Kernel parameter change , if reboot required?

[rveri]

Hi All,

Does increasing this parameters required a reboot:

maxssiz
maxssiz_64bit


Hp-ux version : 11.11

Thanks,

[Warren_9 · Accepted solution]

Hi,

both the maxssiz and maxssiz_64 are static... therefore reboot is require to apply the changes.

GOOD LUCK!!

[Arunvijai_4]

Hi,

Yes, you need to reboot the server. Refer,

http://docs.hp.com/en/TKP-90202/re37.html

Restrictions on Changing

Changes to this tunable take effect at the next reboot.

-Arun

[Warren_9]

for details, pls reference to the following

http://docs.hp.com/en/TKP-90202/index.html?jumpid=reg_R1002_USEN

[Raj D.]

veri,

Yes , Static parameter. Reboot required.

kmtune -s maxssiz=newvalue
kmtune -s maxssiz_64bit=newvalue

./mk_kernel
kmupdate
shutdown -r -y 0

After reboot check with # kmtune -q maxssiz

Cheers,
Raj.

[Indira Aramandla]

Hi rveri,

Kernel parameters if they are not dynamic, they require reboot.

You can find out if the parameter is Static or Dynamic by using jmtune -q option, to query the value of the specified system parameter.

For eg:-


kmtune -q maxssiz

Parameter Current Dyn Planned Module Version
==============================================================
maxssiz 0x6000000 - 0X6000000


Here you can see the - under Dyn, meaning the parameter is static and not dynamic. If the parameter is dynamic then you will see "Y" under Dyn


Indira A

[rveri]

Thanks everyone.