Memory_target and sga_max_size parameter

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• Increase SGA_TARGET and SGA_MAX_SIZE

  Oracle Version: 10.2.0.4
  OS: Windows 64-bit
  
  Hi s/n,.
  I want to perform under task

  increase the size SGA_TARGET to the other 3 where 1 GB is allocated to the shared pool and 2 GB for the buffer cache. () Our SGA_MAX_SIZE = SGA_TARGET)

  kindly share your thoughts on the points below:
  

  is there Ant limited with size SGA_TARGET with 64-bit as 4 GB with 32-bit system.

  Is there any negative impact on the database when we increase size SGA_TARGET and SGA_MAx_Size

  is there a relationship between RAM or between RAM and SGA_TARGET and SGA_MAX_SIZE.

  Thank you...

  H,

  Is there any Ant limited with size SGA_TARGET with 64-bit as 4 GB with 32-bit system.

  See
  Windows memory configuration: 32-bit and 64-bit [873752.1 ID]

  Is there any negative impact on the database when we increase size SGA_TARGET and SGA_MAx_Size

  the SGA_MAX_SZE parameter is not dynamic in oracle 10g.

  To increase the size of the sga for your instance or down,
  1. make the entry in the pfile as sga_max_size = value. (usually pfile reside in "ORACLE_HOME\database") *.
  2 judgment of the DB
  3. start the PB with the file pfile as "SQL > STARTUP PFILE = 'path of the pfile edited'"
  4. your DB now works on pfile, to make the changes to spfile "SQL > CREATE SPFILE = 'path of the spfile' OF PFILE".
  5. immediate stop
  6. launch of the DB with the newly created spfile "SQL > STARTUP SPFILE = 'path of the spfile'"
  7 sql > show parameter LMS to verify your changes take effect
  8. you may need to increase the value of the parameter SGA_TARGET if it has been set. Its a dynamic parameter and can be changed by the ALTER command.

  * If you do not have a pfile file and then create a pfile file by "SQL > CREATE PFILE ="the pfile file path"OF SPFILE.

  Details:
  http://forums.Oracle.com/forums/thread.jspa?MessageID=9514566#9514566

  Respect of
  HELIOS

• 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

• memory_target and sga_target

  Our data base is 11g 2 on Redhat 52. I have a question about the new parameter 11g memory_target and the old sga_target. I understand that if memory_target is defined, sga and pga will automatic managed and optimized. So should I adjust sga_target. What restrictions and recommendations contained in the definition of the sga_target when memory_target is defined?
  
  Thank you.

  In Oracle 11 g MEMORY_TARGET controls the total amount of memory to Oracle for SGA and PGA. Oracle allocates memory from the PGA to the sessions, based on demand.
  You have not need define SGA_TARGET if you already MEMORY_TARGET game.

  Set possibly 0 SGA_TARGET, PGA_AGGREGATE_TARGET and other memory configuration settings (for example, SHARED_POOL_SIZE). If each of these parameters have nonzero values while the AMM is in effect, the values of the parameters define the minimum sizes for the specified memory region.

  ZlT

• Question about MEMORY_TARGET and MEMORY_MAX_TARGET and EM

  Good evening
  
  After a lot of reading and research on Google and ask Tom (and Jerry too!) and visit a multitude of websites, I still do not understand the exact scope of MEMORY_TARGET and MEMORY_MAX_TARGET. I would be very grateful to represent a clearexplanation and sensible, verifiable and technically correct as to what these two parameters and how they interact with each other, and why two different parameters are needed instead of one.
  
  The more clear statement, that I found so far is:
  
  Of [Oracle frequently asked Questions Wiki | http://www.orafaq.com/wiki/Memory_target]
  
  >
  MEMORY_TARGET stipulates the following:
  
  A single parameter for total size SGA and PGA
  < li > automatically resizes the SGA and PGA components
  < li > memory is transferred to the more need
  < li > uses workload information
  < li > uses internal advisory predictions
  < li > can be by DBCA at the time of the creation of the database.
  >
  
  This seems quite reasonable, but given that MEMORY_TARGET includes the SGA and PGA size, which would be necessary MEMORY_MAX_TARGET for? How did the memory represented by MEMORY_MAX_TARGET - MEMORY_TARGET used by Oracle? It is simply wasted? (Note: the maximum value of MEMORY_TARGET should, wisely, be lower or equal to MEMORY_MAX_TARGET)
  
  From the different point of view, when a database is created, we can take away from the o/s, a number X of GBs and drop it to Oracle by setting the MEMORY_MAX_TARGET parameter. Why Oracle not use all (by definition of a value of less than MEMORY_MAX_TARGET MEMORY_TARGET)? that said MEMORY_TARGET Oracle that doesn't MEMORY_MAX_TARGET (or vice versa)?
  
  Why would anyone want to define MEMORY_TARGET as inferior to MEMORY_MAX_TARGET?
  
  I appreciate a lot any help to clarify the issues above.
  
  Thank you very much
  
  John.

  I could not find the document that says that. Where did you find this statement? I ask because it would be nice if the document gave few details about how it is used on Unix.

  Here's the link:

  http://download.Oracle.com/docs/CD/B28359_01/server.111/b32009/tuning.htm#BABBJHAC

  HTH
  Girish Sharma

• 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

• Fixing Memory_target and Memory_max_target

  Hello
  
  I have 2 GB configured LMS.
  
