Deletion of archivelogs

hello,
my database in archivelog mode.......
i am taking hotbackup of datafile,controlfile and archivelogs every day.
so what is the best way to remove archivelogs???
i am not taking cold backups
thanks in advance

http://download.oracle.com/docs/cd/B19306_01/server.102/b14220/backrec.htm#sthref2303
To quote the propaganda:
"Oracle recovery makes inconsistent backups consistent by reading all archived and online redo logs, starting with the earliest SCN in any of the datafile headers, and applying the changes from the logs back into the datafiles."

Similar Messages

Using RMAN to delete unwanted archivelog files..??

Hi All,
How can i remove the unwanted archivelog files from the disk, to manage the disk space usage, using RMAN?
My 10g database is in ARCHIVELOG mode and the OS is RHEL ES Release 3
when i tried with 'delete expired archivelog all;', i got the result as follows:
RMAN> delete expired archivelog all;
released channel: ORA_DISK_1
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=363 devtype=DISK
specification does not match any archive log in the recovery catalog
Please update...
Many Thanks in advance.....!!!

with the delete all input, can i assume that the archivelog files has been got deleted...Don't you trust Oracle ? :-)
You should see two series of messages, like below
channel ORA_DISK_1: starting archive log backupset
channel ORA_DISK_1: specifying archive log(s) in backup set
input archive log thread=1 sequence=73 recid=1 stamp=599697994
input archive log thread=1 sequence=74 recid=2 stamp=599698064
input archive log thread=1 sequence=75 recid=3 stamp=599698103
input archive log thread=1 sequence=76 recid=4 stamp=599698138
input archive log thread=1 sequence=116 recid=44 stamp=600271740
input archive log thread=1 sequence=117 recid=45 stamp=600271859
input archive log thread=1 sequence=118 recid=46 stamp=600277637
channel ORA_DISK_1: starting piece 1 at 04-SEP-06
channel ORA_DISK_1: finished piece 1 at 04-SEP-06
piece handle=/home/ora102/flash_recovery_area/DB102/backupset/2006_09_04/o1_mf_annnn_TAG20060904T154722_2hrcmh13_.bkp tag=TAG20060904T154722 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:37
channel ORA_DISK_1: deleting archive log(s)
archive log filename=/home/ora102/flash_recovery_area/DB102/archivelog/2006_08_28/o1_mf_1_73_2h6ok83j_.arc recid=1 stamp=599697994
archive log filename=/home/ora102/flash_recovery_area/DB102/archivelog/2006_08_28/o1_mf_1_74_2h6omjb9_.arc recid=2 stamp=599698064
archive log filename=/home/ora102/flash_recovery_area/DB102/archivelog/2006_08_28/o1_mf_1_75_2h6onq39_.arc recid=3 stamp=599698103
archive log filename=/home/ora102/flash_recovery_area/DB102/archivelog/2006_08_28/o1_mf_1_76_2h6oosvn_.arc recid=4 stamp=599698138
archive log filename=/home/ora102/flash_recovery_area/DB102/archivelog/2006_09_04/o1_mf_1_116_2hr5tw8c_.arc recid=44 stamp=600271740
archive log filename=/home/ora102/flash_recovery_area/DB102/archivelog/2006_09_04/o1_mf_1_117_2hr5ym80_.arc recid=45 stamp=600271859
archive log filename=/home/ora102/flash_recovery_area/DB102/archivelog/2006_09_04/o1_mf_1_118_2hrcm58z_.arc recid=46 stamp=600277637
Finished backup at 04-SEP-06

Regarding deletion of archivelogs.

Hello,
my database is in archivelog mode and i am taking hot backup of datafile everyday.now because of disk space i have to delete some archivelog files.
so till which date i can delete archivelogs???
thanks in advance...

