topic Re: Tunning maxdsiz_64bit in Operating System - HP-UX

Tunning maxdsiz_64bit

catastro — Wed, 09 May 2007 05:37:11 GMT

Hi, I have to change some kernel parameters on some systems and in one of them, in the maxdsiz_64bit when I try to use the kmtune -s maxdsiz_64bit=new_value it tells me that value does not exists, and executing the command kmtune it does not appear, and in others it does. Is this because it is not being used or something like this?
In the systems that this parameter appears, the command to execute is the same as I wrote before, I ghuess.
And one last thing, I guess after this I have to do:

# mk_kernel -s system
# mv /stand/system /stand/system.prev
# /usr/sbin/kmupdate
# shutdown -r -y 0

Or should I move the old one before, then make the kernel, update it and then reboot?
Thanks in advance

Re: Tunning maxdsiz_64bit

Steven E. Protter — Wed, 09 May 2007 06:12:56 GMT

Shalom

Your procedures as posted are incomplete.

See this thread:

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=105739

SEP

Re: Tunning maxdsiz_64bit

catastro — Wed, 09 May 2007 06:42:44 GMT

Thanks Steven, I took a look at the post in the form you sent me, and I reviewd the steps, and these are the ones I belive should be now, aren't they?

#cd /stand
#cp vmunix vmunix.old
#cp system system.old
#cd build
#mv /stand/system /stand/system.prev
#/usr/lbin/sysadm/system_prep -s system

Edit system file and make changes.

# mk_kernel -s system

The new kernel will be created in /stand/build. Copy this to the original location.

#cd /stand/build
#cp vmunix_test /stand/vmunix
#cd /stand
#cp system /stand
#/usr/sbin/kmupdate
#shutdown -r -y 0

Re: Tunning maxdsiz_64bit

Jaime Bolanos Rojas. — Wed, 09 May 2007 07:50:50 GMT

Catastro,

You are just about right, this are the steps that I have:

1- cd /stand/build

2- /usr/lbin/sysadm/system_prep -s system

3- use kmtune do the changes or kmsystem or kdadmin

4- while in /stand/build
/usr/sbin/mk_kernel -s ./system

5- cp /stand/system /stand/system.old
cp /stand/vmunix /stand/vmunix.old
cp -R dlkm dlkm.vmunix.old

6- schedule installation with kmupdate
copy /stand/build/system to /stand/system

7- shutdown -r 0

8- check that the changes took effect.

Regards,

Jaime.

Re: Tunning maxdsiz_64bit

catastro — Wed, 09 May 2007 08:10:21 GMT

Thanks to the two of you for your advices. I just made my steps now clear and update the kernel. Again, thanks.