topic Re: Kernel Parameter Change in Operating System - HP-UX

Kernel Parameter Change

Ron Brown_2 — Wed, 20 Aug 2003 17:43:09 GMT

I need to change dbc_max_pct on an L1000 running HP-UX 11.00. I have found the appropriate place in SAM, but I would like to know the procedure to make the change effective before performing the operation. Any information is appreciated.

Re: Kernel Parameter Change

Brian Bergstrand — Wed, 20 Aug 2003 18:02:11 GMT

Just make the change in SAM and then let SAM rebuild the kernel and reboot the system. That's it (assuming you have already backed up your old kernel/config).

If you are asking what the value should be, the recommondation for dbc_max_pct is no more than 25%.

HTH.

Re: Kernel Parameter Change

Hai Nguyen_1 — Wed, 20 Aug 2003 18:03:41 GMT

You can use SAM to perform this task safely.

sam > Kernel Configuration > Configurables Parameters > highlight dbc_max_pct > Actions > Modify Configurable Parameter > enter new value > Actions > Process New Kernel.

Hai

Re: Kernel Parameter Change

Ron Brown_2 — Wed, 20 Aug 2003 18:14:07 GMT

I assume, then, that SAM will automatically reboot the system. Looks like I'll have to perform that after hours. Thanks!

Re: Kernel Parameter Change

Brian Bergstrand — Wed, 20 Aug 2003 18:18:19 GMT

Yes, SAM will detect a change in the kernel values when you exit the kernel config screen and ask if you would like to rebuild the kernel. This comes with a warning that the system will be automatically rebooted.

HTH.