How: Script archive log transfer to standby db

Hi,
I’m implementing disaster recovery right now. For some special reason, the only option for me is to implement non-managed standby (manual recovery) database.
The following is what I’m trying to do using shell script:
1.     Compress archive logs and copy them from Primary site to Standby site every hour. ( I have a very low network )
2.     Decompress archive logs at standby site
3.     Check if there are missed archive logs. If no, then do the manual recovery
Did I miss something above? And I’m not skill in to build shell scripts, is there any sample scripts I can follow? Thanks.
Nabil
Message was edited by:
11iuser

Hi,
Take a look at data guard packages. There is a package just for this purpose: Bipul Kumar notes:
http://www.dba-oracle.com/t_oracledataguard_174_unskip_table_.htm
"the time lag between the log transfer and the log apply service can be built using the DELAY attribute of the log_archive_dest_n initialization parameter on the primary database. This delay timer starts when the archived log is completely transferred to the standby site. The default value of the DELAY attribute is 30 minutes, but this value can be overridden as shown in the following example:
LOG_ARCHIVE_DEST_3=’SERVICE=logdbstdby DELAY=60’;"
1. Compress archive logs and copy them from Primary site to Standby site every hour.Me, I use tar (or compress) and rcp, but I don't know the details of your environment. Jon Emmons has some good notes:
http://www.lifeaftercoffee.com/2006/12/05/archiving-directories-and-files-with-tar/
2. Decompress archive logs at standby siteSee the man pages for uncompress. I do it through a named pipe to simplify the process:
http://www.dba-oracle.com/linux/conditional_statements.htm
3. Check if there are missed archive logs.I keep my standby data in recovery mode, and as soon as the incoming logs are uncompressed, they are applied automatically.
Again, if you don't feel comfortable writing your own, consider using the data guard packages.
Hope this helps. . .
Donald K. Burleson
Oracle Press author

Similar Messages

*HOW TO DELETE THE ARCHIVE LOGS ON THE STANDBY*

HOW TO DELETE THE ARCHIVE LOGS ON THE STANDBY
I have set the RMAN CONFIGURE ARCHIVELOG DELETION POLICY TO APPLIED ON STANDBY; on my physical standby server.
My archivelog files are not deleted on standby.
I have set the CONFIGURE ARCHIVELOG DELETION POLICY TO NONE; # default on the Primary server.
I've checked the archivelogs with the FRA and they are not beign deleted on the STANDBY. Do I have to do something for the configuation to take effect? Like run a RMAN backup?
I've done a lot ofresearch and i'm getting mixed answers. Please help. Thanks in advanced.
J

