4.3.8 Changing the physical host name after operation has started
This subsection describes the procedures to be performed on the Performance Management system that are necessary to change the physical host name of the server on which PFM - Manager, PFM - Agent, or PFM - RM is installed after the Performance Management system has been configured.
The Performance Management system uses service IDs to run the system. For the service IDs, the Performance Management system uses the host names (real host names) obtained from the OS by the hostname command. Therefore, to change the physical host name on a server that has PFM - Manager, PFM - Agent, or PFM - RM installed, you need to check the settings of the monitoring host name.
To obtain the monitoring host name used currently by the PFM - Manager, PFM - Agent, or PFM - RM host, as well as the method used obtain the monitoring host name, execute the command shown below on the corresponding host. In this command, hostmode represents the method used to obtain the monitoring host name, and hostname represents the monitoring host name.
jpcconf host hostmode -display
- Example
-
• When the function for setting monitoring host names is not used
hostmode : hostname
hostname : hostA
• When the function for setting monitoring host names is used
hostmode : alias
hostname : aliasA
|
Method for acquiring a monitoring host name |
Monitoring host name |
|---|---|
|
Hostname |
Real host name (value obtained by the hostname command) |
|
Alias |
Alias name |
If the method used to obtain the monitoring host name is set to alias and the server's physical host name is changed, there is no need to change the physical host name of the PFM - Manager, PFM - Agent, or PFM - RM server because the monitoring host name is an alias in the Performance Management system.
If the method used to obtain the monitoring host name is set to hostname, you must change the physical host name of the PFM - Manager, PFM - Agent, or PFM - RM server. For details, see 4.3.9 Changing the physical host name of PFM - Manager or 4.3.10 Changing the physical host name of PFM - Agent or PFM - RM.
For details about the jpcconf host hostmode command, see the chapters that describe commands in the manual JP1/Performance Management Reference.
- Important
-
-
Do not execute any other commands while executing the jpcconf host command. If you execute another command, both the jpcconf host command and the executed command might fail.
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Before you change the physical host name of the PFM - Manager, PFM - Agent, or PFM - RM server, you must perform the procedure described in 4.3.9 Changing the physical host name of PFM - Manager or 4.3.10 Changing the physical host name of PFM - Agent or PFM - RM.
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You need to execute the jpcconf host hostmode command to change the method of obtaining monitoring host names in the Performance Management system from alias (aliases) to hostname (real host names). For details about the jpcconf host hostmode command, see the chapter that describes commands in the manual JP1/Performance Management Reference.
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