topic Re: How to change the kernel parameter in Operating System - HP-UX

How to change the kernel parameter

praveen.. — Wed, 30 Aug 2006 06:58:59 GMT

Hi,
I need to install the oracle 10g in hp-ux b.11.11

when i am trying to install oracle 10g, i got this error:

=======================================================================

Checking recommended operating system patches

Checking for PHNE_31097; found PHNE_31097. Passed

Checking for PHSS_31221; found PHSS_31221. Passed

Checking for PHSS_32508; found Not found. Failed <<<<

Checking for PHSS_32509; found Not found. Failed <<<<

Checking for PHSS_32510; found Not found. Failed <<<<

Checking for PHSS_30970; found PHSS_30970. Passed

Checking for PHSS_32731; found PHSS_32731. Passed

Checking for PHCO_31312; found PHCO_31312. Passed

Checking for PHCO_30275; found PHCO_30275. Passed

Checking for PHNE_28923; found PHNE_28923. Passed

Check complete. The overall result of this check is: Failed <<<<

Problem: Some recommended patches are missing (see above).

Recommendation: You may actually have installed patches which have obsoleted these, in which case you can successfully continue with the install. If you have not, it is recommended that you do not continue. Refer to the readme to find out how to get the missing patches.

=======================================================================

Checking kernel parameters

Checking for ksi_alloc_max=32768; found ksi_alloc_max=25760. Failed <<<<

Checking for max_thread_proc=256; found max_thread_proc=64. Failed <<<<

Checking for maxdsiz=1073741824; found maxdsiz=268435456. Failed <<<<

Checking for maxdsiz_64bit=2147483648; found maxdsiz_64bit=1073741824. Failed <<<<

Checking for maxssiz=134217728; found maxssiz=134217728. Passed

Checking for maxssiz_64bit=1073741824; found maxssiz_64bit=134217728. Failed <<<<

Checking for maxswapchunks=16384; found maxswapchunks=16384. Passed

Checking for maxuprc=3687; found maxuprc=512. Failed <<<<

Checking for msgmap=4098; found msgmap=32202. Passed

Checking for msgmni=4096; found msgmni=3220. Failed <<<<

Checking for msgseg=32767; found msgseg=32767. Passed

Checking for msgtql=4096; found msgtql=32200. Passed

Checking for ncsize=34816; found ncsize=32928. Failed <<<<

Checking for nfile=63488; found nfile=50348. Failed <<<<

Checking for nflocks=4096; found nflocks=3220. Failed <<<<

Checking for ninode=34816; found ninode=27808. Failed <<<<

Checking for nkthread=7184; found nkthread=5651. Failed <<<<

Checking for nproc=4096; found nproc=3220. Failed <<<<

Checking for semmap=4098; found semmap=16102. Passed

Checking for semmni=4096; found semmni=16100. Passed

Checking for semmns=8192; found semmns=32200. Passed

Checking for semmnu=4092; found semmnu=64. Failed <<<<

Checking for semvmx=32767; found semvmx=32767. Passed

Checking for shmmax=1073741824; found shmmax=4294967296. Passed

Checking for shmmni=512; found shmmni=1024. Passed

Checking for shmseg=120; found shmseg=120. Passed

Checking for vps_ceiling=64; found vps_ceiling=16. Failed <<<<

Check complete. The overall result of this check is: Failed <<<<

Problem: The kernel parameters do not meet the minimum requirements (see above).

Recommendation: Perform operating system specific instructions to update the kernel parameters.

=======================================================================

Please let me know how can i change the kernel parameters:

I am doing:
sam> kernal configuration> configurable parameters >
then i used "space" to select any parameter and the "action" , then "modify configurable parameter"

then it shows me the " formula value" & "current value".

I am also facing some problem with the installation of these patches, I had already opened a new thread for it.

Please suggest how can change these kernel parameters value.

Thanks

Re: How to change the kernel parameter

Jaime Bolanos Rojas. — Wed, 30 Aug 2006 07:09:40 GMT

Praven, if you are running 11.11 then you should go to Sam, Kernel configuration, then Kcweb (kernel configuration ) character mode, then tunables, then select the tunable and you will have some option at the bottom to modify the values, usually m to modify the value...

Regards,

Jaime.

Re: How to change the kernel parameter

Jaime Bolanos Rojas. — Wed, 30 Aug 2006 07:13:18 GMT

Praven,

My apologies, that was my 11.23, you need an 11.11.

I will give it to you in just one second, sorry!

Jaime.

