HP-UX 11.11: How to disable a CPU without shutdown ?

[maurige]

I would like to disable a CPU on a rp5430 running HP-UX 11.11 without shuting down the system.
I look for a command similar to psradm on Tru64 with allows to dynamically activate or not a processor (it is a software control)
Thanks for your help.

[Robert-Jan Goossens_1 · Accepted solution]

Hi Maurige,

Sorry this is not possible, you will need to reboot.

K,D, and R class processor deconfiguration procedure:
-----------------------------------------------------
Boot or reboot the server(ctrl b then "rs") and interrupt the boot process when
prompted to hit any key within 10 seconds to interrupt the boot. Answer "no"
when prompted to boot from primary and alternate boot paths, bringing up the
boot admin menu. Enter "SER" to bring up the service menu. The service menu
command to configure/deconfigure a processor is CPUconfig:

CPU ON|OFF

The server will need to be restarted with the "RESET" command for changes to
take affect.

http://forums1.itrc.hp.com/service/forums/questionanswer.do?admit=716493758+1100623857190+28353475&threadId=133209

Regards,
Robert-Jan

[Sanjay_6]

Hi,

you need to reboot the server and disable it from the GSP / BCH. you cannot do it online. A reset is required after a processor disable, which is equivalent to a system reboot.

Hope this helps.

Regds

[maurige]

Thanks for your help