Setting the Policy will not delete the Archive logs on the Standby. ( I found a thread where the Data Guard product manager says "The deletion policy on both sides will do what you want" ). However I still
like to clean them off with RMAN.
I would use RMAN to delete them so that it can use that Policy are you are protected in case of Gap, transport issue etc.
There are many ways to do this. You can simply run RMAN and have it clean out the Archive.
Example :
#!/bin/bash
# Name: db_rman_arch_standby.sh
# Purpose: Database rman backup
# Usage : db_rman_arch_standby <DBNAME>
if [ "$1" ]
then DBNAME=$1
else
echo "basename $0 : Syntax error : use . db_rman_full <DBNAME> "
exit 1
fi
. /u01/app/oracle/dba_tool/env/${DBNAME}.env
echo ${DBNAME}
MAILHEADER="Archive_cleanup_on_STANDBY_${DBNAME}"
echo "Starting RMAN..."
$ORACLE_HOME/bin/rman target / catalog <user>/<password>@<catalog> << EOF
delete noprompt ARCHIVELOG UNTIL TIME 'SYSDATE-8';
exit
EOF
echo `date`
echo
echo 'End of archive cleanup on STANDBY'
mailx -s ${MAILHEADER} $MAILTO < /tmp/rmandbarchstandby.out
# End of ScriptThis uses ( calls an ENV) so the crontab has an environment.
Example ( STANDBY.env )
ORACLE_BASE=/u01/app/oracle
ULIMIT=unlimited
ORACLE_SID=STANDBY
ORACLE_HOME=$ORACLE_BASE/product/11.2.0.2
ORA_NLS33=$ORACLE_HOME/ocommon/nls/admin/data
LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib
LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib
LIBPATH=$LD_LIBRARY_PATH:/usr/lib
TNS_ADMIN=$ORACLE_HOME/network/admin
PATH=$ORACLE_HOME/bin:$ORACLE_BASE/dba_tool/bin:/bin:/usr/bin:/usr/ccs/bin:/etc:/usr/sbin:/usr/ucb:$HOME/bin:/usr/bin/X11:/sbin:/usr/lbin:/GNU/bin/make:/u01/app/oracle/dba_tool/bin:/home/oracle/utils/SCRIPTS:/usr/local/bin:.
#export TERM=linux=80x25 wrong wrong wrong wrong wrong
export TERM=vt100
export ORACLE_BASE ORACLE_SID ORACLE_TERM ULIMIT
export ORACLE_HOME
export LIBPATH LD_LIBRARY_PATH ORA_NLS33
export TNS_ADMIN
export PATH
export MAILTO=?? your email hereNote use the env command in Unix to get you settings.
There are probably ten other/better ways to do this, but this works.
other options ( you decide )
Configure RMAN to purge archivelogs after applied on standby [ID 728053.1]
http://www.oracle.com/technetwork/database/features/availability/rman-dataguard-10g-wp-1-129486.pdf
Maintenance Of Archivelogs On Standby Databases [ID 464668.1]
Tip I don't care myself but in some of the other forums people seem to mind if you use all caps in the subject. They say it shouting. My take is if somebody is shouting at me I'm probably going to just move away.
Best Regards
mseberg
Edited by: mseberg on May 8, 2012 11:53 AM
Edited by: mseberg on May 8, 2012 11:56 AM

How to delete archive logs on the standby database....in 9i

Hello,
We are planning to setup a data guard (Maximum performance configuration ) between two Oracle 9i databases on two different servers.
The archive logs on the primary servers are deleted via a RMAN job bases on a policy , just wondering how I should delete the archive logs that are shipped to the standby.
Is putting a cron job on the standby to delete archive logs that are say 2 days old the proper approach or is there a built in data guard option that would some how allow archive logs that are no longer needed or are two days old deleted automatically.
thanks,
C.

We are planning to setup a data guard (Maximum performance configuration ) between two Oracle 9i databases on two different servers.
The archive logs on the primary servers are deleted via a RMAN job bases on a policy , just wondering how I should delete the archive logs that are shipped to the standby.
Is putting a cron job on the standby to delete archive logs that are say 2 days old the proper approach or is there a built in data guard option that would some how allow archive logs that are no longer needed or are two days old deleted automatically.From 10g there is option to purge on deletion policy when archives were applied. Check this note.
*Configure RMAN to purge archivelogs after applied on standby [ID 728053.1]*
Still it is on 9i, So you need to schedule RMAN job or Shell script file to delete archives.
Before deleting archives
1) you need to check is all the archives are applied or not
2) then you can remove all the archives completed before 'sysdate-2';
RMAN> delete archvielog all completed before 'sysdate-2';
As per your requirement.

Shell script for archive log transfer

hi
I dont want to reinvent the wheel.
I am looking for shell script for log shipping to provide standby db.
What I want to do is, get the last applied archived log number from alert.log
Copy the files from archive destination according to this value.
Cheers

If you don't want to re-invent the wheel you use Dataguard, no scripts.
And your script should use the dictionary, instead of some bs method to read the alert.
v$archived_log has all information!
Also as far as I know, the documentation describes manual standby.
So apparently you not only don't want to reinvent the wheel, but you want the script on a silver plate on your doorstep!
Typical attitude of most DBAs here. Use OTN for a permanent vacation.
Sybrand Bakker
Senior Oracle DBA

