Setting Kernel Parameters for Solaris 10 before installing Oracle 10G

I am trying to install oracle 10g in a solaris 10 environment and the instructions for setting the values for the kernel parameters in the system file are confusing me. In the installation guide it says:

On Solaris 10, verify that the kernel parameters shown in the following table are set to
values greater than or equal to the recommended value shown. The table also contains
the resource controls that replace the /etc/system file for a specific kernel
parameter.

Note: In Solaris 10, you are not required to make changes to the
/etc/system file to implement the System V TPC. Solaris 10 uses
the resource control facility for its implementation.

Table:

Parameter Replaced by Resource Control Recommended Value
noexec_user_stack NA 1
semsys:seminfo_semmni project.max-sem-ids 100
semsys:seminfo_semmsl process.max-sem-nsems 256
shmsys:shminfo_shmmax project.max-shm-memory 4294967295
shmsys:shminfo_shmmni project.max-shm-ids 100

It also says the following:

On Solaris 10, use the following procedure to view the current value specified for
resource controls, and to change them if necessary:

1. To view the current values of the resource control, enter the following commands:
# id -p // to verify the project id
uid=0(root) gid=0(root) projid=1 (user.root)
# prctl -n project.max-shm-memory -i project user.root
# prctl -n project.max-sem-ids -i project user.root

2. If you must change any of the current values, then:

a. To modify the value of max-shm-memory to 6 GB:
# prctl -n project.max-shm-memory -v 6gb -r -i project user.root

b. To modify the value of max-sem-ids to 256:
# prctl -n project.max-sem-ids -v 256 -r -i project user.root

------------------------------------------------------------------------------- ------------------

Someone on another forum said check the following:

5. Check kernel parameters
set shmsys:shminfo_shmmax=4294967295
set shmsys:shminfo_shmmin=1
set shmsys:shminfo_shmmni=100
set shmsys:shminfo_shmseg=10
set semsys:seminfo_semmns=2000
set semsys:seminfo_semmsl=1000
set semsys:seminfo_semmni=100
set semsys:seminfo_semopm=100
set semsys:seminfo_semvmx=32767
------------------------------------------------------------------------------- ------------

What should I do? Am I suppose to only edit the system file as shown in step 5 or should I issue the prctl commands in addition to editing the system file? Or should I just issue the prctl commands?

Please help!
sikyalaSenior Database AdministratorAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

TintinCommented:
You can do either.

Adding entries to /etc/system was the old way of setting Oracle kernel settings, whereas using project settings is the preferred option now as it is more flexible/fine tuned.
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
sikyalaSenior Database AdministratorAuthor Commented:
Thank you for clearing that up for me. It worked.
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Unix OS

From novice to tech pro — start learning today.