Kernel Parameter Change

[Ron Brown_2]

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.

[Brian Bergstrand · Accepted solution]

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.

[Hai Nguyen_1]

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

[Ron Brown_2]

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

[Brian Bergstrand]

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.