Re: How to create Redo Log Members. Oracle8.1.7.Thank You.

From: Meomeo Nguyen <meomeo22_at_YAHOO.COM>
Date: Wed, 22 May 2002 12:33:01 -0800
Message-ID: <F001.00468425.20020522123301@fatcity.com>

 Hi Rachel and Mike,
Thank you for your quick responses. I do appreciate it. Regards,
Trang
  Rachel Carmichael <wisernet100_at_yahoo.com> wrote: redo log file extensions (in fact, any file extension) are not fixed by the database but are whatever you want them to be.

Oracle uses a standard of "rdo" for redo logs, "ctl" for controlfiles, "dbf" for datafiles.

You can use whatever you want and it does not have to be consistent with what you used before. It's silly not to make it consistent but you can do it

• Meomeo Nguyen wrote:
  >
  > Hi,
  >
  > I just wanted to create new online redo log members for existing
  > groups. Currently I have 3 online redo log groups. Each one
  > contains only one member. Here is information about the online redo
  > log of a database
  >
  > select group#, bytes, members from sys.v$log;
  >
  > GROUP# BYTES MEMBERS
  > ---------- ---------- ----------
  > 1 512000 1
  > 2 512000 1
  > 3 512000 1
  >
  >
  > select * from sys.v$logfile where group# = 1;
  >
  >
  > GROUP# STATUS MEMBER
  > ---------- -------
  >
  

  ---

  
  > 1 /Disk01/app/oradata/ttdb/redo01.log
  >
  > select * from sys.v$logfile where group# = 2;
  >
  >
  > GROUP# STATUS MEMBER
  > ---------- -------
  >
  

  ---

  
  > 2 /Disk01/app/oradata/ttdb/redo02.log
  >
  > select * from sys.v$logfile where group# = 3;
  >
  >
  > GROUP# STATUS MEMBER
  > ---------- -------
  >
  

  ---

  
  > 3 /Disk01/app/oradata/ttdb/redo03.log
  >
  >
  >
  >
  > After reading the Database Administrator's Guide about how to create
  > online redo log members, I am a little bit confused about the file
  > extension for online redo log files. To create new online redo log
  > members for an existing group, use the
  >
  > alter database add logfile member '/oracle/dbs/log2b.rdo' to group 1;
  > (From Orcle8.1.6 Administrator's Guide).
  >
  > Based on my query information, member of group 1 is
  > /Disk01/app/oradata/ttdb/redo01.log. My question is why the
  > extension of the member of my redo log file is .log, which is
  > different from the Oracle Administrator's Guide's above example?Here
  > is my SQL statement to create redo log member for each existing
  > group.
  >
  > alter database add logfile member '
  > /Disk02/app/oradata/ttdb/redo01a.log to group 1; /* I place this
  > member of group 1 in different location.
  >
  > Just wondered whether this is a correct statement to create online
  > redo log member. If not, please show me how to fix it. Please help.
  >
  > I want to add new online redo log member for existing groups because
  > I want to safeguard against a single point of online redo log
  > failure.
  >
  > Thanks in advance.
  >
  > Trang
  >
  >
  >
  > ---------------------------------
  > Do You Yahoo!?
  > LAUNCH - Your Yahoo! Music Experience
  

  ---

Do You Yahoo!?
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-- 
Author: Rachel Carmichael
INET: wisernet100_at_yahoo.com

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---------------------------------
Do You Yahoo!?
LAUNCH - Your Yahoo! Music Experience
-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Meomeo Nguyen
  INET: meomeo22_at_yahoo.com

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Received on Wed May 22 2002 - 15:33:01 CDT