Re: adding cpus without logoff

[Grzegorz Powiedziuk]

On Mon, Sep 7, 2020 at 3:48 AM Herald ten Dam 
wrote:

>
> you can dynamically add cpus. You changed only the definition. Have a look
> at this note form IBM:
>
> https://www.ibm.com/support/pages/dynamically-adding-or-removing-cpus-linux-zvm-guest
>
> thank you. This is actually what I was trying to do. I've updated the
definition and then from the guest VM (via vmcp, from linux) I run the
define CPU 08 command which gave me an error about reaching the max number
of cpus defined in the directory.  Even though the number right now is "12"
it doesn't let me go with it. I am 100% sure that logoff/logon will fix
that but I can't shutdown that vm at the moment
 Thanks
Gregory

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Re: adding cpus without logoff

[Herald ten Dam]

Hi,

you can dynamically add cpus. You changed only the definition. Have a look at 
this note form IBM:
https://www.ibm.com/support/pages/dynamically-adding-or-removing-cpus-linux-zvm-guest

Met vriendelijke groet,
Herald ten Dam
Database Specialist Oracle, Medior z/VM

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Van: Linux on 390 Port  namens Grzegorz Powiedziuk 

Verzonden: maandag 7 september 2020 02:17
Aan: LINUX-390@VM.MARIST.EDU 
Onderwerp: adding cpus without logoff

Hello, I am almost sure I've done this before but now my memory is failing
me
The virtual machine had a  "MACHINE ESA 8" and a list CPU 00...07
We changed it to MACHINE ESA 10 and added 2 more cpus to the list

Unfortunately I can't simply re-logon the VM. I was sure that after
updating the userdirectory it will allow me to define cpu from the linux
guest but it doesn't

I am getting HCPCPU1458E, attempt was made to define more CPUs than it is
allowed in directory

Any way to workaround this? My first thought was running set machine esa 10
but the command doesn't take the mcpu number like the directory statement
...
thank you
Gregory

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