Physical Standby in Sync

Hi,
I have an physical standby in MaxPerformance (ARCH). Oracle Version 10.2.0.3.
It was managed by Data Guard Broker.
Primary is a RAC Cluster with Thread1 and Thread2.
By doing an select * from v$archive_gap returns no rows.
By doing a query on the Standby Site von v$archived_log and checking for
applied='NO' I get a few number of rows.
Here the select:
select sequence#,archived,applied,to_char(first_time,'YYYY.MM.DD HH24:MI:SS')
from v$archived_log
where to_char(first_time,'YYYY.MM.DD')>'2008.04.01'
order by applied
SEQUENCE# ARCHIVED APPLIED TO_CHAR(FIRST_TIME,'YYYY.MM.DDHH24:MI:SS')
25715 YES NO 2008.04.19 14:23:36
21144 YES NO 2008.04.19 14:12:49
21145 YES NO 2008.04.19 14:23:36
25716 YES NO 2008.04.19 17:37:49
25722 YES NO 2008.04.19 18:04:06
25739 YES NO 2008.04.19 18:50:16
25743 YES NO 2008.04.19 19:05:29
25745 YES NO 2008.04.19 19:06:14
25744 YES NO 2008.04.19 19:05:36
25742 YES NO 2008.04.19 18:55:13
25724 YES NO 2008.04.19 18:04:51
25721 YES NO 2008.04.19 17:46:51
25719 YES NO 2008.04.19 17:46:21
21147 YES NO 2008.04.19 17:38:13
Are the Primary and Standby in Sync?
Does anybody have an select for doing an check manually?
regards

there might be time log between standby and primary..
where is mode of standby?
--Girish                                                                                                                                                                                           

Similar Messages

  • Physical Standby re-sync

    Hi,
    I have gone through the following link in order to re-sync my physical standby with the primary db . The physical standby had nearly 2500 archive log gap but resolved based on below link :
    http://www.bestremotedba.com/oracle-10g-dataguard-sync-standby-database/
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    imran khan

    I have gone through the following link in order to re-sync my physical standby with the primary db . The physical standby had nearly 2500 archive log gap but resolved based on below link :
    http://www.bestremotedba.com/oracle-10g-dataguard-sync-standby-database/
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    Oracle DB version : 10.1.0.3
    OS version : Windows 2003 serverFurther dataguard/standby related questions, please post here Oracle Discussion Forums » High Availability » Data Guard
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    AFAIK, you have to either restore those archives (or) re-create standby database.
    If you do not have much space, try to restore less number of archives, apply them later you can clean up & again start restore. its hectic.
    So it depends on your log file size , lets suppose 50mb then
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  • How To Check Whether Physical Standby is in Sync with the Primary

    hi All,
    I'm new in data guard. In our current production, my boss is asking me to write a shell scripts monitoring physical standby and primary archive is sync (archive gap)
    I'm referring metalink [ID 861595.1], but when i ran the first query in Primary node, the screen hang.
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    ========
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      -----------------------------------   Waited  ----------  ------------
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      control file sequential read        16841        0.05         30.88
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    Thanks in advance.
    Regards,
    Klnghau

    Hello;
    Note 861595.1 has not been subject to an independent technical review. Not sure if that make it bad or not.
    This is what I'm using: ( I spool this to a file and have it e-mailed to me daily)
    PROMPT
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    PROMPT
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    column applied format a10
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    prompt
    prompt----------------Last log on Primary--------------------------------------|
    prompt
    select max(sequence#) from v$archived_log where NEXT_TIME > sysdate -1;
    Best Regards
    mseberg

  • Issue with physical standby database not in sync with primary

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    HI CKPT,
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    Informational 0 ARC1: Archival started 20-MAR-2012 06:51:36
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    Informational 0 ARC0: Becoming the 'no SRL' ARCH 20-MAR-2012 06:51:36
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    Next log sequence to archive 0
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    -rw-r----- 1 oracle dba 757698048 Mar 20 06:41 1_4_777567883.dbf
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    -rw-r----- 1 oracle dba 323025920 Mar 20 06:43 1_7_777567883.dbf
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    -rw-r----- 1 oracle dba 2560 Mar 20 07:31 1_13_777567883.dbf
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  • Checking  Whether Physical Standby is in Sync with the Primary