Assuming you're using RMAN, you can set a retention period and just tell RMAN to delete the obsolete archived logs as part of the backup.
In general, you can delete archive logs whose maximum SCN is earlier than the earliest hot backup you want to be able to restore and roll forward. Depending on the organization and the database, different folks have very different retention periods-- some folks keep archived logs for months, others for a couple days. Of course, if you've backed up the archived logs already, you can likely delete them on disk, depending on how many copies of any particular log your recovery plan requires you to have.
Justin
Hans beat me to it.
I should also note that I'm assuming that archived logs in your environment are being used exclusively for backup & recovery purposes. You may need to keep them longer because they're required for auditing purposes, for Streams or other replication technologies, etc.
Message was edited by:
Justin Cave

Delete of archivelogs after backup

rman 9.2.0.4.0
aix 5.2.0.0
we have the following problem:
when rman backups and deletes archivelogs, the disk-space in the arch-dest remains occupied for a while.
our arch-dest went full, so we did a backup with delete all input. but as we could see in the alert-file, after rman ended, there was still a write-problem to this arch-dest. df-k . showed 100%. but later (we don't know exactly when) the space was free.
is this a normal behavior of rman / aix?

You can backup the archives and delete them once you back them up.
RMAN>backup archivelog all not backed up 1 times delete input;If you have archives that have been backed up and still existing on the disk, then you can try as:
RMAN>delete archivelog all completed before 'SYSDATE-5';This deletes archives that were generated 5 days back but make sure that they have been backed up before deleting.

RMAN job not deleting old archivelogs

I've setup an rman backup via dbconsole to backup db and archivelogs, for a retention period of 7 days, then delete obsolete. The database is 10GR2, running on windows 2008. For as yet unknown reasons, the cursed dbconsole quit working, and I haven't rebuilt it yet because I can't put this database in quiesce mode without pissing a lot of people off, so am using rman command line to check on backups etc.
I checked today, no obsolete backups found after running crosscheck database, and no obsolete logs after running crosscheck archivelog all;
Double checked recovery window and it is indeed 7 days, but there are archivelogs older than 7 days. When I run delete obsolete they dont get deleted, so I run delete archivelog all completed before 'sysdate - 7' and it deletes 314 old logs.
Why is rman not seeing these old logs? I believe I have the backups and archivelogs set to the same criteria, yet backups are being deleted over 7 days.
What am I missing here?
ps. for all the trouble dbconsole gives me, I'm tempted to go with rman scripts in windows scheduled tasks and just forget about it.. </end rant>

Hi,
How many old those archvies are?
did those archives are in your RMAN repository?
might it may be old when you have not configured retention policy..
or
delete those old archive logs once, crosscheck them all and lets see if you face any issues. still.
Thanks

RMAN doesnt delete Standby Archivelogs

piece handle=arch-s7618-p1-t715652396 tag=TAG20100407T001953 comment=API Version 2.0,MMS Version 5.0.0.0
channel ch01: backup set complete, elapsed time: 00:02:17
RMAN-08137: WARNING: archive log not deleted as it is still needed
archive log filename=/u06/DBFR/SUSM1C/arch_SUSM1C_1595_1_680380890.dbf thread=1 sequence=1595
RMAN-08137: WARNING: archive log not deleted as it is still needed
archive log filename=/u06/DBFR/SUSM1C/arch_SUSM1C_1596_1_680380890.dbf thread=1 sequence=1596
I keep seeing this messages when I try to backup archive logs.
Please note that this is a standby database.
Could someone let me know why it doesn delete these ?

Hi
Please see below explanation of the APPLIED column on this view:
Indicates whether the archivelog has been applied to its corresponding standby database (YES) or not (NO). The value is always NO for local destinations.
This column is meaningful at the physical standby site for the ARCHIVED_LOG entries with REGISTRAR='RFS' (which means this log is shipped from the primary to the standby database). If REGISTRAR='RFS' and APPLIED is NO, then the log has arrived at the standby but has not yet been applied. If REGISTRAR='RFS' and APPLIED is YES, the log has arrived and been applied at the standby database. You can use this field to identify archivelogs that can be backed up and removed from disk.
If this column is not updated then that suggests your standby isn't applying logs?
Thanks
Paul

