• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 826
  • Last Modified:

Oracle 11g: archive logs management

What is the best practice for archive logs management?
Partition for archive logs is getting filled up and it's well known that database stops when partition is full.

Is there a log rotation similar to mechanism presented in Linux?
Aren't archive logs deleted automatically after backup?
0
marianhe
Asked:
marianhe
  • 2
3 Solutions
 
Praveen Kumar ChandrashekatrDatabase Analysist Senior Commented:
You can configure in rman for auto deletion or archivelog i.e

rman>CONFIGURE ARCHIVELOG DELETION POLICY TO applied on standby;

or

you can use delete archivelog command in your backup scripts.

rman>RUN
{
  # manually allocate a channel, in order to specify that the backup run by this
  # channel should go to both pools "first_copy" and "second_copy"
  ALLOCATE CHANNEL c1 DEVICE TYPE sbt
      PARMS='ENV=(NSR_DATA_VOLUME_POOL=second_copy)';
  ALLOCATE CHANNEL c2 DEVICE TYPE sbt
      PARMS='ENV=(NSR_DATA_VOLUME_POOL=first_copy)';
  BACKUP CHANNEL C1 ARCHIVELOG UNTIL TIME 'SYSDATE'
    NOT BACKED UP 2 TIMES # back up only logs without 2 backups on tape
    TAG SECOND_COPY;
  BACKUP CHANNEL C2 ARCHIVELOG UNTIL TIME 'SYSDATE'
    NOT BACKED UP 2 TIMES # back up only logs without 2 backups on tape
    TAG FIRST_COPY;
}

# now delete from disk all logs that have been backed up to tape at least twice
DELETE ARCHIVELOG ALL
  BACKED UP 2 TIMES TO DEVICE TYPE sbt;

check these doc for refferences.

http://www.di.unipi.it/~ghelli/didattica/bdldoc/B19306_01/backup.102/b14191/rcmbackp009.htm

http://www.dbasupport.com/forums/showthread.php?61244-rman-CONFIGURE-ARCHIVELOG-DELETION
0
 
slightwv (䄆 Netminder) Commented:
>>Aren't archive logs deleted automatically after backup?

As mentioned above:  No.  Not unless you tell the backups to delete them.

>>What is the best practice for archive logs management?

Personally, I keep as many of them around on disk as I can for as long as I can.  How long for you depends on your backup strategy and tape rotation.

IMHO, you want as many copies of your archived redo logs on as many tapes that you can afford.
0
 
marianheAuthor Commented:
I've managed to set up archive logs management using Enterprise Manager console.
0
 
marianheAuthor Commented:
Enterprise Manager console is solution for those who prefer GUI to CLI.
0

Featured Post

Keep up with what's happening at Experts Exchange!

Sign up to receive Decoded, a new monthly digest with product updates, feature release info, continuing education opportunities, and more.

  • 2
Tackle projects and never again get stuck behind a technical roadblock.
Join Now