RE: Managing Archived Redo Logs

From: John Kanagaraj <john.kanagaraj_at_hds.com>
Date: Wed, 23 Jul 2003 11:48:17 -0700
Message-Id: <25998.339221@fatcity.com>

Just to add that you _can_ be informed of this if you monitor the alert log. The following errors are logged (from a live system, and way back from 7.3.4!)

Thread 1 advanced to log sequence 69529
  Current log# 1 seq# 69529 mem# 0: /u090/oradata/XXXX/REDO0101.DBF   Current log# 1 seq# 69529 mem# 1: /u091/oradata/XXXX/REDO0102.DBF ...skipping...

ORA-00255: error archiving log 1 of thread 1, sequence # 69616
ORA-00312: online log 1 thread 1: '/u090/oradata/XXXX/REDO0101.DBF'
ORA-00312: online log 1 thread 1: '/u091/oradata/XXXX/REDO0102.DBF'
ORA-00272: error writing archive log
ORA-00334: archived log: '/u091/oradata/XXXX/arch/arch1_69616.log'

ARCH:
 ORA-00255: error archiving log 1 of thread 1, sequence # 69616

ORA-00312: online log 1 thread 1: '/u090/oradata/XXXX/REDO0101.DBF'
ORA-00312: online log 1 thread 1: '/u091/oradata/XXXX/REDO0102.DBF'
ORA-00272: error writing archive log
ORA-00334: archived log: '/u091/oradata/XXXX/arch/arch1_69616.log'

Mon May 13 05:36:57 2002
Thread 1 cannot allocate new log, sequence 69618 Checkpoint not complete

John Kanagaraj

-----Original Message-----
From: Rachel Carmichael [mailto:wisernet100_at_yahoo.com] Sent: Wednesday, July 23, 2003 12:30 PM
To: Multiple recipients of list ORACLE-L Subject: Re: Managing Archived Redo Logs

Yes you have to move them to tape and either compress or delete them once you have backed up the logs and datafiles.... Check out the Backup and Recovery Handbook by Velpuri, there are some pretty good examples there.

If you don't clean out the archive directory on occasion, the database will hang when that filesystem is filled. you won't get a message that it's hung but it will hang.

• "Farnsworth, Dave" <DFarnsworth_at_Ashleyfurniture.com> wrote:
  > I finally get to put our 8.1.7 on NT databases into archivelog mode.
  > We have a third party app vendor that would not support us if I did
  > this but I finally convinced them that is the way to go and it should
  > not effect the app. Anyway, I am reading chapter 7 from the
  > Administrators Guide, Managing Archived Redo Logs. I know I have to
  > set the parameters in the init.ora to achieve automatic archiving;
  >
  > log_archive_start=true
  > log_archive_dest_1 = "location=my\disk\drive"
  > log_archive_format=%%ORACLE_SID%%T%T%S.ARC -or somthing like that
  >
  > One thing I don't see in TFM is, do these archived redo logs just
  > keep accumulating in the destination directory set in the
  > log_archive_dest_1 parameter? Do I need to create a process to get
  > them to tape and then once on tape, delete these old archive redo
  > logs through my process?
  > I'm just excited to be able to finally go to archivelog mode. Once I
  > get the basics down then I want to investigate using RMAN.
  >
  > Thanks,
  >
  > Dave
  >
  > --
  > Please see the official ORACLE-L FAQ: http://www.orafaq.net
  > --
  > Author: Farnsworth, Dave
  > INET: DFarnsworth_at_Ashleyfurniture.com
  >
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Please see the official ORACLE-L FAQ: http://www.orafaq.net
-- 
Author: Rachel Carmichael
  INET: wisernet100_at_yahoo.com

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Received on Wed Jul 23 2003 - 13:48:17 CDT