Deleting old archivelogs

Hi,
Can anybody provide me a shell script which can delete 1 week old archivelogs?
Note : I am not using RMAN.
Thanks in advance...

version 10g
flashback on
archiving is maintain in flashback area
i see in alert.log that the warning about space.
i delete archive logs in flashback area manually.
but problem exists .
because it is test environment .i off the flashback and disable archiving.
i check V$FLASH_RECOVERY_AREA_USAGE it is still showing near 100% usage in which archiving file use nearly 84% while i delete all archive files manually.
Now i again want to enable archiving.
Extract from alert.log
ORACLE Instance orcl - Archival Error
Mon Jan 29 05:59:50 2007
ORA-16014: log 3 sequence# 160 not archived, no available destinations
ORA-00312: online log 3 thread 1: '/u/app/oracle/oradata/orcl/redo03.log'

Deletion of archivelog disk out of space

hi,
can anyone help me how to delete the archive logs as my disk space is going out of space.
thankyou
satyanag

Hi,
I totally agree with Khurram. The removal of archive logs might seem like quite simple subject on the surface - but you must give very serious thought to your backup and recovery strategy.
In answer to your question, this command will list any archivelogs (amongst other things) which have been backed-up and are no longer required to be held on disk:
report obsolete;
Run it, review the output, and if you want to go-ahead and remove the items identified, run this:
delete obsolete;
In the future, you might want to alter your backup script so that it automatically removes archive logs. You probably have a line that looks something like this:
backup archivelog all
Adding 'delete input' to the end will remove archive logs after they have been backed up.
backup they all delete input
Cheers,
Andy Barry
http://www.shutdownabort.com

Retention policy vs. Archivelog deletion policy

Environment:
Oracle EE 11.2.0.3 on Solaris 10.5
Which policy takes precedence?
My Retention Policy is set to 'Recovery window of 8 days' and my Archivelog deletion policy is set to 'backed up 2 times to disk'.
My DAILY full backup happens at 03:00am and uses the following commands:
backup incremental level 0 cumulative database tag 'full_daily' plus archivelog tag 'full_daily';
DELETE NOPROMPT OBSOLETE;I also have an archivelog backup that runs every 4 hours at 02:00, 06:00, 10:00, 14:00, 18:00 and 22:00 and looks like this:
backup archivelog all tag '&1';
delete noprompt ARCHIVELOG UNTIL TIME 'SYSDATE-8';With the archivelog backup running every 4 hours the logs are getting backed up to disk the required 2 times very quickly. Much sooner than 8 days! :-)
I have a problem where the archivelog backup that runs immediately AFTER the full database backup fails due to not being able to find some older archivelog files.
In looking at V$ARCHIVED_LOG the files were dated (COMPLETION_DATE) just outside the 8 day retention window but they had a status of 'A' (Archived) instead of the 'D' (Deleted) I was expecting. When I ran a 'Crosscheck archivelog all' it changed the statuses to 'D' and the next archivelog backup ran successfully.
What am I missing?
Should I change the archivelog deletion policy to something else? If so, what and why (just trying to understand!) ?
I am not using an FRA and have controlfile autobackup turned on.
Please let me know if you need more information. I have been scouring the docs and the 11g RMAN Oracle Press book but haven't found the trick yet!
Thanks for any assistance!
-gary

