RE: Re-creating control files with larger maxdatafile setting

From: Naveen Nahata <naveen_nahata_at_mindtree.com>
Date: Thu, 19 Sep 2002 01:13:28 -0800
Message-ID: <F001.004D3380.20020919011328@fatcity.com>

KG,

you cannot increase the db_files parameters beyond the MAXDATALIFLES number. Oracle reserves space for storing the info about individual datafiles in the control files depending upon the MAXDATAFILES.

To increase the number of datafiles beyond this limit, you have to recreate the Control file.

TO create a control file, do a ALTER DATABASE BACKUP CONTROLFILE TO TRACE, which will create a script file to recreate the control file. You can edit that file and increase the MAXDATAFILES and then recreate the controlfile using the script file

Regards
Naveen

-----Original Message-----
Sent: Thursday, September 19, 2002 1:28 PM To: Multiple recipients of list ORACLE-L

George:

If you want to recreate the controlfile **just to ** increase the max datafiles, you can simply increase the db_files parameter and bounce the database. This will automatically chance the max datafiles settings when you create the additional datafiles.

-----Original Message-----
Leonard (ZA)
Sent: Thursday, September 19, 2002 12:13 AM To: Multiple recipients of list ORACLE-L

Hi all

Does someone maybe have a step by step guide to re-creating the control files. I have found that one the my databases the maxdatafiles has been set to small, would like to increase it now.

thx

George

George Leonard
Oracle Database Administrator
Dimension Data (Pty) Ltd
(Reg. No. 1987/006597/07)
Tel: (+27 11) 575 0573
Fax: (+27 11) 576 0573
E-mail:george.leonard_at_za.didata.com
Web: http://www.didata.co.za

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