Oracle FAQ Your Portal to the Oracle Knowledge Grid

Home -> Community -> Mailing Lists -> Oracle-L -> RE: (Fwd) RE: (Fwd/Oracle) Does NT write to random locations on d

RE: (Fwd) RE: (Fwd/Oracle) Does NT write to random locations on d

From: Mark Leith <>
Date: Mon, 12 Mar 2001 06:56:04 -0800
Message-ID: <>

I have to agree with Ross on this one, O&O Defrag is "The Man" when it comes to defrag tools for NT/2000. i think the site is more :

and the link to the product: 0pro.html
(god I feel like Ep now:)

I've been using it for some time with no problems.

On the other side of this thread - There are NO problems with defragging your drives if Oracle is shut down. All that a defrag will do is just rearrange the blocks of a file (whether it be database file, system file, a pornographic jpeg :) so that they are contiguous on the disk, they will in no way whatsoever rearrange the content of those blocks..

I do this as regular as clockwork on my desktop (Win2K 8.1.6 R2), sometimes even with the database open! Never had a problem with Oracle due to a defrag. Patrice - It WILL speed up Oracle operations if you do a defrag, think about it - your trying to load a large chunk of data in to memory from disk, and the blocks of this table are splattered all over the disk. So the disk head has to hit one block from the disk, spin, move, hit again, spin, move, hit again.. Where as if they are contiguous the disk head has a hell of a lot less to do..

HTH Mark

-----Original Message-----
Sent: Saturday, March 10, 2001 01:40
To: Multiple recipients of list ORACLE-L

 IMHO, the disk toolsuite that is unbeatable is by O&O Defrag. something like
i have been using this to great effect for years. and
they have some truly and really neat optimization utilities.... NT users will like this site.....


Please see the official ORACLE-L FAQ:
Author: Mark Leith

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
To REMOVE yourself from this mailing list, send an E-Mail message
to: (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 Mon Mar 12 2001 - 08:56:04 CST

Original text of this message