WHAT WILL BE SGA_TARGET AND SGA_MAX_SIZE VALUE
HI ALL
RAM MEMORY 7360
swap memory 8704 M
OS--AIX6
DATABASE SIZE ---50 GB
WHAT WILL BE SGA_TARGET AND SGA_MAX_SIZE VALUE
WHAT WILL BEThe values will be whatever you set them to be. OR sga_max_size will be automatically derived from db_cache_size + shared_pool_size + ............
yes, I know that you are looking for a "thumb-rule" and your question is "_What *should* be ..."_ You might get many answers.
The right answer is "what is really required based on the database, i/O pattern, concurrency etc
Hemant K Chitale
Similar Messages
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Diffrence Between SGA_TARGET and SGA_MAX_SIZE
Can Any one explain me what is the diference between
SGA_TARGET and SGA_MAX_SIZE
Thanks In Advance.sga_max_size -- This parameter sets the hard limit up to which sga_target can dynamically adjust sizes. At database start time, Oracle will allocate sga_max_size in RAM (or set sga_max_size to the sum of the existing pool sizes), so in order not to waste RAM it may be a good idea to have sga_max_size and sga_target at the same value, but there may be times when you want to have the capability to adjust for peak loads. By setting this parameter higher than sga_target, you allow dynamic adjustment of the sga_target parameter.
sga_target -- This parameter is new in Oracle Database 10g and reflects the total size of memory footprint a SGA can consume. It includes in its boundaries the fixed SGA and other internal allocations, the (redo) log buffers, the shared pool, Java pool, streams pool, buffer cache, keep/recycle caches, and if they are specified, the non-standard block size caches. -
Need Clarification on sga_target and sga_max_size
HI,
I need some clarification in SGA_TARGET and SGA_MAX_SIZE.
I have the parameter like below.
SGA_MAX_SIZE=10G
SGA_TARGET=9G
And I spread the 9G to all components like (DB_CACHE,SHARE_POOL etc.,).
My doubt, Incase db need the memory more than 9GB, Whether it automatically take the extra 1G from sga_max_size
or we have to change the sga_target to 10G.Unless and untill, we set the sga_taget=10G, The extra 1G(from sga_max_size) is not used.
Am i correct?No - its wrong. Any change in the value of SGA_TARGET affects only the sizes of the auto-tuned components. If you increases its value then increased memory will be distributed in only among the components controlled. So, yes 1GB will be used, because have sga_max_size=10G. If you decrease the value then reduced memory is taken back by the auto-tuning policy from one or more of the auto-tuned components.
If SGA_MAX_SIZE is greater than SGA_TARGET, you can increase SGA_TARGET without restarting the instance. Otherwise, you'd need to shutdown and restart the instance if you wanted to increase SGA_TARGET.
Regards
Girish Sharma -
Advice on sga_target and sga_max_size
hi,
a little abt my existing system
HP UX 11.11 oracle 10.2.0.4 EBS11.5.10
memory 4GB
SGA 2 GB
i will be increasing physical emory to 20GB today
i need advice on setting sga_target and sga_max_size
currently my SGA_MAX_SIZE=2GBIf you are increasing the physical memory then set the SGA_MAX_SIZE to max estimated size based on application usage and keep the SGA_TARGET to whatever value you have currently.
This helps to increase SGA dynamically (SGA_TARGET) when ever application needs and you no need to shutdown your database.
It is always advised to keep SGA_MAX_SIZE > SGA_TARGET.
Hope this helps.
Regards.
Satishbabu Gunukula
http://oracleracexpert.blogspot.com
[Click here to learn Install and Configure ASM in 10g|http://oracleracexpert.blogspot.com/2009/08/install-and-configure-asmlib-in-10g.html]
Edited by: Satishbabu Gunukula on Aug 21, 2009 12:20 PM -
I have purchsed iPhone 4S from US. Now my screen is broken and want to get it repaired. What will the cost and time taken in repairing of the same in US.
You cannot get warranty or out of warranty service in India on a US purchased phone. The warranty on the iPhone is not international.
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What will the up and coming iPhone include?
What will the up and coming iPhone include. The current iPhone 3G does not have things like forwarding SMS and copy and paste. When will this new iPhone come out and what will the new specs be?
