RE: datafile sizing question

From: DENNIS WILLIAMS <DWILLIAMS_at_LIFETOUCH.COM>
Date: Mon, 30 Sep 2002 05:58:21 -0800
Message-ID: <F001.004DC4E2.20020930055821@fatcity.com>

Raj

Print http://otn.oracle.com/deploy/availability/pdf/defrag.pdf
<http://otn.oracle.com/deploy/availability/pdf/defrag.pdf> - very
well-written, direct from Oracle's site, so he will accept it as official.

BTW - In this paper, for Oracle 8 and above, the correct extent sizes are 120-k, 4-m, and 128-m. The reasons you want to use these specific sizes are explained in the paper.

Dennis Williams
DBA
Lifetouch, Inc.
dwilliams_at_lifetouch.com

-----Original Message-----
Sent: Monday, September 30, 2002 7:33 AM To: Multiple recipients of list ORACLE-L

Rachel,

Are there any studies or papers that test and explain this new magic 4000 extents number? My manager is excited about LMT, but no so excited about number of extents. So, if there is a good paper, I can make him feel happy about this ...

Thanks in advance
Raj

Rajendra Jamadagni MIS, ESPN Inc. Rajendra dot Jamadagni at ESPN dot com
Any opinion expressed here is personal and doesn't reflect that of ESPN Inc.

QOTD: Any clod can have facts, but having an opinion is an art!

-----Original Message-----
<mailto:wisernet100_at_yahoo.com> ]

Sent: Monday, September 30, 2002 7:03 AM To: Multiple recipients of list ORACLE-L

with evenly sized extents, there is no such thing as fragmentation anymore and Oracle can deal with objects with numbers of extents up to about 4000 before it starts to slow down a bit.

-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: DENNIS WILLIAMS
  INET: DWILLIAMS_at_LIFETOUCH.COM

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Received on Mon Sep 30 2002 - 08:58:21 CDT