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Chapter 17 Managing Data Property Attributes Using the Web ConsoleThis chapter explains the following topics: Overview of Module Data PropertiesThe module data properties provide additional information about the modules. The Attribute Editor in the web console provides the same capabilities as the Attribute Editor in the Java Console, which is described in Chapter 10, Monitoring Data Property Attributes. You can use the Attribute Editor to customize the monitoring criteria for the module data properties. Specifically, the Attribute Editor enables you to perform the following tasks:
The Attribute Editor in the web console has one or more tabs at the top of the page that enable you to switch between different panels. These tabs differ depending on the selected object. The possible tabs are described in the following sections: Note – Each Attribute Editor displays one or more of these tabs, depending on the specific object to which an instance of the Attribute Editor applies. Info Tab in the Web Console Attribute EditorThe Attribute Editor Info page provides additional information about the selected object, such as:
Alarms Tab in the Web Console Attribute EditorThe Alarms tab enables you to set alarm thresholds only for those data properties that have associated simple alarms. These simple alarms use the rCompare rule, which is described in Appendix D, Sun Management Center Software Rules. The Attribute Editor Alarms page enables you to set alarm thresholds for simple alarms only. Note – To set an alarm threshold, you must have the appropriate security permission. For more information, see Chapter 18, Sun Management Center Security. The alarm management software offers you the following flexibility in setting your alarms:
Simple alarms are based on thresholds. A monitored data property is greater than, less than, not equal to, or equal to a single threshold value. By contrast, complex alarms are based on a set of conditions. For more information about alarm rules, see Appendix D, Sun Management Center Software Rules. The following table lists common simple alarm limits for monitored properties. The alarm limits are also displayed in the Parameter Description field. You can set thresholds for one or more of these alarm limits for selected data properties. Table 17–1 Common Simple Alarm Limits in Sun Management Center Software
Actions Tab in the Web Console Attribute EditorThe Attribute Editor Actions page enables you to instruct the software to perform a predetermined action if an alarm occurs. Note – Acceptable actions include scripts that are stored in the /var/opt/SUNWsymon/bin directory. These scripts execute with root permissions. For example, you can provide the name of a script in the critical action field. This script might send an email to a system administrator whenever a critical alarm is generated for the Load Average Over the Last 5 Minutes data property. You can set separate actions for different alarm conditions. You can also define a single action to occur when any change happens to any of the alarm conditions. To define actions, you use the Action buttons on the Actions page. Note – The check boxes that are to the right of the Action buttons enable you to specify automatic or manual execution of a specific alarm action. By default, all actions are set for manual execution. Only manual actions can be modified. Use the Alarm Action Modification dialog box to modify the registered alarm actions. Two buttons in the dialog box (Email and Generic) allow you to choose one of two options for an alarm action.
Refresh Tab in the Web Console Attribute EditorUse the Refresh page in the Attribute Editor to set the refresh interval for this object. The refresh interval is the interval between the times when the Sun Management Center agent samples the monitored property. For more information, see To Specify How Often the Data Display Updates. History Tab in the Web Console Attribute EditorUse the History page in the Attribute Editor to save older data for a monitored property. For example, you might choose to record a history of data points every 120 seconds as identified in the sample interval. You can also specify whether to store this information in a disk file or in the memory cache. The two types of disk files are circular, which has a maximum of 1000 lines, and text. These files are located in the /var/opt/SUNWsymon/log directory in the file that is specified in the Text File Name field. A circular disk file is automatically saved under the name history.log. If you do not choose a file name for your text file, data are automatically saved under the name agent_default.history. If you select memory cache, you must indicate in the Max Size (sample) field the number of data points to save. For example, if you set this field to 1000, only the most current 1000 data points are stored in the memory cache. Any older data points are discarded. These data points can be graphed. See Chapter 9, Viewing Data Properties in a Graph for more information. Note – You can view history data in a graph by opening the graph for the specific monitored property. If you have selected memory cache, the graph is displayed with historical data. Using the Attribute Editor in the Web ConsoleThe procedures in this section explain how to view specific attributes, change the refresh interval, and modify history information in the web console attribute editor.
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Date: Wed, 30 Jun 1999 15:25:39 -0800
From: root@MachineB (0000-Admin(0000))
Subject: Sun Management Center - Alert Alarm Action
Mime-Version: 1.0
Sun Management Center alarm action notification ...
{Alert: machineB Kernel Reader Load Average Over The Last 5 Minutes > 0.01Jobs}
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To Define and Use an Alarm Action Script
The following procedure describes how to customize an alarm action to automatically notify a user when an alarm condition occurs.
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Create the script using the following arguments:
- %statusfmt
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The alarm severity, such as Warning, Critical, and so on.
- %statusstringfmt
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The complete alarm string, including severity. (For example: Critical: Machine A Kernel Reader Number of User Sessions > 10)
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At the command-line level, become superuser.
# su -
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Install the script in the home Sun Management Center directory.
The default is the /var/opt/SUNWsymon/bin/ directory. For example:
# cp custom-alarm-script /var/opt/SUNWsymon/bin/
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Click the Host Details Browser tab.
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Set the alarm threshold.
For more information, see To Define an Alarm Condition.
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Click the System Load Statistics icon.
The properties table for System Load Statistics is displayed in the contents view of the Host Details Browser page.
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Select the Value column for Load Average Over Last Five Minutes.
The Attribute Editor Info page is displayed.
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Click the Attribute Editor Actions tab.
The Actions page appears.
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Click the Action button for the Critical Actions field.
The Alarm Action Modification dialog box appears.
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Click the Other button.
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Select custom-alarm-script from the Available Scripts menu.
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Type the following string in the Arguments field:
%statusstringfmt
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Click OK to apply your changes and close this page.
The script file name is displayed in the Critical Action field on the Actions page.
To Modify Alarm Actions
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Click the Action button for the alarm action that you want to modify.
The Alarm Actions modification dialog box is displayed.
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Select the type of alarm action that you want to modify (Email or Other).
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Make your changes in the fields of the selected action.
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Click OK to accept the changes and close the page.
The change is displayed in the corresponding Action field of the Actions page.