Re: Solaris Kernel Memory Parameters Recommendations?

From: <Jared.Still_at_radisys.com>
Date: Tue, 19 Feb 2002 13:25:28 -0800
Message-ID: <F001.00413869.20020219132528@fatcity.com>

In addition to what you've already received, I would include settting SEMMNU (semaphore undo structures ) equal to SEMMNI.

Not doing so can cause rather baffling errors at the OS level at times.

Jared

David Wagoner <dwagoner_at_arsenaldigital.com> Sent by: root_at_fatcity.com
02/19/02 12:04 PM
Please respond to ORACLE-L  

        To:     Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
        cc: 
        Subject:        Solaris Kernel Memory Parameters Recommendations?

I've read a couple of brief passages about setting the kernel memory parameters in UNIX that are required for an Oracle installation. The information found on MetaLink and in the Oracle 9i installation guide are brief at best and somewhat confusing for a non-UNIX-sys admin. like myself. Would some of you more experienced UNIX/Oracle DBAs please provide a plain English explanation describing your strategy in setting the following 7 parameters in the /etc/system file:  

SEMMNI
SEMMNS
SEMMSL
SHMMAX
SHMMIN
SHMMNI
SHMSEG   To use a simple example, let's say the server has 1 GB of RAM to work with.  

Thanks in advance for sharing,  

david  

David B. Wagoner
Database Administrator
Arsenal Digital Solutions Worldwide, Inc. 8000 Regency Parkway, Suite 110
Cary, NC 27511-8582
Tel. (919) 466-6723
Fax (919) 466-6783
Mobile (919) 225-4962
dwagoner_at_arsenaldigital.com
http://www.arsenaldigital.com/  

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