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Initial response to the idea creator:
The HMC already provides support for getting information about CPC capacity and notifications about CPC capacity changes at its Web Services API.
Reference: HMC WS-API book 2.17, SC27-2646-00 https://www.ibm.com/docs/ko/module_1721331501652/pdf/SC27-2646-00.pdf
Here is the CoD related information for the WS-API:
1. Software model of a CPC. The CPC object provides multiple software-model related properties, including information about temporary capacity. These properties support property change notifications. For details, see WS-API book, Chapter 11. Core IBM Z resources -> CPC object -> Data model -> software-model-* properties.
2. Capacity Record objects. These objects represent temporary upgrades that can be applied to a CPC. They have properties for the activation time, the delta capacity, and others. For details, see WS-API book, Chapter 11. Core IBM Z resources -> Capacity Records. The Capacity Record objects do not support the usual property change notifications, but they support specific capacity record change notifications. For details, see WS-API book, Chapter 4. Asynchronous notifications -> Java Message Service (JMS) basics -> Notification message formats -> Capacity record change notification.
The client can develop a program that interfaces with the HMC WS-API to better automate that. I think the client first needs to evaluate whether the above satisfies their needs.
There is a client library in Python for the HMC WS-API for Python that supports getting the CPC object and subscribing for property change notifications of the CPC object. It does not yet support capacity change record objects, though. Documentation for the client library is at https://python-zhmcclient.readthedocs.io/
This seems to be more of a Hardware Management Console topic. Can this idea be moved to that product?