELP-base_ruleinit-d.x directly.
This rule is applied to any node that contains an Operational Status property. It generates an alarm if the operational state is anything other than OK, Starting, Stopping, or double dash (--). The error string incorporates the value of the Additional Information property to provide additional information to the end user.
Alarm Severity for the error class associated with the value of Operational Status. |
This rule associates specific values of the Operational Status property with specific error classes. Those error classes in turn determine the level of alarm that is generated for the associated values. TABLE 4-2 lists the possible Operational Status values with their associated error classes and default alarm levels.
You can edit the alarm levels associated with each error class. TABLE 4-3 lists the error classes for the Operational Status rule and their default alarm levels.
If an Alert or Critical alarm is generated, contact your Sun service representative.
The Caution alarm is for information only and is not an error. If necessary, contact your Sun service representative to help determine why the operations status is Unknown.
This rule is applied to any table with an Availability property.
Alarm Severity for the error class associated with the value of Availability. |
This rule associates specific values of the Availability property with specific error classes. Those error classes in turn determine the level of alarm that is generated for the associated values. TABLE 4-5 lists the possible Availability values with their associated error classes and default alarm levels.
You can edit the alarm levels associated with each error class. TABLE 4-6 lists the error classes for the Availability rule and their default alarm levels.
Contact your Sun service representative for information about correcting the problem.
This rule is applied to any non-numeric sensor. It uses the Current Reading in the error message.
This rule generates an alarm if the value of Current Reading does not match one of the values for the Normal Values property. In this case, an alarm is generated. The default alarm level associated with this error is Critical. TABLE 4-8 describes the property value, along with its associated error class and default alarm level.
Does not match any of the values of the Normal Values property |
You can change the alarm level associated with this Alarm error class.
Contact your Sun service representative for information about correcting the problem.
This rule is applied to any numeric sensor. It reads the various thresholds presented in the sensor, and generates an alarm if the current value is outside the specified ranges.
This rule generates an alarm when the value of Current Reading falls below any of the Lower Threshold values or rises above any of the Upper Threshold values. The level of alarm generated is determined by the error class associated with the threshold. TABLE 4-10 lists the possible threshold property values with their associated error classes and default alarm levels.
Note - When a Threshold is set to -- (double dash), this rule does not compare the value of Current Reading with it. |
You can edit the alarm levels associated with each error class. TABLE 4-11 lists the error classes for the Availability rule and their default alarm levels.
Contact your Sun service representative for information about correcting the problem.
This rule generates an alarm when the occupancy of a location changes.
Note - You can clear this alarm by acknowledging the alarm in the Sun Management Center console. All other alarms are cleared by a change of state. |
This rule generates an alarm if the value of Occupancy has changed since the last time it was checked. In this case, an alarm is generated. The default alarm level associated with this error is Caution. TABLE 4-13 describes the occupancy property value, along with its associated error class and default alarm level.
Does not match the previous value reported for this property. |
You can change the alarm level associated with this Alarm error class.
The Caution alarm is for information only and is not an error. If necessary, contact your Sun service representative to obtain more information about the value of the Occupancy property.
This rule enables you to specify a rate or count for any integer property. If the rate or count exceeds the specified values, an alarm is generated. Apply the rule to all properties that count a number of errors, so that you can generate such alarms as required.
This rule generates an alarm when one or both of the following is true for one of the properties:
Note - When the specified error count or error rate is set to less than zero, the rule does not check the error count or rate. If the alarm level is not greater than zero, no alarm will be generated. |
By default, the values are set to -1, so the rule does not check the error count or rate until you set it. You can change the values of the Error Count, Error Rate, and Alarm Level parameters. TABLE 4-15 describes these parameters and lists their default values.
Contact your Sun service representative for information about correcting the problem.
This rule applies only to the Module Status property in the system object. It is primarily used to report module data acquisition problems.
Alarm Severity for the error class associated with the value of Module Status. |
This rule generates an alarm of a certain level when a problem is encountered during data acquisition. The rule associates specific values of the Module Status property with specific error classes. Those error classes in turn determine the level of alarm that is generated for the associated values. TABLE 4-17 lists possible Module Status values with their associated error classes and default alarm levels.
You can edit the alarm levels associated with each error class. TABLE 4-18 lists the error classes for the Module Status rule and their default alarm levels.
If an Alert or Critical alarm is generated, contact your Sun service representative.
A Caution alarm might not be an error. Check the console data and contact your Sun service representative if data is missing or unexpected.
This rule applies only to the Indicator State property in the Indicator object.
This rule generates an alarm when the value of Indicator State does not match the Expected State. The default alarm level associated with this error is Caution. TABLE 4-20 describes the property value, along with its associated error class and default alarm level.
Note - When the value of Expected State is -- (double dash), this rule does not compare the value of Indicator State with it. |
You can change the alarm level associated with this Alarm error class.
Contact your Sun service representative for information about correcting the problem.
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