SUMMARY: [Sol 2.4] /etc/system and kernel tuning problem?

From: Risto Tolonen (
Date: Fri Nov 18 1994 - 13:58:08 CST

I am retracting my question as I finally realized my stupidity and the fact that
the Solaris kernel is dynamic rather than static (as 4.1.x) - therefore the
questioned modules and their parameters are not displayable with any methods
until the facilities are loaded. There was no problem - just my confusion.

Kernel is tuned. Oracle's installed. I'm going home.

My naive question was:

> I have tried to modify the kernel - expand the shared memory segment size and
> add more semaphores for Oracle v7.1 - by adding the following lines to the
> /etc/system file. BTW, the system is SS20 running Solaris 2.4 w/ no patches.
> set shmsys:shminfo_shmmax=8388608
> set shmsys:shminfo_shmseg=10
> set semsys:seminfo_semmns=200
> set semsys:seminfo_semmni=70
> I'd like to get the default values for the rest of the parameters for both
> shmsys and semsys modules. Running 'sysdef' prior to rebooting showed the
> applicable default values for both of these modules. However, after I rebooted
> using the modified /etc/system file, 'sysdef' reported all of the module
> parameters to be 0 for both memory and semaphore modules. Furthermore, when I
> restored the old default /etc/system and rebooted, the parameters still show
> with 0 values as if no defaults were found.
> Isn't the syntax of the /etc/system file correct? Why doesn't the parameter
> values reported by 'sysdef' reflect the defaults + mods from the /etc/system
> file? How can I at least get the initial defaults restored?
Risto Tolonen Tel: (801)261-2617 Internet:
KIVA Fax: (801)268-8262

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