Oracle FAQ | Your Portal to the Oracle Knowledge Grid |
![]() |
![]() |
Home -> Community -> Mailing Lists -> Oracle-L -> RE: datafile sizing question
What if we need Extent SIZES Greater than 20 MB to Check Fragmentation ?
-----Original Message-----
Sent: Thursday, September 26, 2002 2:33 PM
To: Multiple recipients of list ORACLE-L
We tend to use multiples of 1Gb and add 1 Mb to the file so that we get
2001, 10001 Mb etc
Solaris 2.8
LMT uniform extents range from 64K to 20Mb
John
-----Original Message-----
Sent: 25 September 2002 19:44
To: Multiple recipients of list ORACLE-L
We created two datafiles of 16GB+64K all LMT autoallocate ... never gave a problem. A basic testing concluded that fixed size allocation of 128M caused unnecessary delays whereas autoallocate was much faster. I don't know the full details yet, but I'll know soon.
Of course this is undergoing lot of testing (the whole application, no problems with datafiles yet), but we will probably settle for about 4GB+64K. This is AIX5L 64 bit running Oracle 9iR2.
Raj
QOTD: Any clod can have facts, but having an opinion is an art!
--
Please see the official ORACLE-L FAQ: http://www.orafaq.com
--
Author:
INET: John.Hallas_at_vodafone.co.uk
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).
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 Mon Sep 30 2002 - 03:43:22 CDT
![]() |
![]() |