Re: Curious /etc/system settings in Solaris

Hi Louis,

There is a Solaris Tunable Parameters Reference Manual available at: http://docs.sun.com:80/ab2/coll.707.1/SOLTUNEPARAMREF/@Ab2TocView?Ab2Lang=C&Ab2E nc=iso-8859-1
It will describe what these mean. All of these are valid Solaris variables.

Basically the msgsys values refer to the msg IPC layer. The semsys values refer to the semaphore IPC layer. The pln, soc, socal and fcaw variables refer to settings in various device drivers. The tune_t variables are solaris tuning variables.

See the above manual for more information.

Dave Miller
Sun Microsystems, Inc.

>Date: Mon, 26 Mar 2001 21:10:28 -0800
>To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
>X-Comment: Oracle RDBMS Community Forum
>X-Sender: Louis Avrami <avramil_at_concentric.net>
>From: Louis Avrami <avramil_at_concentric.net>
>Subject: Curious /etc/system settings in Solaris
>X-ListServer: v1.0g, build 70; ListGuru (c) 1996-2001 Bruce A. Bergman
>Mime-Version: 1.0
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>
>Hello all,
>
>One of the database servers that I am currently working on is
>a Sun 6500, running Solaris 2.7. It's a fairly large machine,
>with 20 gig of memory. It's being used for development and testing
>for multiple applications.
>
>When I began installing our particular versions of Oracle (7.3.4.5
>and 8.1.7) on the box, I noticed that there were several tunables
>settings in /etc/system that I had not seen on Solaris boxes
>previously. Is anyone familiar with the settings that I have
>listed below? I have placed an <---- to the right of the tunables
>in question. Could they perhaps be applicable to an HP-UX server?
> So far I've only worked on Sun, AIX and Linux servers. The
>shop where this server is located has been primarily HP-UX in
>the past, so I thought that these might be legacy settings.
>
>On Solaris, I've heard that it isn't a good idea to fool around
>too much with tunables if it isn't necessary. Portions of the
>kernel are "dynamic", and unneeded settings could limit OS operations.
>
>Some of the typical Oracle settings don't look optimal either,
> for example semmns=15000!!, but that is an issue for another
>time.
>
>Any info would be greatly appreciated,
>
>Lou Avrami
>
>
>
>* Following paraameters added under change # 144754 for Oracle
>install.
>set tune_t_gpgslo=250 <-----
>set tune_t_minarmem=100 <-----
>set tune_t_minasmem=250 <-----
>set msgsys:msginfo_msgmap=200 <-----
>set msgsys:msginfo_msgmni=100 <-----
>set msgsys:msginfo_msgtql=80 <-----
>set msgsys:msginfo_msgseg=2048 <-----
>set semsys:seminfo_semmap=100 <-----
>set semsys:seminfo_semmnu=800 <-----
>set semsys:seminfo_semume=100 <-----
>set pln:pln_enable_detach_suspend=1 <-----
>set soc:soc_enable_detach_suspend=1 <-----
>set socal:socal_enable_suspend=1 <-----
>set fcaw:force32 = 1 <-----
>set shmsys:shminfo_shmmax=4294967295
>set shmsys:shminfo_shmmin=1
>set shmsys:shminfo_shmmni=100
>set shmsys:shminfo_shmseg=10
>set semsys:seminfo_semmni=500
>set semsys:seminfo_semmsl=2010
>set semsys:seminfo_semmns=15000
>set semsys:seminfo_semopm=100
>set semsys:seminfo_semvmx=32767
>* End change # 144754
>
>
>
>
>--
>Please see the official ORACLE-L FAQ: http://www.orafaq.com
>--
>Author: Louis Avrami
> INET: avramil_at_concentric.net
>
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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: David Miller
  INET: djm_at_oregon.West.Sun.COM

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