This has been asked multiple times... check through the forum... i have provided links as well
http://www.apple.com/au/iphone/preview-iphone-os/
http://en.wikipedia.org/wiki/IPhoneOS_versionhistory
oh and the release date is sometime in the northern summer this year -
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Apple does not fix iDevices. Instead, they exchange yours for a refurbished or new replacement depending upon the age of your device and refurbished inventories. On rare occasions when there are no longer refurbished units for your older model, they may replace it with the next newer model.
ATTN: Beginning July 2013 Apple Stores are now equipped to do screen repairs/replacements in-house on iPhone 5 and 5C. In some cases while you wait. According to Apple this is the beginning of equipping Apple Stores with the resources needed to do most repairs for iPhones, iPads, and iPod Touches that would not require major replacements. Later in the year the services may be extended as Apple Stores become equipped and staffed with the proper repair expertise. So, if you need a screen repaired or a broken screen replaced or have your stuck Home button fixed, call your local Apple Store to see if they are now doing these in-house.
You may take your device to an Apple retailer for help or you may call Customer Service and arrange to send your device to Apple:
Apple Store Customer Service at 1-800-676-2775 or visit online Help for more information.
To contact product and tech support: Contacting Apple for support and service - this includes international calling numbers.
You will find respective repair costs in the appropriate link:
iPod Service Support and Costs
iPhone Service Support and Costs
iPad Service Support and Costs
There are third-party firms that do repairs on iDevices, and there are places where you can order parts to DIY if you feel up to the task:
1. iResq or Google for others.
2. Buy and replace screen yourself: iFixit -
SGA_TARGET and SGA_MAX_SIZE?
Dear Professional,
I have been asked by my client, He wants me to install Oracle 11g software in three servers. One server has 16GB another has 32 GB, and another has 64 GB of RAM? What would be the Best swap size? How memory I need to assign to SGA? what will be the SHmax and Shmin, kernal parameter? Please advice..
Thanks
SagarThe answer is 16GB, for all the machines.
See here for reference:
Oracle Database Quick Installation Guide
Hope that helps,
-Mark -
Am I understanding SGA_TARGET and SGA_MAX_SIZE correctly?
Let's say I set SGA_MAX_SIZE to 1024MB and SGA_TARGET to 512MB.
As I understand it, this means that the total SGA size will never exceed 1024MB (that's the "hard cap"). Oracle will try to keep things around 512MB, but may burst up to 1024MB as needed.
Is that correct? Otherwise, I don't see the point of SGA_MAX_SIZE vs. SGA_TARGET.
BTW...I know MEMORY_TARGET and MEMORY_MAX_TARGET are the new 11g params, but Oracle ships XE with those turned off and the 10g SGA_* params and PGA_AGGREGATE_TARGET set...?Hi,
In Oracle 11g MEMORY_TARGET is for automatic SGA and PGA management.MEMORY_MAX_SIZE is the maximum size to which your MEMORY_TARGET can be allocated.As shown below:
SQL> show parameter %MEMORY%
NAME TYPE VALUE
hi_shared_memory_address integer 0
memory_max_target big integer 1G
memory_target big integer 1G
But,When it comes to managing various other memory component like shared_pool,large_pool,Db_buffer_cache,log_buffer_cache,java_pool we still have to manage SGA_TARGET.
SQL> show parameter %SGA%
NAME TYPE VALUE
lock_sga boolean FALSE
pre_page_sga boolean FALSE
sga_max_size big integer 1G
sga_target big integer 0
Best regards,
Rafi.
http://rafioracledba.blogspot.com/
Edited by: Rafi (Oracle DBA) on Jun 22, 2011 11:54 PM -
AM Deadlink can no longer delete the dead bookmarks it finds on firefox, although it still can on all other browsers. what can i use to do this? checking each link myself and then deleting it manually is unrealistic. i would prefer to not switch browsers so are there any add-ons that can do this or work-arounds for AM Deadlink?
