5.11.2 Host information
JP1/IM - Manager (Central Scope) has its own host information database to manage host information (IP addresses and the corresponding actual host names).
The processing carried out by JP1/IM - Manager (Central Scope) includes managing the JP1 events occurring on the agents and automatically generating monitoring trees from definition information. JP1/IM - Manager must therefore recognize the host names and IP addresses of the agents correctly, and associate the right information.
To prevent discrepancies between the host names recognized by other products and those recognized by JP1/IM - Manager (Central Scope), association information can be stored in the JP1/IM host information database.
The host names that need to be registered in the host information are as follows:
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The host name for which Host name comparison is selected in individual conditions for monitoring objects
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The following host names when using auto-generation of monitoring trees:
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The host names managed by JP1/AJS or other linked product
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The host names defined in the JP1/IM configuration definition
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To find host information that is not registered in the host information database, JP1/IM - Manager (JP1/IM - Central Scope) references the settings in the JP1/Base jp1hosts information or p1hosts2 information, the OS hosts file, and the DNS.
We recommend that you select Host name comparison when specifying a host name in an individual condition for a monitoring object.
- About host information:
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Format of the host information file
See Host information file (jcs_hosts) in Chapter 2. Definition Files in the manual JP1/Integrated Management 2 - Manager Command, Definition File and API Reference.
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Commands for setting and referencing host information
See jcshostsimport in Chapter 1. Commands in the manual JP1/Integrated Management 2 - Manager Command, Definition File and API Reference.
See jcshostsexport in Chapter 1. Commands in the manual JP1/Integrated Management 2 - Manager Command, Definition File and API Reference.
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How to specify a host name in an individual condition for a monitoring object
See 4.12 Status-Change Condition Settings window in the manual JP1/Integrated Management 2 - Manager GUI Reference.
- Note
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When you select Match, JP1/IM - Manager (Central Scope) determines that the individual condition is satisfied only when there is a complete match between the attribute value (string) of a received JP1 event and the string specified as the individual condition.
In contrast, when you select Host name comparison, JP1/IM - Manager (Central Scope) compares the event attribute value with the host information in the database.
For example, suppose that the following is defined in the host information database of JP1/IM - Manager (Central Scope) or in the DNS or hosts file of the host on which JP1/IM - Manager (Central Scope) runs:
111.111.111.111 server1 webserver
The differences between specifying Match and specifying Host name comparison in this environment are as follows:
- Specified individual condition: E.OBJECT_ID : server1 : Match
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If E.OBJECT_ID of a JP1 event is server1: Condition is satisfied.
If E.OBJECT_ID of a JP1 event is webserver: Condition is not satisfied.
If E.OBJECT_ID of a JP1 event is 111.111.111.111: Condition is not satisfied.
- Specified individual condition: E.OBJECT_ID : server1 : Host name comparison
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If E.OBJECT_ID of a JP1 event is server1: Condition is satisfied.
If E.OBJECT_ID of a JP1 event is webserver: Condition is satisfied.
If E.OBJECT_ID of a JP1 event is 111.111.111.111: Condition is satisfied.
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