    I writing script to alert dba if primary and standby database are not in sync. I use article - How To Check Whether Physical Standby is in Sync with the Primary? ID 861595.1      
    It suggests comparing Last Sequence Generated on primary and Last Sequence Received on standby for each thread. And if they are not equal - NOT in sync.
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    Edited by: user613441 on Jan 6, 2010 9:16 PM
    Edited by: user613441 on Jan 6, 2010 9:17 PM

    deleted

  • Log apply was not sync in physical standby

    Hi Gurus,
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    Hello;
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    Please feel free to revert , if any question is unclearWhat is a long time? If you force a few log switches on the Primary does it take a long time for each one? Or longer?
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    mseberg

  • Problems while creating a physical Standby

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    -rw-r----- 1 oracle oinstall 584704 Jul 17 14:42 1_15_595767954.dbf
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    Although there still seems to be something wrong, the archived log file transmission seems to work since there is no error reported on the log archive destination:
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    And after I manually force a log switch I see that archived redo logs were applied on the standby database:
    select sequence#, applied from v$archived_log order by sequence#;
    SEQUENCE# APPLIED
    27 YES
    28 NO
    28 YES
    29 NO
    29 YES
    Unfortunately because of the recovering problem I cannot open the database to see if the changes were applied. So my first question is, how can I get the standby database completely recovered ??
    In addition to this I was expecting that the changes to the standby database were made immediately since I choosed LGWR sync but I have to manually force the logfile switch. As I already mentioned a standby redo log file is available as well.
    Thanks for your help,
    Philipp.

    Hi,
    since it does not seem to work with just copying the datafiles I switched to RMAN. I created a full database backup from Enterprise Manager. Similiar to http://dizwell.com/main/content/view/81/122/1/1/ I tried to duplicate the database to the standby instance (running on a different server). But unfortunately I receive error messages that the files, previously created, cannot be found:
    channel d1: starting datafile backupset restore channel d1: specifying datafile(s) to restore from backup set restoring datafile 00001 to /oradata/ORAMPPRD/data/1.dbf restoring datafile 00002 to /oradata/ORAMPPRD/data/2.dbf restoring datafile 00003 to /oradata/ORAMPPRD/data/3.dbf restoring datafile 00004 to /oradata/ORAMPPRD/data/4.dbf channel d1: reading from backup piece /opt/oracle/ora10/product/10.2.0.1.0/dbs/0bhoiq60_1_1
    ORA-19870: error reading backup
    piece /opt/oracle/ora10/product/10.2.0.1.0/dbs/0bhoiq60_1_1
    ORA-19505: failed to identify file
    "/opt/oracle/ora10/product/10.2.0.1.0/dbs/0bhoiq60_1_1"
    ORA-27037: unable to obtain file status
    SVR4 Error: 2: No such file or directory Additional information: 3 failover to previous backup
    But when I crosscheck my backup inside RMAN it clearly shows the backup files:
    RMAN> crosscheck backup;
    backup piece
    handle=/opt/oracle/ora10/product/10.2.0.1.0/dbs/0bhoiq60_1_1 recid=7
    stamp=596207811
    crosschecked backup piece: found to be 'AVAILABLE'
    I already checked the file permissions, everybody on the system is able to access this file.
    Do you know what is going wrong here ??
    Cheers,
    Philipp.