AM Deadlink appears to only work on .html files. Firefox now uses .sqlite file for bookmarks (places.sqlite) and it will not work to delete duplicates. See second bullet item here - http://www.aignes.com/deadlink_history.htm
The former '''''CheckPlaces''''' add-on still works and I have it installed on my system from a time when it was on the Mozilla Add-ons site. The add-on was withdrawn by the developer after some disagreement between himself and Mozilla. A link to a copy of the last version of '''''CheckPlaces''''' is on the page below. <u>Just a note: Use at your own risk as I can not vouch that this is the real "pure" original add-on, though I believe that it is.</u>
*CheckPlaces download link - http://daniel-lange.com/archives/71-SyncPlaces,-SortPlaces-...-preserving-these-and-other-excellent-Firefox-add-ons.html -
Sga_target and shared_pool_size
Hi All,
I am using 11GR2 on linux box. few days back , we hit the ora-4031 and we reported the issue to MOS, they then suggested to bump up the value of shared_pool_size to 3G, which is currently 1G.
Here , we are using sga_target and sga_max_size to 30G and also when I checked the current shared pool size, it's shows around 6G.
Since I am using the Automatic memory memory management along with the shared_pool_size parameter set to 1G. So, Do I really need to bump up the shared_pool_size as per MOS. doesn't this simply
means that , irrespective of shared_pool_size being set , oracle will ignore this value and size the shared pool according to the load in the database.
I would really appreciate , if you could offer your expert opinion here.
SQL> show parameter sga_
NAME TYPE VALUE
sga_max_size big integer 30G
sga_target big integer 30G
SQL> show parameter shared
NAME TYPE VALUE
hi_shared_memory_address integer 0
max_shared_servers integer
shared_memory_address integer 0
shared_pool_reserved_size big integer 338899763
shared_pool_size big integer 1G
shared_server_sessions integer
shared_servers integer 0
SQL> select sum(bytes)/1024/1024 mbytes
from v$sgastat where pool = 'shared pool'; 2
MBYTES
6464
Errors in file /db/prod01/oracle/admin/diag/rdbms/prod01/prod01/trace/prod01_m001_19998.trc:
ORA-04031: unable to allocate 12312 bytes of shared memory ("shared pool","unknown object","KKSSP^281","kglseshtTable")
Fri Aug 16 12:49:19 2013
Process m001 died, see its trace fileIf you are on 11.2(as you have said) , I would recommend that you use AMM only. Also, unsetting the shared pool parameter completely would leave it on the mercy of the AMM and that may go wrong as well. Since you are already hitting 4031, probably the best bet would be to set up a fixed, large sized shared pool as suggested by MOS which, beyond its initial value, would be managed by AMM.
Just my 2 cents
Aman.... -
I am working on an EnterpriseWiki site collection, and when users edit the page properties as follow:-
then will get all the fields inside the EnterpriseWiki content type as follow:-
now i want to hide all the fields except the ; Title & Name, so i edit the EditForm and i add the following script:-
<script>
$('#formTbl tr').filter(function ()
return !$(".ms-standardheader", this).text().match(/Name|Title/i);
}).remove();
</script>
so currently when users edit the wiki page properties they can only edit the Name & Title, because the script hide the other fields.
My question is what will happen to the other values such as the page content, assign to , etc that have been hidden.. I test this and seems that when editing the name and title the other values will not get effected which is what i need, but not sure how
did SharePoint handle this, i was afraid that hiding the other columns will set their values as null or empty if the user save the editform with only the title and name inside it ? can anyone adivce on this ?Hi John,
From your description, my understanding is that you are worried about the values of some fields
will been saved as empty if you hide them in EditForm.
If you hide some fields in EditForm, it means that you could not edit them. These fields’ values will not be changed after editing Title field or Name field. When you click Save button, they will be still the values before changing the Title field or Name
field.
