SUMMARY: kernel parameters

Mariel Feder (mfeder@central.meralco.com.ph)
Thu, 12 Feb 1998 14:29:27 -0800

This list is the greatest thing that happens in the Internet world!!!!
I got an answer before getting a copy of my own posting.

ORIGINAL QUESTION
Hello everybody????

I was requested to modify the kernel parameters for oracle.
OS: Solaris 2.5.1 with recommended patches, on an E6000.

I added the following lines to the /etc/system:

*
*
* Variables for Oracle
set shmsys:shminfo_shmmax=134217728
set shmsys:shminfo_shmmin=1
set shmsys:shminfo_shmmni=150
set shmsys:shminfo_shmseg=10
set semsys:seminfo_semmns=2500
set semsys:seminfo_semmni=750
set semsys:seminfo_semmsl=300
set semsys:seminfo_semmap=750
set semsys:seminfo_semmnu=2500
set msgsys:msginfo_msgmap=1000
set msgsys:msginfo_msgmax=2048
set msgsys:msginfo_msgmni=600
set msgsys:msginfo_msgssz=8
set msgsys:msginfo_msgtql=1000

After rebooting the machine, the output from sysdef -i looks like this:

*
* IPC Messages
*
0 entries in msg map (MSGMAP)
0 max message size (MSGMAX)
0 max bytes on queue (MSGMNB)
0 message queue identifiers (MSGMNI)
0 message segment size (MSGSSZ)
0 system message headers (MSGTQL)
0 message segments (MSGSEG)
*
* IPC Shared Memory
*
0 max shared memory segment size (SHMMAX)
0 min shared memory segment size (SHMMIN)
0 shared memory identifiers (SHMMNI)
0 max attached shm segments per process (SHMSEG)
*

Why the Shared Memory and the Messages parameters turned into 0?????
What am I doing wrong????

ANSWER:

>From Jeff Waskilko:
"shared memory isn't initialized until it's used. Once you start
your database, you'll see the proper values reported."

The same happens with the rest of the parameters.

THANKS:

Thanks for their answer to:
Jeff Wasilko <jeffw@smoe.org>
Charlie Mengler <charliem@anchorchips.com>

and to the rest of the people whose answers are still on
their way.

Mariel

--
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Mariel Feder - I.T. Consultant mfeder@meralco.com.ph

Phone: (63) (2) 632.8862 / 632.8977 Fax: (63) (2) 632.8868

Meralco Electric Company Distributed Information Technology Team Manila - Philippines