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Full Discussion: kernel parameter settings
Top Forums UNIX for Dummies Questions & Answers kernel parameter settings Post 32856 by grep on Monday 9th of December 2002 11:52:33 AM
Old 12-09-2002
kernel parameter settings
Hello All,

can someone clarify finally what are the kernel parameter settings
for ORACLE9i on SOLARIS9 ?

the following first part is copy paste from the sun's web rquirements
page for the installation


Kernel Parameter
Setting
Purpose
SEMMNI
100
Defines the maximum number of semaphore sets in the entire system.
SEMMNS
1024
Defines the maximum semaphores on the system. This setting is a
minimum recommended value, for initial installation only.

The SEMMNS parameter should be set to the sum of the
PROCESSES parameter for each Oracle database, adding the largest
one twice, and then adding an additional 10 for each database.
SEMMSL
256
Defines the minimum recommended value, for initial installation
only.
SHMMAX
4294967295
Defines the maximum allowable size of one shared memory segment.

4 GB = 4294967295
SHMMIN
1
Defines the minimum allowable size of a single shared memory
segment.
SHMMNI
100
Defines the maximum number of shared memory segments in the
entire system.
SHMSEG
10
Defines the maximum number of shared memory segments one
process can attac


AND THE FOLLOWING PART IS copy paste of another INSTALLATION GUIDE FOR ORACLE
VERSION 9.2..0.1.0
This is what they say:

Add or modify the following parameters, using any higher val
ues if they
already exist on your system. These settings can be placed at the end of the file.

set semsys:seminfo_semmni=100
set semsys:seminfo_semmns=1024
set semsys:seminfo_semmsl=256
set shmsys:shminfo_shmmax=4294967295
set shmsys:shminfo_shmmin=1
set shmsys:shminfo_shmmni=100
set shmsys:shminfo_shmseg=10


Please i will appreciate your time and help if you
can explain what are the right setings and format.

thanks,
 

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LEARN ABOUT OSX

ipcs

IPCS(1) 						    BSD General Commands Manual 						   IPCS(1)

NAME

     ipcs -- report System V interprocess communication facilities status

SYNOPSIS

     ipcs [-abcMmopQqSsTt]

DESCRIPTION

     The ipcs utility provides information on System V interprocess communication (IPC) facilities on the system.

     The options are as follows:

     -a      Show the maximum amount of information possible when displaying active semaphores, message queues, and shared memory segments.  (This
	     is shorthand for specifying the -b, -c, -o, -p, and -t options.)

     -b      Show the maximum allowed sizes for active semaphores, message queues, and shared memory segments.	The ``maximum allowed size'' is
	     the maximum number of bytes in a message on a message queue, the size of a shared memory segment, or the number of semaphores in a
	     set of semaphores.

     -c      Show the creator's name and group for active semaphores, message queues, and shared memory segments.

     -M      Display system information about shared memory.

     -m      Display information about active shared memory segments.

     -o      Show outstanding usage for active message queues, and shared memory segments.  The ``outstanding usage'' is the number of messages in
	     a message queue, or the number of processes attached to a shared memory segment.

     -p      Show the process ID information for active semaphores, message queues, and shared memory segments.  The ``process ID information'' is
	     the last process to send a message to or receive a message from a message queue, the process that created a semaphore, or the last
	     process to attach or detach a shared memory segment.

     -Q      Display system information about messages queues.

     -q      Display information about active message queues.

     -S      Display system information about semaphores.

     -s      Display information about active semaphores.

     -T      Display system information about shared memory, message queues and semaphores.

     -t      Show access times for active semaphores, message queues, and shared memory segments.  The access times is the time of the last con-
	     trol operation on an IPC object, the last send or receive of a message, the last attach or detach of a shared memory segment, or the
	     last operation on a semaphore.

     If none of the -M, -m, -Q, -q, -S, or -s options are specified, information about all active IPC facilities is listed.

RESTRICTIONS

     System data structures may change while ipcs is running; the output of ipcs is not guaranteed to be consistent.

BUGS

     This manual page is woefully incomplete, because it does not at all attempt to explain the information printed by ipcs.

SEE ALSO

     ipcrm(1)

AUTHORS

     Thorsten Lockert <tholo@sigmasoft.com>

BSD
								   June 18, 1994							       BSD
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