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  • 1.  while doing LPM, can we add more CPUs

    Posted Fri March 22, 2024 03:04 PM

    Hello experts, 

    I am doing LPM first time. The current system/frame maxed out on CPU resoruces, so I want to LPM the live partition without downtime , but want to add more Virtual Processors and processing units , Is that possible ? or do I have to shutdown the Lpar . I tried dynamically to add at least 1 VP and 0.5 processing units ( frame had 1 Unit available ) but those are grayed out , unless I shut the Lpar ?

    Please advise.

    Thanks

    Nags



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    Nag N
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  • 2.  RE: while doing LPM, can we add more CPUs

    IBM Champion
    Posted Mon March 25, 2024 04:46 AM

    Hi Nag,

    it depends on your LPAR configuration and the managed system where the LPAR is currently running.

    If you don't have enough resources on your current managed system, you must first migrate and then add resources.

    If you have enough resources, but still can't add resources to your LPAR, check the LPAR configuration. You can't excess your maximum LPAR configuration. If you configured your LPAR e.g. with maximum 8 vCPUs, you can't add 9 vCPUs into it. You must stop the LPAR, reconfigure it and start it from the new profile.



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    Andrey Klyachkin

    https://www.power-devops.com
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    Original Message


  • 3.  RE: while doing LPM, can we add more CPUs

    Posted Mon March 25, 2024 04:58 AM

    Hi,

    If you are not able to do Live LPM, I think you are missing the RMC on your LPAR, depending of you OS you should install or restart the RMC daemon.



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    Thierry Huché
    Power Systems Brand Technical Specialist
    IBM France
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    Original Message


  • 4.  RE: while doing LPM, can we add more CPUs

    IBM Champion
    Posted Thu March 28, 2024 02:24 PM

    Similar answer to others.
    If you cannot DLPAR resources in right where it sits , the first thing to check is your RMC connection.
    When DLPARing , you should be able to adjust resources of CPU / MEM between the MIN and MAX settings on the profile.



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    Alan Fulton
    Follow me on Twitter - @The_Iron_Monger
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    Original Message