Best Regards,
Vincent Han
TechNet Community Support
Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact
[email protected]
i found this very critical issue with hiding the fields from the edit form, now i wrote the following script inside the edit form , to hide all the fields except the Name
<script>
$(document).ready(function(){
$('#formTbl tr').filter(function () {
return !$(".ms-standardheader", this).text().match(/Name/i); }).hide();
$('#ctl00_ctl40_g_6c7d849e_da6b_4138_be9f_b99bde542065_ctl00_ctl02_ctl00_ctl04_c tl00_WebPartMaintenancePageLink').hide(); });
</script>"
. and now if I submit the editform (which only contain the Name) all the html tables inside the wiki page content will be removed. -
After serialize a object what will be the value of reference and primitive
After serialize a particular object what will the value its object references and primitives ???
please go through the following scenario
import java.io.*;
class Dog implements Serializable{
String dogString = "haiHai";
int dogSize = 555;
public String toString(){
return "This is Object Man";
class MyTestSerial
Dog d = new Dog();
MyTestSerial(){
try{
System.out.println("Before Serialization Dog object is : " +d);
System.out.println("Before Serialization d.dogSize : " +d.dogSize);
FileOutputStream fis = new FileOutputStream("MyTest.ser");
ObjectOutputStream obs = new ObjectOutputStream(fis);
obs.writeObject(d);
obs.writeInt(d.dogSize);
obs.writeObject(d.dogString);
System.out.println("After Serialization Dog object is : " +d);
System.out.println("Before Serialization d.dogSize : " +d.dogSize);
}catch(Exception e){
System.out.println(e);
public static void main(String[] args) { MyTestSerial t = new MyTestSerial(); }
In the above MyTestSerial class am serializing Dog object. After executing this obs.writeObject(d); the dog object will serialize without any problem.
Now, once i try to print the dog object and dogString it should print the null value right ??
and its primitive dogSize in the Dog class also print the value zero right??
But am not getting those results. What mistake am doing here???
Generally What will happen when we serialize a object or primitive value. After this what is the value of these types??
Can any one a give the solution???
Regards
Dhinesh Kumar RSerializing merely copies the object data to the stream, the content is unaffected.
-
SGA_MAX_SIZE and shmmax values
All,
My environment is
Oralce - 10.2.0.4.0
Two node RAC environment
Red hat Enterprise Linux 5 64 bit operating system
RAM size - 64 GB
shmmax - 4294967295 (one byte less than 4 GB)
SGA_MAX_SIZE = 3808M
SGA_TARGET = 3808M
PGA_AGGREGATE_TARGET=1000M
When I run the ADDM, it is telling that SGA was inadequately sized, increase the sga_target to 4760M. It says that 33% impact.
In my case, I need to increase SGA_MAX_SIZE.
I may be wrong, but from google, i assume that SGA_MAX_ZIZE can't be more than shmmax. Is it true?
If I have to increase the shmax, is it fine to increase to 5 GB based on ADDM recommendataion. Are there any harm to increase the shmmax to 20GB are so for safer side?
Any relation beween shmmax and RAM size?
If I have to alter the SGA_MAX_SIZE in RAC, I need to bounce the database or i can do one instance at a time right. If I am going with one node at a time, since it is a production, what will happen to the connections in that node when i am restarting that particular instance? I have a TAF policy of "Basic".
is it like all the select statements will be moved to survival node whereas insert, update and delete transactions will be broken?
Awaiting your help..Always it is recommended to keep "shmmax" half the size of physical memory.
First you need to increase shmmax and then increase the SGA_MAX_SIZE as per ADDM.
See the below doc for all your answers answers.
http://download.oracle.com/docs/cd/B19306_01/install.102/b15668/toc.htm#BGBDFIGF
Hope this solves your issue.
Regards,
Satishbabu Gunukula
hthttp://www.oracleracexpert.com
Click here for solution - [ORA-19755 Error during recovery/DB startup|http://www.oracleracexpert.com/2009/09/ora-19755-could-not-open-change.html]
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Edited by: Satishbabu Gunukula on Sep 23, 2009 2:43 PM -
What will happen when SGA_TARGET is more then SGA_MAX
Hi,
Can any one tell me what will happen when SGA_TARGET is more then SGA_MAX
if this situation happens either SGA_TARGET will resize to SGA_MAX or SGA_MAX resize to SGA_TARGET or error will come ? ??
thanks
Jagadeesh.Can any one tell me what will happen when SGA_TARGET is more then SGA_MAX
if this situation happens either SGA_TARGET will resize to SGA_MAX or SGA_MAX resize to SGA_TARGET or error will come ? ??Here is the ERROR
SQL> startup
ORA-00823: Specified value of sga_target greater than sga_max_size
SQL>
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