Hemant K Chitale wrote:
The Retention Policy applies to Backups. It does not apply to ArchiveLogs.
The ArchiveLog Deletion Policy applies to ArchiveLogs. It does not apply to Backups.
Since you have 2 copies of ArchiveLogs in the backups and these are retained for 8 days, a "delete noprompt ARCHIVELOG UNTIL TIME 'SYSDATE-8';" is overkill. Why retain 8 days of archivelogs on disk if there are 2 copies already backed up ?
Does your full backup that begins at 3am complete before 6am ? If it goes beyond 6am, it will be deleting some files after 6am but the "backup archivelog all" at 6am will expect some archivelogs (8 days old) to be present.
Hemant K Chitale
RMAN> CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '/oracle/oracle/.Autobackup_CTRL/%F.ctl_bkp';
Starting backup at 22-MAY-12
using channel ORA_DISK_1
channel ORA_DISK_1: starting datafile copy
input datafile file number=00001 name=/oracle/oracle/oradata/orcl/system01.dbf
output file name=/oracle/oracle/flash_recovery_area/ORCL/datafile/o1_mf_system_7vpg432v_.dbf tag=TAG20120522T122602 RECID=1 STAMP=783951999
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:46
channel ORA_DISK_1: starting datafile copy
input datafile file number=00002 name=/oracle/oracle/oradata/orcl/sysaux01.dbf
output file name=/oracle/oracle/flash_recovery_area/ORCL/datafile/o1_mf_sysaux_7vpg5l1n_.dbf tag=TAG20120522T122602 RECID=2 STAMP=783952038
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:35
channel ORA_DISK_1: starting datafile copy
input datafile file number=00003 name=/oracle/oracle/oradata/orcl/undotbs01.dbf
output file name=/oracle/oracle/flash_recovery_area/ORCL/datafile/o1_mf_undotbs1_7vpg6ms0_.dbf tag=TAG20120522T122602 RECID=3 STAMP=783952046
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:03
channel ORA_DISK_1: starting datafile copy
input datafile file number=00004 name=/oracle/oracle/oradata/orcl/users01.dbf
output file name=/oracle/oracle/flash_recovery_area/ORCL/datafile/o1_mf_users_7vpg6ptn_.dbf tag=TAG20120522T122602 RECID=4 STAMP=783952047
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:03
Finished backup at 22-MAY-12
Starting Control File and SPFILE Autobackup at 22-MAY-12
piece handle=/oracle/oracle/product/11.2.0/dbhome_1/dbs/controlfile_c-1309370544-20120522-02 comment=NONE
Finished Control File and SPFILE Autobackup at 22-MAY-12
ORA-00604: error occurred at recursive SQL level 1
ORA-06502: PL/SQL: numeric or value error: character string buffer too small
RMAN-08132: WARNING: cannot update recovery area reclaimable file list
old RMAN configuration parameters:
CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '%F';
new RMAN configuration parameters:
CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '/oracle/oracle/.Autobackup_CTRL/%F.ctl_bkp';
new RMAN configuration parameters are successfully stored
RMAN> delete noprompt ARCHIVELOG UNTIL TIME 'SYSDATE-8';
released channel: ORA_DISK_1
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=196 device type=DISK
RMAN-08138: WARNING: archived log not deleted - must create more backups
archived log file name=/oracle/oracle/flash_recovery_area/ORCL/archivelog/2012_04_28/o1_mf_1_2_7sq8tf5p_.arc thread=1 sequence=2
RMAN-08138: WARNING: archived log not deleted - must create more backups
archived log file name=/oracle/oracle/flash_recovery_area/ORCL/archivelog/2012_05_22/o1_mf_1_3_7vpdcjjm_.arc thread=1 sequence=3
ORA-00604: error occurred at recursive SQL level 1
ORA-06502: PL/SQL: numeric or value error: character string buffer too small
RMAN-08132: WARNING: cannot update recovery area reclaimable file list
RMAN> having problem with Archivelog backup.

ArchiveLog deletion using RMAN

Hi,
My backup failed for some time due to disk space issue which I was able to fix using setting db_recovery_file_dest_size but after the completion of backup script it didn't delete all the archivelog files. I still have log files from 05 Jan 2011 - 20 Feb 2011, but log files from 21 Feb 2011 - 18 Apr 2011 were deleted, When I run "crosscheck archivelog all;" it didn't show me archivelogs between 05 Jan 2011 - 20 Feb 2011 in the results but physically they are present in the archive folder.
1 How to delete these archive files to free up disk space?
2 Can I restore my database from last backup which was successful?
3 Why the RMAN was unable to delete my archivelog files?
My retention policy is set to Redundancy 1.
Thanks,
Prashanth

