Increase SGA_TARGET and SGA_MAX_SIZE

Similar Questions

• I understand SGA_TARGET and SGA_MAX_SIZE well?

  Let's say that I updated SGA_TARGET and SGA_MAX_SIZE 1024Mo 512 MB.
  
  As I understand it, this means that the total size of the SGA will never exceed 1024Mo (it's the "hard cap"). Oracle will try to keep things around 512 MB, but can explode up to 1024 MB, depending on the needs.
  
  Is this correct? Otherwise, I don't see the point of SGA_MAX_SIZE SGA_TARGET vs.
  
  BTW... I know that MEMORY_TARGET and MEMORY_MAX_TARGET are the new 11g params, but Oracle XE comes with those turned off and the 10g SGA_ * params and PGA_AGGREGATE_TARGET updated...?

  It is not correct.

  This means that you can increase up to SGA_MAX_SIZE SGA_TARGET without having to bounce the database.
  Also Oracle won't increase SGA_TARGET, it will just make sure that the sizes of the different basins do not exceed SGA_TARGET.
  You are still responsible for the management of SGA_TARGET.

  ------------
  Sybrand Bakker
  Senior Oracle DBA

• sga_target and sga_max_size tips

  Hello
  
  ABT a little my current system
  
  HP UX 11.11 oracle 10.2.0.4 EBS11.5.10
  memory 4 GB
  2 GB SGA
  
  I will increase to 20 GB physical emory today
  
  I need advice on implementing sga_target and sga_max_size
  
  currently my SGA_MAX_SIZE = 2GB

  If you increase the physical memory, and then set the SGA_MAX_SIZE max size estimated, based on the use of applications and keep the SGA_TARGET to any value you currently have.

  This will increase the SGA dynamically (SGA_TARGET) when the office application need and you no need to stop your database.

  It is always advisable to keep SGA_MAX_SIZE > SGA_TARGET.

  I hope this helps.

  Kind regards.
  Ludmilla amine
  http://oracleracexpert.blogspot.com
  [Click here to read installing and configuring ASM in 10g | http://oracleracexpert.blogspot.com/2009/08/install-and-configure-asmlib-in-10g.html]

  Published by: amine ludmilla on August 21, 2009 12:20

• Difference between SGA_TARGET and SGA_MAX_SIZE

  Can someone explain to me what is the diference between
  
  SGA_TARGET and SGA_MAX_SIZE
  
  Thanks in advance.

  SGA_TARGET specifies the total size of all components of the SGA.
  SGA_MAX_SIZE specifies the maximum size of the SGA for the lifetime of the instance.

  Read the documentation:
  http://download.Oracle.com/docs/CD/B19306_01/server.102/b14237/initparams193.htm#sthref592
  http://download.Oracle.com/docs/CD/B19306_01/server.102/b14237/initparams192.htm#sthref590

• SGA_TARGET and SGA_MAX_SIZE how to set minimum for pools

  Hello, we are on 10.2.0.4, Solaris 5.10. We use the EAMA, both SGA_TARGET and size SGA_TARGET are defined. Therefore, cache buffers, shared pool, large pool and pool of java are sized automatically. However, we have not all minimum values for people. How can I determine what should be the minimum value?
  
  Thank you!

  Hello
  To get the best of the EAMA, should be set to 0 and let the oracle to decide how many SGA_TARGET it distributes between the memory structures according to the load.
  If you really need the size of a minimum value, then this value is considered to be the minimum limit that is to say if you size db_cache_size = 1 g then it would be the lower limit. Then Oracle would be able to reduce db_cache_size up to 1 g.

  Size, use of commands such as:

  SQL > alter system set db_cache_szie = g 1 scope = spfile;

  Published by: Yasir Hashmi on October 13, 2010 10:27

• SGA_TARGET and sga_max_size question above

  Hello
  Accidentally, I changed the values of the sga_target with great value than the sga_max_size and made an immediate halt.
  
  Now, when I am trying to raise the instance, it gives the error below.
  
  [oracle@linuxappdev bin] $. / / nolog sqlplus
  
  SQL * more: release 11.1.0.7.0 - Production on sea 19 may at 22:27:13 2010
  
  Copyright (c) 1982, 2008, Oracle. All rights reserved.
  
  SQL > conn sys as sysdba
  Enter the password:
  Connect to an instance is idle.
  SQL > startup
  ORA-00823: specified value greater than sga_max_size sga_target
  SQL >
  
  
  
  How can I put the Forum up?
  I am new to oracle, please help.
  