Archived log missed in standby database

Hi,
OS; Windows 2003 server
Oracle: 10.2.0.4
Data Guard: Max Performance
Dataguard missed some of the archivelog files and but latest log files are applying. standby database is not in sync with primary.
SELECT LOCAL.THREAD#, LOCAL.SEQUENCE# FROM (SELECT THREAD#, SEQUENCE# FROM V$ARCHIVED_LOG WHERE DEST_ID=1) LOCAL WHERE LOCAL.SEQUENCE# NOT IN (SELECT SEQUENCE# FROM V$ARCHIVED_LOG WHERE DEST_ID=2 AND THREAD# = LOCAL.THREAD#);
I queried above command and I found some files are missed in standby.
select status, type, database_mode, recovery_mode,protection_mode, srl, synchronization_status,synchronized from V$ARCHIVE_DEST_STATUS where dest_id=2;
STATUS TYPE DATABASE_MODE RECOVERY_MODE PROTECTION_MODE SRL SYNCHRONIZATION_STATUS SYN
VALID PHYSICAL MOUNTED-STANDBY MANAGED MAXIMUM PERFORMANCE NO CHECK CONFIGURATION NO
Anyone can tell me how to apply those missed archive log files.
Thanks in advacne

Deccan Charger wrote:
I got below error.
SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT FROM SESSION;
ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT FROM SESSION
ERROR at line 1:
ORA-01153: an incompatible media recovery is activeYou need to essentially do the following.
1) Stop managed recovery on the standby.
ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL;2) Resolve the archive log gap - if you have configured FAL_SERVER and FAL_CLIENT Oracle should do this when you follow step 3 below, as you've manually copied the missed logs you should be OK
3) restart managed recovery using the command shown above.
You can monitor archive log catchup using the alert.log or your original query.
Niall Litchfield
http://www.orawin.info/
Edited by: Niall Litchfield on May 4, 2010 2:29 PM
missed tag

Skip archive log on logical standby

hi ,
I want to skip archive log from nmber 1150 to 1161 on logical standby dtbs.
I knw , we can skip ddl , dml on logical standby .
How can archive this ??
(oracle 10g entreprise edition )

Hello;
I do not believe this is an option. The closest to this would be "applying modifications to specific tables"
See :
9.4.3 Using DBMS_LOGSTDBY.SKIP to Prevent Changes to Specific Schema Objects
Data Guard Concepts and Administration 10g Release 2 (10.2) B14239-05
While this is not the answer you want the skip Archive would create a Gap and cause many other issues you don't want.
Best Regards
mseberg