The older archivelogs are no longer in the control file if they are not being reported by CROSSCHECK.
Normally, when the FRA is close to 100% usage, Oracle can automatically purge known obsolete files. However, if you resized the FRA before the files were auto-purged and, subsequently, they became older than the keep time, Oracle became "unaware" of them.
You could re-CATALOG them with a CATALOG command and then DELETE them, with a DELETE command.
Hemant K Chitale

Unable to delete primary database archivelogs using RMAN

Hi,
rman unable to delete the archivelogs of primary database even it is in sync ( with standby database).
giving an error :-
archive log filename=+FLASH/simsval/archivelog/2012_05_24/thread_2_seq_1693.11359.784134169 thread=2 sequence=1693
RMAN-08137: WARNING: archive log not deleted as it is still needed
archive log filename=+FLASH/simsval/archivelog/2012_05_24/thread_2_seq_1694.5554.784135415 thread=2 sequence=1694
RMAN-08137: WARNING: archive log not deleted as it is still needed
archive log filename=+FLASH/simsval/archivelog/2012_05_24/thread_2_seq_1695.11643.784164901 thread=2 sequence=1695
RMAN-08137: WARNING: archive log not deleted as it is still needed
archive log filename=+FLASH/simsval/archivelog/2012_05_24/thread_2_seq_1696.12654.784164913 thread=2 sequence=1696
archive gap showing at primary.
SQL> select to_char (sysdate,'DD-MON-YYYY HH24:MI') as "Now", a.thread#, max(a.sequence#) as "Latest" ,max(b.sequence#) as "Last", max(a.sequence#)-max(b.sequence#) as "To Apply",to_char ( max (b.next_time), 'YYYY-MON-DD HH24:MI') as "LastDate",round ((sysdate - max (b.next_time) ) * 24 * 60, 0) as "Mins Behind" FROM V$ARCHIVED_LOG a , V$ARCHIVED_LOG b where a.applied = 'NO'and b.applied = 'YES' and a.thread# = b.thread# group by a.thread#, a.applied, b.thread#, b.applied order by a.thread#;
Now THREAD# Latest Last To Apply LastDate Mins Behind
01-JUN-2012 00:57 1 2321 2195 126 2012-APR-25 22:34 51983
01-JUN-2012 00:57 2 1729 1576 153 2012-APR-26 15:11 50985
no archive gap showing at standby .
SQL> select to_char (sysdate,'DD-MON-YYYY HH24:MI') as "Now", a.thread#, max(a.sequence#) as "Latest" ,max(b.sequence#) as "Last", max(a.sequence#)-max(b.sequence#) as "To Apply",to_char ( max (b.next_time), 'YYYY-MON-DD HH24:MI') as "LastDate",round ((sysdate - max (b.next_time) ) * 24 * 60, 0) as "Mins Behind" FROM V$ARCHIVED_LOG a , V$ARCHIVED_LOG b where a.applied = 'NO'and b.applied = 'YES' and a.thread# = b.thread# group by a.thread#, a.applied, b.thread#, b.applied order by a.thread#;
Now THREAD# Latest Last To Apply LastDate Mins Behind
01-JUN-2012 04:59 1 2321 2321 0 2012-MAY-31 22:32 386
01-JUN-2012 04:59 2 1729 1729 0 2012-MAY-31 22:32 386
any one please help me to resolve this.
thanks ,
Badam.
Edited by: 937988 on May 31, 2012 9:56 PM

Can you past here log_archive_ parameter on primary database?
Did you create data guard configuration with dgmgrl ?
Mahir M. Quluzade
www.mahir-quluzade.com

Delete archivelogs on a manual standby with RMAN

Hi,
Using Oracle 10.2.0.3 Standard Edition, I created a manual physical standby database with a standby controlfile. FRA is configured on both servers.
I want to use RMAN (recovery catalog in the controlfile) to delete archivelogs on the standby server using the following command:
rman target /
delete archivelog until time 'sysdate-5';
The synchronisation is monitored on a daily basis so there's no risk to delete an archivelog that is not applied.
My question: Is there a risk of corruption of the RMAN catalog (in the controlfile) in the event of a failover? I mean, will I be able to perform my RMAN backup as it becomes the primary?
Thanks
Christophe