  Thank you
  RAM
  
  Edited by: user622616 May 19, 2010 19:50

  Yes you can. If you use spfile, create a pfile with current values...

  SQL> conn / as sysdba
  Connected to an idle instance.
  SQL> create pfile='c:\initora1.ora' from spfile;
  
  File created.
  

  Then edit the pfile, startup pfile = create spfile from pfile, rebound.

• SGA_TARGET and SGA_MAX_SIZE?

  Dear professional,

  I have been asked by my client, it asks me to install Oracle 11 g software on three servers. One server has 16 has another GB to 32 GB, and another has 64 GB of RAM? What would be the best swap size? How memory I need to assign to CMS? What will be the SHmax and Shmin, kernal parameter? Please advice...

  Thank you

  Sagar

  Hey Sam,

  You need to get more information of the client for the size of the SGA parameter - example

  (1) the number of users at the same time, they will use the database

  (2) is OLTP/OLAP or Dataware house

  After getting all the information - you can test load server test - then according to the advisers, we can tell how sga is necessary.

• cannot increase more than 2048 M SGA_TARGET although SGA_MAX_SIZE = 8G

  AIX 6.1, Oracle 11.1.0.7
  
  Anyone know why I can't increase my more than 2048 M SGA_TARGET?
  
  I have my set SGA_MAX_SIZE to 8G, but still cannot increase SGA_TARGET.
  
  In the meantime, I just got an ORA-04031: unable to allocate 32 bytes of shared memory.
  
  REFERENCE:
  =========
  SQL > sho sga parameter
  
  VALUE OF TYPE NAME
  ------------------------------------ ----------- ------------------------------
  lock_sga boolean FALSE
  PRE_PAGE_SGA boolean FALSE
  Whole large SGA_MAX_SIZE 8G
  Whole large SGA_TARGET 2G
  
  1 SELECTED component, current_size, min_size, max_size
  2 from v$ memory_dynamic_components
  3 * WHERE current_size! = 0
  
  
  
  SQL > /.
  
  COMPONENT CURRENT_SIZE MIN_SIZE MAX_SIZE
  ---------------------------------------------------------------- ------------ ---------- ----------
  Shared pool 1744830464 738197504 1744830464
  large pool 67108864 67108864 67108864
  pool of Java 134217728 67108864 134217728
  rivers of 67108864 67108864 134217728 pool
  Target LMS 2147483648-2147483648-2147483648
  Cache buffer by DEFAULT 67108864 67108864 1073741824
  Target of 2147483648-2147483648-2147483648 PGA
  
  7 selected lines.
  
  Any ideas?

  You may need to change the/etc/security/limits file and looking for the flexible DATA segment, it must have the value-1 (unlimited).

  ~ Madrid
  http://hrivera99.blogspot.com

• Memory_target and sga_max_size parameter

  With the help of Oracle 11.2, I updated SGA_TARGET SGA_MAX_SIZE to 800M and 500M.

  Now, I decided to let Oracle completely assume management (MSA, right?) and set MEMORY_TARGET on 1000M and 1200 m MEMORY_MAX_TARGET.

  SGA_TARGET is now the minimum of storage allocated by SGA, as far as I figured out.

  However, this topic SGA_MAX_SIZE? This value remains "serves" and it is sensible to put it?

  Concerning
  Christian

  If SGA_MAX_SIZE is set, which is a limit of upper limit for your LMS to grow, you can encounter errors ora-4031 if you need an LMS more than set.

  Kind regards

  Suntrupth

• SGA_TARGET and / 3 GB switch

  Hi all
  
  We have Oracle 10g R1 installed on Windows 2003 Server Standard Edition SP1 with 4 GB of RAM installed.
  
  We want to implement the/3 GB switch in the boot.ini file in Windows to increase the memory available for Oracle to 3 GB.
  
  My question is: If I implmement the/3 GB switch, is still possible to use and set the SGA_TARGET?
  
  Some people claim that I should turn off the automatic memory management and manually set areas for the buffer cache and the cache of the library.
  
  I searched on the net and most of mixed articles this issue with AWE (Address Windowing Extensions). I do not implement the FEAR here, I just want to use the 3 GB of available RAM.
  
  Thanks in advance.

  OzOracle wrote:
  I intend to define SGA_TARGET = 1.6 GB and PAGA_AG... = 1 GB, is it safe?

  You can then play very close to the error-prone area. I presume that you have arrived at these figures after some calculations and look ups.

  To my knowledge, he leaves 400 MB to other applications and virtually, we have installed only Oracle and its control of database on this computer.