Re: How to change the kernel parameter

Karsten Löperick — Wed, 30 Aug 2006 07:20:30 GMT

Hello praveen,

changing Kernelparams are not too difficult.
I general you only have to type in the new value in decimal ( e.g. 100000 ) or hexadecimal ( 0x186a0 ) or a new formula ( e.g ( "(nkthread + 90212)" ). It is also possible to overwrite formulas with decimal or hexadecimal values. If the "value" a formula then you will see the calculated calue otherwise the formula/value are the same as the current value.
But be careful with the dependencies to other kernel params.

So I hope that helps a bit.

Karsten

Re: How to change the kernel parameter

Jaime Bolanos Rojas. — Wed, 30 Aug 2006 07:22:46 GMT

Praven,

From the command line, I did not like the options in SAM,

- go to /stand/build

- run: system_prep -s system

- make changes to kernel with kmsystem and kmtune ( take a look at man pages if necessary )

- mk_kernel -s ./system

- backup old kernel

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

- kmupdate ( this will schedule the installation of new kernel )

- Reboot

- check to see that paremeters were changed.

Regards,

Jaime.

Re: How to change the kernel parameter

praveen.. — Wed, 30 Aug 2006 07:27:23 GMT

Hi,
i am afraid to change the kernal parameters using command, please suggest me using SAM

Thanks

Re: How to change the kernel parameter

Karsten Löperick — Wed, 30 Aug 2006 07:30:45 GMT

Hello again,

I forgot to tell you that you can use SAM . Thats the way how I am doing kernel changings. So donÂ´t be afraid - it is easy specially with SAM.

Greetings

Karsten

Re: How to change the kernel parameter

praveen.. — Wed, 30 Aug 2006 07:34:17 GMT

every parameter is in formula value,
i dont want to use the formula, i want to change the values in decimal.

please suggest

Re: How to change the kernel parameter

Pete Randall — Wed, 30 Aug 2006 07:36:30 GMT

SAM > Kernel Configuration > Configurable Paramaters > then select the parameter you wish to change, click on Actions > Modify Configurable Parameter and plug in the required value in the Formula/Value window. This window can contain either an absolute value or a formula. If it contains a formula (like maxusers X something plus something else), you can just plug in an absolute value instead. In fact it is commonly suggested to use ablolute values rather than formulas (formulae?). When you have changed all the required parameters, the click on Actions > Process New Kernel. SAM will build your new kernel and then ask you to click OK to move the kernel into place and reboot.

Pete

Re: How to change the kernel parameter

Pete Randall — Wed, 30 Aug 2006 07:55:37 GMT

I should also add that there is a button under Actions called "Show Values in Hex/Decimal". You can use this to switch back and for from hex to decimal.

Pete

Re: How to change the kernel parameter

Sp4admin — Wed, 30 Aug 2006 08:16:51 GMT

Hi Praveen,

I think its better to change the kernel using SAM. run SAM > Kernel configuration > configurable Paramaters. Select the which ones you woukd like to change. You can use the absolute values. Just remmber a kernel change my need to reboot the server. Plus it looks like the are some Patches you need to install, be sure that they are not super seeded.

Good luck,
sp,

Re: How to change the kernel parameter

Patrick Wallek — Wed, 30 Aug 2006 08:24:16 GMT

You don't HAVE to use the formulas that are listed.

Just tab into the value field, remove the formula that is there and put the value you want in its place.

Re: How to change the kernel parameter

inventsekar_1 — Wed, 30 Aug 2006 09:41:18 GMT

Hi praveen,

tell us if u stuck somewhere.
and are u in hp bangalore?

in sam kernel configuration,
"CNTL k" will give u the help.
read it once.

Re: How to change the kernel parameter

praveen.. — Thu, 31 Aug 2006 00:47:38 GMT

I am doing:
sam> kernal configuration> configurable parameters >
then i used "space" to select any parameter and the "action" , then "modify configurable parameter"

then it shows me the " formula value" & "calulated value".

so i am deleting the formula value and giving the new decimal value.

now the status is: ( I want to make it 256)
suppose:

Name Current Value Pending value
max_thread_proc 64 256

now when i exit from kernal configuration, it asks for:

<> create a new kernel now
<> Defer kernel creation until later
<> cancel all kernel modifications

please suggest which options should i choose and what be new options after this and what to select.

Thanks

Re: How to change the kernel parameter

Henk Geurts — Thu, 31 Aug 2006 01:31:03 GMT

hi
after changing all parameters choose
create new kernel now
it will ask something like:
move kernel into place now
select yes.

then system will reboot...