  How calculate/repair the Memory_target parameter and memory_max_target?
  
  Thank you
  KSG

  Salvation;

  Oracle made in-house. Please check:
  Management (AMM) automatic memory on 11g [443746.1 ID]

  Respect of
  HELIOS

• 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.

• difference between compatible.rdbms in asm and compatible parameter database

  Hi gurus,

  Here, I have little doubt. What is the difference between compatible.rdbms and the compatible parameter database.

  We have a 2 node RAC on solaris. When I checked at the ASM instance level I found compatible.rdbms has the value 10.1.0.0.0 and compatible.asm 11.2.0.0.0 and compatible database is set to 11.2.0.0.0.

  Please guide me it will make a difference. Or I have to change the compatible.rdbms to a higher value.

  Thank you and best regards,

  Vincent Poorna Prasad.S

  When compatible.rdbms is set to 10.1.0.0.0, this means that the instance ASM (version 11.2.0.0.0) is compatible to support lower versions of instances of RDBMS from version oracle 10.1.0.0.0.

  If you don't want the ASM instance in support of the lower courts of RDBMS version, you can change the setting.

• exp and audit_trail parameter

  Hello
  I want to exp in the database. But I feel, I have not all tables in my dmp file. Because when I have imp this file I receive almost half of all tables, which must be after the import. In fact, I have a question: how the audit_trail parameter can affect this problem. I can handle this setting?

  Why I asked if you checked the export, it is because it is a known fact that exp will not export the tables that are present, but have zeros 0 if the source database had DEFERRED_SEGMENT_CREATION enabled (and enabled by default).

  See Articles Support Oracle 960216.1 and 1178343.1

  Hemant K Collette

• Manager and extract parameter: user name and password

  Hello
  
  (1)
  
  There is an optional recommended i.e. database USERID parameter when you configure the process manager by using the command "EDIT PARAMS MGR". What is the importance of this setting?
  
  (2) it is necessary to encrypt the password when you use the EXTRACT file. PARAMETER: PASSWORD?
  
  (3) we must create a separate database user if we use the DOOR of GOLD 11 g Release 1 (11.1.1) on Windows platform?
  
  Thank you

  The USERID parameter (with a corresponding PASSWORD):

  Setting the user database
  If you are using Oracle GoldenGate DDL support, specify the User Manager and the password with the USERID parameter.

  Encryption of the password belongs to you. You use a command line utility to generate an encrypted password, and then use this password encrypted in the file. Otherwise, the parameter is simply a text file on the operating system, and those who have at least read access to this file can see the unencrypted password.

  The Oracle installation guide recommends to create a database of GG user (for example, the user is the owner of the table of control points).

• 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.

• Lexical in several lines and all parameter headers print in PLSQL

  HI team,
  
  I have some requirement in plsql can someone please help with solutions.
  
  1. print the headers on several lines in pl/sql block using the dbms_output
  I have some column FILE_name, creation_date and so on, I want to print multiple line headers
  
  ex:_
  
  Creating files
  Name Date
  -------------------------------------------------------
  xxd_top.txt June 10, 2009
  der_top.txt August 21, 2009
  
  2 using the lexical in plsql block in the cursor as parameter
  
  ex:*
  
  cursor c1 (p_parameter)
  is
  Select * from EMP
  where & p_parameter
  
  and I'm assigning the value of p_parameter in the begin block.
  When compiling I was getting error when compiling.
  
  Please give me some suggestions to solve these problems
  
  Thanks in advance
  Sriram

  If you want to only several lines of DBMS_OUTPUT then call DBMS_OUTPUT. Put_line several times. I'm guessing that you want this layout:

  File        Creation
  Name        Date
  ----------- ------------
  xxd_top.txt 10-Jun-2009
  der_top.txt 21-Aug-2009
  

  The simplest approach would be just something like

  DBMS_OUTPUT.PUT_LINE('File        Creation');
  DBMS_OUTPUT.PUT_LINE('Name        Date');
  DBMS_OUTPUT.PUT_LINE('----------- ------------');
  

  I tried with CHF solution and it worked.

  Post an example of what you have tried that does not work, maybe someone will see what is wrong with it.

• How to solve error messages 'no such interface taken in charge"and"the parameter is incorrect. "

  I used the program "should I delete It ' the other day and uninstalled Free File Viewer and backup AVG toolbar.  Since then, most of the programs on the list of the Start button do not work.  I get no message at all or the above messages.  I am able to get to my email and FB and Internet sites, that I type in the address space.  I hope someone can help.

  Hello

  These are the normal reasons for problems with the system restore:

  1. If you are using Norton, you should disable Norton inviolable Protection before using the system restore.

  http://Service1.Symantec.com/support/sharedtech.nsf/pfdocs/2005113009323013

  AVG will cause problems with SR too.

  «Temporarily disable AVG»

  http://www.Avg.com/ww-en/FAQ.Num-3857

  2. try to use Safe Mode system restore.

  http://Windows.Microsoft.com/en-us/Windows7/products/features/system-restore

  "Start your computer in safe mode.

  http://Windows.Microsoft.com/en-us/Windows/Start-computer-safe-mode#start-computer-safe-mode=Windows-7

  3 Malware will stop at the system restore.

  Download, install, update and scan your system with the free version of Malwarebytes AntiMalware:

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  See you soon.