SGA_TARGET question

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• Question about sga_target 10.2.0.5 Oracle with Windows 64 bit with 8 GB

  Hello world
  
  I need to know what is the best size sga_target for a server with 8 GB of RAM with Windows 2008 64 bit. and Oracle 10.2.0.5, also a question to all the gurues oracle :) can you check this init if see it's all ok Setup?, Miss, of course, the new value for the 8 GB.
  
  ORCL.__db_cache_size = 1207959552
  ORCL.__java_pool_size = 16777216
  ORCL.__large_pool_size = 16777216
  ORCL.__shared_pool_size = 352321536
  ORCL.__streams_pool_size = 0
  ...
  
  * .db_block_size = 8192
  * .db_domain = "
  * .db_file_multiblock_read_count = 16
  * .db_name = "ORCL".
  ...
  
  *. Dispatchers ='(Protocol=TCP) (SERVICE = ORCLXDB)"
  * .job_queue_processes = 10
  * .open_cursors = 5000
  * .pga_aggregate_target = 821035008
  * runoff = 300
  * .sga_target = 1610612736
  
  
  Thank you for all.
  
  Kind regards.
  
  Published by: user10182692 on February 21, 2012 05:08

  When you specify SGA_TARGET, automatic shared memory management is enabled and there is therefore no need SHARED_POOL_SIZE parameter. It will be managed automatically.

  PGA_AGGREGATE_TARGET, you can size it using V$ PGA_TARGET_ADVICE.

• 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.

• SQL * more to define SGA_TARGET

  I used SQL * Plus for define SGA_TARGET, should I also set components automatically size the SGA.
  
  SQL > show sga;
  
  Total System Global Area 4008620032 bytes
  Bytes of size 2227656 fixed
  2013266488 variable size bytes
  1979711488 of database buffers bytes
  Redo buffers 13414400 bytes
  
  Another point: when I own in initsid.ora file, I'm sga_target parameter is not reflecting here... I have to manually add it in file. see below:
  * .sga_max_size = 4009754624
  * .shared_pool_reserved_size = 197133336
  * .shared_pool_size = 1979711488

  Whether and how performance will be really depends on how much memory components should be and how they are used. Forums are unable to answer your question.

  You can use memory advisors in Enterprise Manager to see how Oracle recommend memory components to be.

  "unused" within the SGA memory is automatically attributed to the DB_CACHE_SIZE, SHARED_POOL_SIZE etc. components.

  Hemant K Collette

• AMM (sga_target) vs Linux HugePages

  I was told by the engineer of Redhat Linux Linux HugePages cannot be used with AMM (sga_target) on Oracle 10 g or 11g?
  
  I prefer to use the AMM.
  
  What is the best - with AMM (sga_target) or Linux HugePages?

  You can find the following interest: question of SGA Linux/cache

  "HugePages are a significant server use (memory and processing) resources, while the AMM adds even more software to give the appearance of this feature."

  The General recommendation in accordance with the Oracle AMM documentation, which is easier to manage.

• 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.

• Error message: ORA-00821: specified value sga_target 4 M is too small

  Hi all
  
  My database instance is down, when I'm trying to start, it throws an error:
  ORA-00821: sga_target 4 M value is too small, you must be at least 28 M
  
  The problems began when erroneous changed sga_target for some values without specifying the unit.
  My question is, how can I solve this problem, so that the database instance is down? I use spfile
  
  I tried to start the instance with pfile (start pfile='D:\oracle\product\10.2.0\admin\orcl\pfile\init.ora') it throws errors:
  LRM-00109: could not open parameter file "D:\oracle\product\10.2.0\admin\orcl\pfile\init.ora".
  ORA-01078: failure in the treatment of system settings
  
  
  Please someone help me
  
  Concerning
  Sadik

  Hello

  What you can do in this case and you do not have a good pfile, you can proceed as follows:

  1. find the spfile, normally in the directory of $ORACLE_HOME/dbs
  2. a copy of the spfile to be sure will not be damaged.
  3. on unix command prompt: string - a > newpfile.ora
  4. check with the newpfile.ora editor and change. The pfile file will contain all of the settings and you must change the SGA_TARGET value to a height of 400M or more. Smaller values can be made, but are not advised to 10 gr 2 or higher.
  5. try start the database using the newpfile.ora update.

  Hope this will solve your problem.

  Best regards, Gerwin

• 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

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  Hi JohnP007,

  Congratulations on your iPhone 7 more running iOS 10! I understand that some of your faces in the album of people pull up as a draft and you want to refresh. You can try to use the steps below to fix the faces on the thumbnails in albums.
  

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  3. Press on each photo that is not the person.
  4. Type > not this person.

  Hide people

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  3. Click Hide.

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  People in the Photos on your iPhone, iPad or iPod touch

  This should be corrected without delay faces. Please use the Apple Support communities to post your question. Good day.

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• I can't reset the security questions. We received notice as below:

  Hello world

  I can't reset the security questions. We received notice as below:

  "Cannot reset Security Questions."

  We have insufficient information to reset your security questions. "

  Please help me as soon as possible! Thank you very much.

  Hello

  You will need to contact the Apple Support.

  The information is available here:

  Contact Apple for assistance with the security of the Apple ID - Apple Support accounts

  (I'm afraid that no one here can solve the problem for you - this is a user-based community).

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  Now I'm trying to 2012 Macbook upgrade my Pro partner (on 10.11.6).  I got a Crucial SSD MX300 to replace his HARD drive.  Crucial comes with (or recommend) Acronis software.  And a lot of the messages of the forum recommend Carbon Copy Clone.

  My question is if I can use the same method for the cloning of the HD as my Macbook Air (just restore disk of Mac OS X utilities)?  This time, I'm upgrading HARD drive and I don't know if something is different.  At the same time, if I got lucky the first time, I don't not ruin Macbook Pro my spouse this time.

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  And I'm changing my Security Questions, but show me this sentence

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  You should contact the account of Apple security team. To join, click here and choose a method; If this page does not list one for your country or if you are unable to call, complete and submit this form.

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