Archive log missing on standby: FAL[client]: Failed to request gap sequence

My current environment is Oracle 10.2.0.4 with ASM 10.2.0.4 on a 2 node RAC in production and a standby that is the same setup. I'm also running on Oracle Linux 5. Almost daily now an archivelog doesnt make it to the standby and oracle doesnt seem to resolve the gap sequence from the primary. If I stop and restart recovery it gets the logfile and continues recovery just fine. I have checked my fal_client and fal_server settings and they look good. The logs after this error do continue to get written to the standby but the standby wont continue recovery until I stop and restart recovery and it fetches this missing log.
The only thing I know thats happening is that the firewall people are disconnecting any connections that are inactive for 60 minutes and recently did an upgrade that they are claiming didnt change anything:) I dont know if this is causing this problem or not. Any thoughts on what might be happening?
Error in standby alert.log:
Tue Jun 29 23:15:35 2010
RFS[258]: Possible network disconnect with primary database
Tue Jun 29 23:15:36 2010
Fetching gap sequence in thread 2, gap sequence 9206-9206
Tue Jun 29 23:16:46 2010
FAL[client]: Failed to request gap sequence
GAP - thread 2 sequence 9206-9206
DBID 661398854 branch 714087609
FAL[client]: All defined FAL servers have been attempted.
Error on primary alert.log:
Tue Jun 29 23:00:07 2010
ARC0: Creating remote archive destination LOG_ARCHIVE_DEST_2: 'WSSPRDB' (thread 1 sequence 9265)
(WSSPRD1)
ARC0: Transmitting activation ID 0x29c37469
Tue Jun 29 23:00:07 2010
Errors in file /u01/app/oracle/admin/WSSPRD/bdump/wssprd1_arc0_14024.trc:
ORA-03135: connection lost contact
FAL[server, ARC0]: FAL archive failed, see trace file.
Tue Jun 29 23:00:07 2010
Errors in file /u01/app/oracle/admin/WSSPRD/bdump/wssprd1_arc0_14024.trc:
ORA-16055: FAL request rejected
ARCH: FAL archive failed. Archiver continuing
Tue Jun 29 23:00:07 2010
ORACLE Instance WSSPRD1 - Archival Error. Archiver continuing.
Tue Jun 29 23:00:41 2010
Redo Shipping Client Connected as PUBLIC
-- Connected User is Valid
Tue Jun 29 23:00:41 2010
FAL[server, ARC2]: Begin FAL archive (dbid 0 branch 714087609 thread 2 sequence 9206 dest WSSPRDB)
FAL[server, ARC2]: FAL archive failed, see trace file.
Tue Jun 29 23:00:43 2010
Errors in file /u01/app/oracle/admin/WSSPRD/bdump/wssprd1_arc2_14028.trc:
ORA-16055: FAL request rejected
ARCH: FAL archive failed. Archiver continuing
Tue Jun 29 23:00:43 2010
ORACLE Instance WSSPRD1 - Archival Error. Archiver continuing.
Tue Jun 29 23:01:16 2010
Redo Shipping Client Connected as PUBLIC
-- Connected User is Valid
Tue Jun 29 23:15:01 2010
Thread 1 advanced to log sequence 9267 (LGWR switch)
I have checked the trace files that get spit out but they arent anything meaningful to me as to whats really happening. Snipit of the trace file:
tkcrrwkx: Starting to process work request
tkcrfgli: SRL header: 0
tkcrfgli: SRL tail: 0
tkcrfgli: ORL to arch: 4
tkcrfgli: le# seq thr for bck tba flags
tkcrfgli: 1 359 1 2 0 3 0x0008 ORL active cur
tkcrfgli: 2 358 1 0 1 1 0x0000 ORL active
tkcrfgli: 3 361 2 4 0 0 0x0008 ORL active cur
tkcrfgli: 4 360 2 0 3 2 0x0000 ORL active
tkcrfgli: 5 -- entry deleted --
tkcrfgli: 6 -- entry deleted --
tkcrfgli: 7 -- entry deleted --
tkcrfgli: 8 -- entry deleted --
tkcrfgli: 9 -- entry deleted --
tkcrfgli: 191 -- entry deleted --
tkcrfgli: 192 -- entry deleted --
*** 2010-03-27 01:30:32.603 20998 kcrr.c
tkcrrwkx: Request from LGWR to perform: <startup>
tkcrrcrlc: Starting CRL ARCH check
*** 2010-03-27 01:30:32.603 66085 kcrr.c
Beginning controlfile transaction 0x0x7fffd0b53198 [kcrr.c:20395 (14011)]
*** 2010-03-27 01:30:32.645 66173 kcrr.c
Acquired controlfile transaction 0x0x7fffd0b53198 [kcrr.c:20395 (14024)]
*** 2010-03-27 01:30:32.649 66394 kcrr.c
Ending controlfile transaction 0x0x7fffd0b53198 [kcrr.c:20397]
tkcrrasgn: Checking for 'no FAL', 'no SRL', and 'HB' ARCH process
# HB NoF NoS CRL Name
29 NO NO NO NO ARC0
28 NO YES YES NO ARC1
27 NO NO NO NO ARC2
26 NO NO NO NO ARC3
25 YES NO NO NO ARC4
24 NO NO NO NO ARC5
23 NO NO NO NO ARC6
22 NO NO NO NO ARC7
21 NO NO NO NO ARC8
20 NO NO NO NO ARC9
Thanks.
Kristi

