kernel parameters for installing Oracle.

[Prasanna Rajagopal]

When I try and install Oracle 10g on HP-UX it tells me that the following kernel parameters are not found:
Checking for maxswapchunks=16384; found no entry.
Checking for semmap=4098; found no entry.
Also, during patch check it tells the following:

Checking for PHSS_31854; found Not found. Failed

Checking for PHSS_33275; found Not found. Failed <<<<
Checking for PHSS_33276; found Not found. Failed <<<<
Checking for PHSS_33278; found Not found. Failed <<<<
Checking for PHSS_33279; found Not found. Failed <<<<
Checking for PHSS_33277; found Not found. Failed <<<<
Checking for PHSS_33279; found Not found. Failed

How do I set the kernel parameters and also how would I update all the patches?
I would greatly appreciate all the help I can get on these issues.

[freddy_21]

for kerner parameter you can change using sam
kernel configuration
configurable parameter


for patches you must download first from ITRC. some time your system have a latest patch bundle.

ex: your patches PHSS_31854 have a newest PHSS_34445.


so please check at itrc to know a new patches.

thanks
freddy

[Adisuria Wangsadinata_1]

Hi Prasanna,

You can check with your sysadmin for this issues.

First, do it one by one (starting with set the kernel parameters and update the patches). And do not forget to backup your system first before you applying the tasks above.

Set the kernel parameters can be done with SAM :

SAM > Kernel Configuration > Configurable Parameters

For patches, you can get it the patches for HP ITRC website :

maintenance and support for hp products >
find individual patches

Please alocate the downtime for your systems for both tasks.

Hope this information can help you.

Cheers,
AW

[Alexander M. Ermes]

Hi there.
Did you check the Install and Upgrade guide from Oracle ? Usually you will find the necessary details for install of patches and changes fo kernel parameters.
If you want to list your patches from the kernel, try this :

swlist -l product | grep PH

Rgds
Alexander M. Ermes

[Rajesh SB]

Hi,

I am sharing Kernel Paramter tuning commandline method.

I believe you don't have System Admin background. Better use SAM utility option for Kernel Parameter to avoid any kind of manual error.

For installing Oracle, very essential pre-requisites are 1. Recommended Latest Patch Bundle and OS Patches are

Libc cumulative header file patch
libc cumulative patch
libc cumulative header patch
Ld(1) and linker tools cumulative patch

Good luck.

Regards,
Rajesh

[Prasanna Rajagopal]

Thank you for all the replies. Please pardon my ignorance. I started SAM and went into kernel configuration and inside that I started Kernel configuration (character mode). I see Tunables, Modules, Log Viewer, Usage/Alarms. I went into tunables, but I do not see an option to add new kernel parameters. I do not see the following parameters and wish to add them for Oracle Installation to proceed:
maxswapchunks=16384
semmap=4098
Please help.
Thank you

[inventsekar_1]

Hi,
sam-->Kernel configuration-->configurable parameters-->and scroll down to "maxswapchunks".
use the down arrow key to go down. when u reach maxswapchunks click "space" button to select that.
and go to actions and u can change its value.
read help at any time by,
Press CTRL-K for keyboard help.

and assign the points to those who spend their time to u.

[inventsekar_1]

"I see Tunables, Modules, Log Viewer, Usage/Alarms. I went into tunables, but I do not see an option to add new kernel parameters."

is it 11iv2?
reply the "uname -a" commands result.

[Prasanna Rajagopal]

Hi
Thank you for your reply. This is the result for uname -a:
HP-UX FDHPWEB B.11.23 U ia64 1013254337 unlimited-user license

I am unable to find those two parameters Kernel Configuration -> Tunables. I searched for it but the result turned up nothing.
Thanks

[inventsekar_1 · Accepted solution]

http://docs.hp.com/en/B2355-90781docs/B2355-90781docs.pdf
in this man page guide,
refer the page number 353 and u should use the command "kctune" with enough paramaters for your job.

Better strickly follow the oracle 10g for HPUX installation guide.

oracle installation is a tough job.

update that whether u r able to use "kctune" or not?

[Prasanna Rajagopal]

Thanks, kctune worked very well. This is what I used kctune -u maxswapchunks=16384 and kctune -u semmap=4098. I am now trying to install the pacthes and I am now facing the following problem:
I just ran create_depot_hp-ux_11

ERROR: swverify of depot failed.
ERROR: Errors were found while building depot.


I think the readme file that comes with the patch is addressed towards sysadmins.
Thanks

[inventsekar_1]

Hi Prasanna Rajagopal,

give the command "kctune | more" and verify that parameters.

and one more thing, give me the link for the installation guide u r following(r u going to install OVOU sometools like that after installing the oracle?)

and download the patches from ITRC page(u should do this: search for each patch and add to cart, at the end download it as a tar depot file), then in the hpux box, u can use sam or swinstall to install it.

[Prasanna Rajagopal]

Thank you for your reply. I used kctune | more and verified the parameters. Regarding installation of the patches, the option that I see on the ITRC download page for pacthes is
"Select the desired format "
under this I see :

zip package
gzip package
tar package
download a script that will ftp the patches

I do not see download as "tar depot file"...

Please help...thank you

[inventsekar_1]

sorry. select "tar package" and download.

after downloading it u can use sam to install it or "swinstall -s path" ..here path is actual path, ie, starting from "/"
like, /tmp/patch/original_patch_tar_file

[Prasanna Rajagopal]

Thanks, I used the following command...
swinstall -s path /tmp/patches/hpux__11.23_07191147.tar

I get the following error message:
======= 07/19/06 11:35:21 PDT BEGIN swinstall SESSION
(non-interactive) (jobid=FDHPWEB-0036)

* Session started for user "root@FDHPWEB".

* Beginning Selection
* Target connection succeeded for "FDHPWEB:/".
ERROR: Could not contact host "path". Make sure the hostname is
correct and an absolute pathname is specified (beginning with
"/").
* Source connection failed for "path:/var/spool/sw".
WARNING: More information may be found in the daemon logfile on this
target (default location is path:/var/adm/sw/swagentd.log).
* Selection had errors.



======= 07/19/06 11:35:21 PDT END swinstall SESSION (non-interactive)
(jobid=FDHPWEB-0036)
Please help...thank you.

[JASH_2]

Prasanna,

You need to untar the file first:-

#tar -cvf

This will extract a couple of files, there will be either a .depot file, or a make_depot_file. If a make.... then run that. If a depot file the use that in swinstall.

Regards,

JASH

[JASH_2]

Prasanna,

That should be :-

#tar -xvf

Sorry!

Jash

[Arunkumar Mani]

Prasanna,

I dont know whether your problem is solved, but your kernel will works with the updated parameters only after the reboot!!!

There are a couple of steps you need to do for building a new kernel before a reboot...

Arun

[Bill Hassell]

maxswapchunks and semmap were removed from the kernel at 11.23 so the Oracle installer has a couple of defects. The kctune -u option is just creating a phony parameter (it does nothing but return a value in kctune -- no effect on the kernel at all).

[Sp4admin]

Hi,

Both maxswapchunk and semmap are nolonger in version 11.23. they have been removed. as Bill has stated above.

sp,