Kernel Parameter changes

[Anand Sreenivasan]

All,
I am going to do some change in Kernel parameters changes.My question is How can I do all the changs and then do a single reboot instead of rebuilding kernel everytime I change a paramater which requires a reboot. Thanks for assistance.

[Jeroen Peereboom]

??? Use SAM ???

What kind of parameters?

JP

[Anand Sreenivasan]

Parameters like MAXSSIZ_64bit needs a rebuild of kernel and will reboot when ever I change it . But , If I want to cange one more parameter which also requires a reboot how do I avoid it ?. I want to change all parameters and then perform a reboot once ?.

[Todd McDaniel_1]

with SAM you can modify as many kernel parms as you dare.

just modify each one and then select a new one and modify it as well...

When you are done, compile it. That's all.

[Franky_1 · Accepted solution]

Hi Anand,

you can change multiple Kernel Parameters using kmtune (assuming 11.x)

kmtune -s

[Rajesh D L]

Hi,

You can change all the required parameters and then reboot the server. Dont reboot, unless and until you are done with the modifications.

regards,
RDL.

[Geoff Wild]

In SAM, you can make multiple kernel changes, then re-compile the kernel just once and reboot just once....

Rgds...Geoff

[Hemanth Gurunath Basrur]

Hello Anand,

As all of them have pointed out, you can use SAM. From HP-UX 11.22 release, there is also a new Web-based HP-UX Kernel Configuration tool (kcweb), which is launchable from SAM.

For more information, refer to:

http://www.software.hp.com/portal/swdepot/displayProductInfo.do?productNumber=Casey

HTH.

Regards,
Hemanth

PS: Until 11.11 release, you can use commands like kmtune etc. From 11.22 release, you may have to use commands like kctune, kcusage, kcmodule etc.

[Don Morris_1]

Of course, with 11.22 and later he wouldn't have to reboot to change maxssiz_64bit in the first place. :)

[Anand Sreenivasan]

Thanks all for the quick response. I will do it and see how it goes. Thanks also for the information about hp 11.22 and above. Appreciate all the help.