It's the network that's messing up; unlikely due to firewall timeout as it waits for 60 minutes and you are switching every 15 minutes. There may be some other network glitch that needs rectified.
In any case - arch file missing/ corrupt / halfway through - FAL setting should have refetched the problematic archive log automatically.
As many had suggested already, the best way to resolve RFS issues I believe is to use real-time apply by configuring standby redo logs. It's very easy to configure it and you can opt for real-time apply even in max-performance mode that you are using right now.
Even though you are maintaining (I guess) 1-1 between primary & standby instances, you can provide both primary instances in fal_server (like fal_server=string1,string2). See if that helps.
lastly, check if you are having simiar issue at other times as well that might be getting rectified automatically as expected.
col message for a80
col time for a20
select message, to_char(timestamp,'dd-mon-rr hh24:mi:ss') time
from v$dataguard_status
where severity in ('Error','Fatal')
order by timestamp;
Cheers.

Archive log generation in standby

Dear all,
DB: 11.1.0.7
We are configuring physical standby for our production system.we have the same file
system and configuration for both the servers.. now primary archive
destination is d:/arch and the standby server also have d:/arch .Now
archive logs are properly logged into the standby and the data is
intact . the problem we have archive log generation proper in the
primary arch destionation. but no archive logs are getting
generated in the standby archive location. but archive logs are being
applied to the standby database ?
is this normal ?..in standby archive logs will not be generated ?
Please guide
Kai

There are no standby logs should be generated on standby side. Why do you think it should. If you are talking about parameter standby_archive_dest then, if you set this parameter oracle will copy applied log to this directory, not create new one.
in 11g oracle recomended to not use this parameter. Instead oracle recomended to set log_archive_dest_1 and log_archive_dest_3 similar to this:
ALTER SYSTEM SET log_archive_dest_1 = 'location="USE_DB_RECOVERY_FILE_DEST", valid_for=(ALL_LOGFILES,ALL_ROLES)'
ALTER SYSTEM SET log_archive_dest_3 = 'SERVICE=<primary_tns> LGWR ASYNC db_unique_name=<prim_db_unique_name> valid_for=(online_logfile,primary_role)'
/

Find how many archive logs are generated and backup through RMAN

friends,
how many arhcive logs are generating between 2 consecutive backups through RMAN.
Ur help is really appricated.
Thanks

Sorry, I misunderstood the question
I think you are not asking how many logs are generated since last backup. My initial repy was the answer for this
The answer of you question on 10G R2 is like below. Query groups your archivelog backup sessions and counts the logs in one session which is the number of generated archivelog file between two backup session/.
select session_key,count(sequence#) from V$BACKUP_ARCHIVELOG_DETAILS group by session_key order by 1 desc
Coskan Gundogar
http://coskan.wordpress.com

Physycal Standby archive log gap....

Archive log gap caused... The reason being before the logs can be shipped to standby location where deleted by rman backup... So restored the archives on primary database site back again... These old logs from the gap are not getting shipped to the standby site, but the new ones generated currently are getting shipped.
Can some one help what action do I have to take to resolve the gap? And how to know what's causing and not letting this shipping happen?
Or shall I manually ship these gap archive logs to the standby site?

1) Yep running 9i.. But still its not shipping...Are FAL_CLIENT & FAL_SERVER parameters are defined at standby level?
If not, define them at standby level. Those parameter will help to get missing (gap) archives from primary database.
2) If so shipped manually do have to register the archive logs? Just copy from primary to standby and don't need to register any gap, that was in 8i and when there was no background process MRP (media recovery process). If the standby database is in auto media recovery, then, it will automatically applies all the archived logs.
Jaffar

Standby database Archive log destination confusion

Hi All,
I need your help here..
This is the first time that this situation is arising. We had sync issues in the oracle 10g standby database prior to this archive log destination confusion.So we rebuilt the standby to overcome this sync issue. But ever since then the archive logs in the standby database are moving to two different locations.
The spfile entries are provided below:
*.log_archive_dest_1='LOCATION=/m99/oradata/MARDB/archive/'
*.standby_archive_dest='/m99/oradata/MARDB/standby'
Prior to rebuilding the standby databases the archive logs were moving to /m99/oradata/MARDB/archive/ location which is the correct location. But now the archive logs are moving to both /m99/oradata/MARDB/archive/ and /m99/oradata/MARDB/standby location, with the majority of them moving to /m99/oradata/MARDB/standby location. This is pretty unusual.
The archives in the production are moving to /m99/oradata/MARDB/archive/ location itself.
Could you kindly help me overcome this issue.
Regards,
Dan

