Solved

mutliple buffer pools on oracle 11g

Posted on 2011-02-11
5
909 Views
Last Modified: 2012-05-11
Is it possible to activate these parameters on oracle 11g for multiple buffer pools?

Can these parameters have in impact on batchs's elapsed time, please?
DB_BLOCK_BUFFERS=1000
DB_BLOCK_LRU_LATCHES=6
BUFFER_POOL_KEEP=(buffers:400, lru_latches:2)
BUFFER_POOL_RECYCLE=100

Thanks

Regards

Bibi
0
Comment
Question by:bibi92
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
  • 2
5 Comments
 
LVL 77

Expert Comment

by:slightwv (䄆 Netminder)
ID: 34870809
>>multiple buffer pools?

What do you mean?  Are you wanting to know if you can set DB_BLOCK_BUFFERS for specific pools?

If so, no.  You can control the individual sizes of the different pools but I would let Oracle take care of all this with Automatic Memory Management (AMM).
0
 
LVL 35

Expert Comment

by:johnsone
ID: 34872466
Are you talking about the DB_nK_CACHE_SIZE parameters?  These control block buffers for tablespaces with block sizes that are not the default block size for the database.

You would only need to specify these parameters if you created a tablespace with a specific block size.

If you are going to specify DB_nK_CACHE_SIZE, then you cannot specify DB_BLOCK_BUFFERS, you must specify DB_CACHE_SIZE in its place.
0
 

Author Comment

by:bibi92
ID: 34996014
I'm talking about DB_BUFFER_POOL.

Thanks

Regards

Bibi
0
 
LVL 77

Accepted Solution

by:
slightwv (䄆 Netminder) earned 500 total points
ID: 34997048
There is no db_buffer_pool paramter.

DB_BLOCK_LRU_LATCHES is an old 8i paramter and is 'hidden' in 9i.  It no longer exists.

The BUFFER_POOL paramters have been deprecated in 11g.  Again, I'll refer you to the docs:

http://download.oracle.com/docs/cd/E11882_01/server.112/e17222/changes.htm#UPGRD12570

For the rest always check the docs:
http://download.oracle.com/docs/cd/E11882_01/server.112/e17110/toc.htm
0
 

Author Closing Comment

by:bibi92
ID: 35142727
Thanks bibi
0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

I remember the day when someone asked me to create a user for an application developement. The user should be able to create views and materialized views and, so, I used the following syntax: (CODE) This way, I guessed, I would ensure that use…
Checking the Alert Log in AWS RDS Oracle can be a pain through their user interface.  I made a script to download the Alert Log, look for errors, and email me the trace files.  In this article I'll describe what I did and share my script.
This video shows how to copy a database user from one database to another user DBMS_METADATA.  It also shows how to copy a user's permissions and discusses password hash differences between Oracle 10g and 11g.
Via a live example, show how to take different types of Oracle backups using RMAN.

739 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question