Oracle FAQ Your Portal to the Oracle Knowledge Grid
HOME | ASK QUESTION | ADD INFO | SEARCH | E-MAIL US
 

Home -> Community -> Mailing Lists -> Oracle-L -> RE: Multiple Datafiles and performance?

RE: Multiple Datafiles and performance?

From: Fermin Bernaus <fbernaus_at_sammic.com>
Date: Thu, 07 Aug 2003 04:05:06 -0800
Message-ID: <F001.005C971C.20030807040506@fatcity.com>

        In my experience, spreading datafiles across volumes (specially if you are careful not to locate the a table's datafiles and its indexes datafiles in the same drive) greatly increases performance.

        As for the file size, I can not say because I have not tested it, but I think it should have no real impact compared to splitting it. Reorganizing the database regularly is a better way to optimize performance.

..............................................
Fermín Bernaus Berraondo
Dpto. de Informática
SAMMIC, S.A.
fbernaus_at_sammic.com
http://www.sammic.com
Telf. +34 - 943 157 331
Fax +34 - 943 151 276
..............................................


-----Mensaje original-----
De: Dave Phillips [mailto:dphillips_at_gasper-corp.com] Enviado el: miércoles, 06 de agosto de 2003 22:14 Para: Multiple recipients of list ORACLE-L Asunto: Multiple Datafiles and performance?

Oracle 8.1.7.4
Win2k

What is the consensus on datafile sizing and the impact/overhead multiple datafiles have on performance?

For example, if I have one 2.5g datafile, and three 1g datafiles, and I need more space, would it be better to increase the size of the 1g to 2g or add another 1g datafile?.
Is it better to keep them all uniform in size?

I would think having multiple datafiles that could be spread across drive volumes would be beneficial, am I wrong? (Wouldn't be the first time :)

TIA David Phillips
Support DBA
Gasper Corp.
BAARF member #30
--

Please see the official ORACLE-L FAQ: http://www.orafaq.net
--

Author: Dave Phillips
  INET: dphillips_at_gasper-corp.com

Fat City Network Services    -- 858-538-5051 http://www.fatcity.com
San Diego, California        -- Mailing list and web hosting services
---------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).

--

Please see the official ORACLE-L FAQ: http://www.orafaq.net
--

Author: Fermin Bernaus
  INET: fbernaus_at_sammic.com

Fat City Network Services    -- 858-538-5051 http://www.fatcity.com
San Diego, California        -- Mailing list and web hosting services
---------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). Received on Thu Aug 07 2003 - 07:05:06 CDT

Original text of this message

HOME | ASK QUESTION | ADD INFO | SEARCH | E-MAIL US