Hi Anurag,
Thank you for update.
Prior to rebuilding the standby database the standby_archive_dest was set as it is. No modifications were made to the archive destination locations.
The primary and standby databases are on different servers and dataguard is used to transfer the files.
I wanted to highlight one more point here, The archive locations are similar to the ones i mentioned for the other stndby databases. But the archive logs are moving only to /archive location and not to the /standby location.

Archive logs to standby showing odd behavior.

10.2.0.2
HP 11.23
I'm monitoring the archive log transfer of files, and it appeared a little odd...as if the the files are not being applied.
So log into the system manually, and ran:
recover managed standby database cancel;
returned with recovery complete.
THen I issued:
recover managed standby database until cancel;
It asked for the files. I ran AUTO....it did it's thing, each one individually responding that
ORA-00279: change 7313758876671 generated at 04/24/2009 18:54:51 needed for
thread 1
ORA-00289: suggestion : /oraarch/swesc/peregrine_1_21380_640853326.arc
ORA-00280: change 7313758876671 for thread 1 is in sequence #21380
ORA-00278: log file '/oraarch/swesc/peregrine_1_21379_640853326.arc' no longer
needed for this recovery
Showing that it was successfully going through each archive file, applying it.
It did this until it looked for the next file that didn't exist.
This leaving the final log as 21393.
Then I issue an archive log list...
it shows 21357!
What is going ON?!

I ran archive log list on both systems to get that information.
after applying all the archive logs from the primary, the standby still showed the same sequence as it did to prior to recovery.
The recovery completed successfully, but archive log list doesn't show any change.
Meaning that before the recovery was run, it was 21357, after recovery was finished, it SHOULD have ready 23193, but it still read 21357.
Edited by: WillyB on May 6, 2009 11:07 AM

Purge archive logs standby database

How can I purge automaticly the archives logs in the standby database?
I have oracle versión 11.2.0.2 with +ASM in solaris.
Thanks.

My bad.
Will update my notes.
This is still there :
Applied Archivelogs Are Not Deleted On Physical Standby Site from Flash Recovery Area [ID 404338.1]
Since you have your DELETION POLICY set correctly you can also run something like this on the Standby :
run {
allocate channel for maintenance device type disk;
delete archivelog until time 'sysdate -5';
}Best Regards
mseberg
Edited by: mseberg on Aug 16, 2012 4:36 AM

Is there a way to apply archive logs, standby DB is opened with 'resetlogs'

Hi All,
I have setup a standby database (Oracle 10g SE). I applied hot backup and archive logs to the standby database till yesterday. I have opened the standby database using 'alter database open resetlogs;" and validated the application functionality using the standby database.
Now I want to regularly apply logs from the Primary database to the standby database, but today I have opened the standby database using 'alter database open resetlogs;"
Need assistance to know the way to apply archive logs, once the standby database is opened with 'resetlogs' option to keep it in sync with the Primary database.
Thanks
Kunal

Welcome to OTN,
I have setup a standby database (Oracle 10g SE). I applied hot backup and archive logs to the standby database till yesterday. I have opened the standby database using 'alter database open resetlogs;" and validated the application functionality using the standby database.Standby opened with *resetlogs* ? What you did? have you performed failover of standby database?
Now I want to regularly apply logs from the Primary database to the standby database, but today I have opened the standby database using 'alter database open resetlogs;"
Need assistance to know the way to apply archive logs, once the standby database is opened with 'resetlogs' option to keep it in sync with the Primary database.Have you enabled Flashback & created Restore point? If so you can do it.. If not rebuild standby again.
Check this scenario How To Open Physical Standby For Read Write Testing and Flashback [ID 805438.1]

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If you have FCP X 10.0.5 you do it the normal way.
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How: Script archive log transfer to standby db

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