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Dynamic Kernel Parameters

 
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Paddy O'Connell
Frequent Advisor

Dynamic Kernel Parameters

Hi,

Can someone please confirm for me that if i change a dynamic kernel parameter, the change is actually keep after a system reboot?

In case you need the info the kernel parameter i'm changing is maxfiles_lim.

Thanks
Paddy
6 REPLIES 6
Mark Nieuwboer
Esteemed Contributor
Solution

Re: Dynamic Kernel Parameters

Paddy,

The new kernel parameter is kept after a reboot.

grtz. Mark
Joseph Loo
Honored Contributor

Re: Dynamic Kernel Parameters

hi,

for dynamic kernel para., its value can be changed without a reboot unlike static para., whose value cannot be changed witout rebooting the system as a kernel rebuild is required.

regards.
what you do not see does not mean you should not believe
Devender Khatana
Honored Contributor

Re: Dynamic Kernel Parameters

Hi,

All parameter changes are stored in files which lies in /stand directory and are scanned during bootup. The difference in static & dynamic is that dynamic do not require reboot whereas static requires a kernel rebuilt and hence reboot.

HTH,
Devnder
Impossible itself mentions "I m possible"
Muthukumar_5
Honored Contributor

Re: Dynamic Kernel Parameters

Yes. It will be getting effect after reboot.

If you want to know the value of parameter then,

use kctune ( 11.23 > on wards)
kmtune -q (11.23 <)

use same for getting kernel parameters.

hth.
Easy to suggest when don't know about the problem!
Paddy O'Connell
Frequent Advisor

Re: Dynamic Kernel Parameters

Thanks Everyone.

I though as much but needed to confirm it.

Regards
Paddy
Paddy O'Connell
Frequent Advisor

Re: Dynamic Kernel Parameters

Question answered