  Lol its one by the process boundary. When you set the/3 GB switch in boot.ini, each process running on the system has the right to have the 3 GB address space. So if you have any other memory hungry/application running process, your body will suffer because of the RAM limitation physics and subsequent Exchange.

• Updated November application nonpaged memory being increases dramatically and expanded memory is abnormally low.

  Last Tuesday, I installed the following updates on most of my servers (WinServer2003).  Since this related restart, not expanded on a server memory has continued to increase.  Normally, it levels out at about 60 000 KB and then rises slowly at a rate of approximately 5 000 KB per week.  Since the restart of Windows updates, last Tuesday, it rose to almost 250 000 Ko in a little over 3 days.  (I restarted Friday hoping that it was pure coincidence that would set a restart - no luck).  It increases at a rate of approximately 50 000 KB per day instead of 5 000 KB per week.

  While rises in nonpaged memory, expanded memory is strange.  Normally it fluctuates wildly around 210 000 KB, but now it seems to stabilize in a constant 100 000 Ko.

  What made updates to change my server?

  Last Tuesday, I installed the following updates on most of my servers (WinServer2003)...

  I think you forgot something...?

  Visit the Microsoft Solution Center and antivirus security for resources and tools to keep your PC safe and healthy. If you have problems with the installation of the update itself, visit the Microsoft Update Support for resources and tools to keep your PC updated with the latest updates.

  ~ Robear Dyer (PA Bear) ~ MS MVP (that is to say, mail, security, Windows & Update Services) since 2002 ~ WARNING: MS MVPs represent or work for Microsoft

• ThinkPad X220t - how to increase FPS and game performance?

  Hi all

  I have question about how to increase the frames per second for purposes of gaming performance.  I have a Lenovo X220t ThinkPads with a processor i7 with 8 GB of RAM and graphics card by default. Sometimes, I use the computer for games even if it is not specifically designed for this.  I have a problem so far with most of the games, but some of the games that are more graphic intense tend to be slow and have a FPS very low.  I know that the main reason for this problem is that the built-in graphics card is not designed for serious games, but I'm looking for advice or tips that will help.  For example, disable the ability of the touchscreen would increase game performance? Any help is appreciated.

  Thank you

  Cole

  p.s. other than this computer game has exceeded all my expectations. Excited use really touch Windows 8 features.

  
  

• Increase process and Sessions

  System: Oracle 11g R2 on SUSE Linux 11.
  
  Default processes: 150
  
  If there are 1000 or more (but.. 3000) users to the server Oracle (indedicated mode), I'm afraid of the lack of the number of sessions and the processes available to handle the traffic, so I intend to increase the number of processes to, say, 1000. I think that Oracle will adjust the sessions and operations accordingly.
  
  Would love to hear your opinions and comments
  
  
  Thank you

  Is based on the application server. Some will reuse connections, does essentially the same thing as shared server, but without using the db. Others have more than one session for each user (the one I work on that, but some of the work of the db discharges into the app, for a cost to not use all db optimizations).

  It could be that your 1000 sessions are actually a few active sessions at any time. All you can do is try and see what happens, sometimes there are configuration changes on the side of the app for specific load profiles.

  Do you have more information on your application server so people can respond appropriately?

• Increasing planning and Workspace Logg off time

  Hi all
  
  Now, we are in the Design Phase. I want to increase the time of closing of automatic planning session and the workspace. can someone tell me the steps?
  
  We use the Hyperion 9.3.1
  
  Thank you and best regards,
  Konrad.

  Hello

  Planning:-http://download.oracle.com/docs/cd/E12825_01/epm.111/hp_admin/ch12s15.html
  Workspace:-http://download.oracle.com/docs/cd/E10530_01/doc/epm.931/html_hs_admin/ch02s02s01.html

  See you soon

  John
  http://John-Goodwin.blogspot.com/

• Application 'Tweed' increasingly greater and slowing down

  I noticed the wire of time that my request of Tweed becomes slower and slower.  I just pulled up the application information, and it's an enormous size 17 024 Ko!  Apparently, this isn't clear all that there is storage when it is downloaded from Twitter.  I tried to delete the account and re-adjusting upward, but that did not bring the size down.  It seems I have to remove the entire application from my pre and reinstall it.

  Anyone else notice these issues of size and slowness with Tweed?

  Hi Silvrdrgn36

  If you go into the menu of the Tweed application or any other application, there is a link to the support site or contact more details the author. I suggest that notify you these guys there on the issue - this is probably a memory leak in the code which they will determine if you can get the info.

  http://pivotallabs.com/Contact_us