I don't see a problem with this statement. In 10g - even when a controlfile is missing backup information for whatever reason - backups can be recataloged.
Werner

Apllied archivelogs are not deleted by RMAN

Hi there
Perhaps someone of you had such issue before.
We have a DG enviroment where we change a size of redo (both primary and standby). After that rman stopped to delete aplllied archivelogs on standby.
Everything works fine, archivelogs on primary are backed up and deleted but they are not deleted on standby. Execution of Rman delete appplied shows that there is nothing to delete.
Crosschek goes smoothly and without error.
There is no error in alert log.
Databases: 11gR2, 11.2.0.3.0 64 bits
Can anyone help me with it?
Best regards

b5acf956-8010-404f-83b3-40242279c723 wrote:
Hi there
Perhaps someone of you had such issue before.
We have a DG enviroment where we change a size of redo (both primary and standby). After that rman stopped to delete aplllied archivelogs on standby.
Everything works fine, archivelogs on primary are backed up and deleted but they are not deleted on standby. Execution of Rman delete appplied shows that there is nothing to delete.
Crosschek goes smoothly and without error.
There is no error in alert log.
Databases: 11gR2, 11.2.0.3.0 64 bits
Can anyone help me with it?
Best regards
Hi,
On primary RMAN can't delete archived logs from standby database.
You must call delete command on standby side.
Deletion of standby archived log is not depend deletion on primary.
Why you think, delete archivelog on priamry must be delete standby archivelog?
Regards
Mahir M. Quluzade

Archivelog deletion policy for GG

Hi All,
We have GG on one of the database.
The archivelog is getting deleted before it is applied to GG. The archivelog needs to be restored manually to proceed GG to work properly.
This is very frequent. Now every time the archivelog needs to be restored manually.
As far is i know there is archivelog deletion policy is there for standby. which will not delete the archivelog until it is applied to standby.
Is there any policy for GG so that archivelog which is required by GG should not delete by RMAN until it is applied to GG.
Kindly suggest.
Thanks,

Hi,
To ensure that RMAN retains all archive logs required by Oracle Golden Gate, when you add or register an Extract group in GGSCI with ADD EXTRACT (TRANLOG option) or REGISTER EXTRACT.
You can configure Extract to retain enough logs through RMAN for a normal recovery by using the TRANLOGOPTIONS parameter with the LOGRETENTION option set to SR.
You can read more about this feature in detail in the OGG Installation Guide on Oracle database, pages 58 & 59.
Regards,
RB

Standby Applied Archivelog Automatic Deletion

Dear OTN Community,
My Oracle version is 10gR2 and OS is HP-UX v11.31
My question here is i have configured the archivelog deletion policy from none to APPLIED ON STANDBY on the standby database since we are taking backups on the primary database. I left the archivelog deletion policy as none on the primary database.
I have also set the retention period from redundancy 1 to recovery window of 2 days on the primary database. So the archivelogs, backups etc. are older than 2 days should be tagged as expired.
Now should the Oracle delete the expired and applied archivelogs of primary database on the standby archive destination of the standby database, am i right?
The other question is, how can we delete applied archivelogs from the standby archive destination on the standby unix box automatically? Let's say, i do not want to delete them using a unix deletion script or taking a backup of the archivelogs on primary database. Is it possible on realtime with an Oracle parameter or not?
Thank you in anticipating,
Ogan

Hi Ogan,
It's better to set the parameter applied on standby on the standby AND on the primary side, anyvay one of the side will not do anything but after a switchover like this all is already set.
Then yes Oracle will delete expired backup, archivelog on the primary destination and delete the applied log on the standby destination.
For your other question, put the applied on standby also on the primary side.
Loïc

Deletion of archivelogs

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