12.5.1 Managing the system hierarchy
Consider how to manage the system hierarchy (IM configuration) to manage the system configuration of physical hosts. You can use either of the following methods to manage the system hierarchy:
- Using IM Configuration Management
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By using IM Configuration Management, you can centrally manage the system hierarchy from IM Configuration Management - View.
To use IM Configuration Management, you must activate the IM Configuration Management database. Make sure that you take into account the IM database space requirements during the system design stage.
When using IM Configuration Management to manage the system hierarchy, consider the operation in which the configuration management function provided by JP1/Base is not used together with IM Configuration Management. If you have edited configuration definition files that are used by the configuration management function provided by JP1/Base or executed commands associated with the configuration management function, make sure that you re-acquire the IM configuration by IM Configuration Management.
- Without using IM Configuration Management
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If you do not intend to centrally manage the system hierarchy from a manager, you can use the configuration management function provided by JP1/Base.
With this function, you define the host relationships in the configuration definition file (jbs_route.conf) on the manager, and use the associated commands (jbsrt_distrib, jbsrt_sync, jbsrt_del, and jbsrt_get) to apply and check the settings.
There is no need to activate the IM Configuration Management database if you do not intend to use IM Configuration Management. Therefore, you do not need to estimate the IM database space requirements during the system design stage.
For details about these functions, see the following references:
- Using IM Configuration Management
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Managing the system hierarchy using IM Configuration Management
See Chapter 7. System Hierarchy Management Using IM Configuration Management.
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- Without using IM Configuration Management
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Managing the system hierarchy using the configuration definition function provided by JP1/Base
See 8.4.3 Managing the system hierarchy and 8.4.5 Collecting and distributing definition information.
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When you change the management mode after beginning management of the system hierarchy, if you use IM Configuration Management and the jbsrt_distrib command provided by JP1/Base at the same time, the following information might become inconsistent. This might disorder the system operation.
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Information displayed in the IM configuration management viewer
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Information actually applied to the system
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Configuration definition information retained by hosts
Therefore, we do not recommend you to change the management mode after beginning managing the system hierarchy. Carefully consider which mode of hierarchy management you want to employ before you start using the system.