  • Corrupting the block to continue recovery in physical standby

    Hi,
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    Database Type: Data Warehouse
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    Media Recovery Log /u01/archive/<sid>/1_50741_651679913.arch
    Fri Feb 11 05:52:06 2011
    Exception [type: SIGSEGV, Address not mapped to object] [ADDR:0x7FFFD2F18FF8] [PC:0x60197E0, kdr9ir2rst0()+326]
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    ORA-07445: exception encountered: core dump [kdr9ir2rst0()+326] [SIGSEGV] [ADDR:0x7FFFD2F18FF8] [PC:0x60197E0] [Address not mapped to object] []
    Incident details in: /u01/app/oracle/diag/rdbms/<sid>/<sid>/incident/incdir_631460/<sid>pr0028085_i631460.trc
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    ORA-07445: exception encountered: core dump [kdr9ir2rst0()+326] [SIGSEGV] [ADDR:0x7FFFD2F18FF8] [PC:0x60197E0] [Address not mapped to object] []
    Based on the error log it seems we are hitting some bug from metalink (document id 460169.1 and 882851.1)
    my question is, the datafile # is given, block# is known too and the data object is also identified. I just verified that object is not that important, is there a way to set the block# to corrupted to be able the recovery to continue? Then I will just drop the table from production so that will also happen in standby, and the block corrupted will be gone too. Is this feasible?
    If its not, can you suggest what's next I can do so the the physical standby will be able to sync again to prod aside from rebuilding the standby?
    Please take note that I also tried to dbv the file to confirm if there is marked as corrupted and the result for that datafile is also good:
    dbv file=/u02/oradata/<sid>/<datafile>_19.dbf logfile=dbv_file_36.log blocksize=16384
    oracle@<server>:[~] $ cat dbv_file_36.log
    DBVERIFY: Release 11.1.0.7.0 - Production on Sun Feb 13 04:35:28 2011
    Copyright (c) 1982, 2007, Oracle. All rights reserved.
    DBVERIFY - Verification starting : FILE = /u02/oradata/<sid>/<datafile>_19.dbf
    DBVERIFY - Verification complete
    Total Pages Examined : 3840000
    Total Pages Processed (Data) : 700644
    Total Pages Failing (Data) : 0
    Total Pages Processed (Index): 417545
    Total Pages Failing (Index): 0
    Total Pages Processed (Other): 88910
    Total Pages Processed (Seg) : 0
    Total Pages Failing (Seg) : 0
    Total Pages Empty : 2632901
    Total Pages Marked Corrupt : 0
    Total Pages Influx : 0
    Total Pages Encrypted : 0
    Highest block SCN : 3811184883 (1.3811184883)
    Any help is really appreciated. I hope to hear feedback from you.
    Thanks

    damorgan, i understand the opinion.
    just new with the organization and just inherit a data warehouse database without rman backup. I am still setting up the rman backup thats why i can't use rman to resolve the issue, the only i have is physical standby and its not a standby that automatically sync using dataguard or standard standby setup, i am just checking solution that is applicable in the current situation

  • Physical standby database standby redo log problem

    Hello
    We have a physical standby database , I've created some standby redo log files but my problem is that they aren't used,
    their status in v$stanby_log view is UNASSIGNED
    and I see this message (ORA-16086: standby database does not contain available standby log files) in primary database alert_log file
    while when I run "alter system switch logfile" in the primary database it transfer redo logs to the physsical standby database
    and archive log file will be created in standby database
    I've even recreated the standby redo log files and I added new ones to them but the problem wasn't solved
    Do you know what is problem ?
    elect group#,THREAD#,BYTES,STATUS from V$STANDBY_LOG;
    group#     THREAD#      BYTES       STATUS
    1                   0                   524288000                   UNASSIGNED                  
    2                   0                   524288000                   UNASSIGNED                  
    3                   0                   524288000                   UNASSIGNED                  
    8                   0                   524288000                   UNASSIGNED                  
    9                   0                   524288000                   UNASSIGNED                  
    10                   0                   524288000                   UNASSIGNED                  
    select group#,THREAD#,BYTES,MEMBERS,STATUS from v$log;
    group#                    THREAD#                    BYTES                    MEMBERS                    STATUS
    4                   1                   524288000                   2                   CLEARING                  
    7                   1                   524288000                   2                   CLEARING_CURRENT                  
    6                   1                   524288000                   2                   CLEARING                  
    5                   1                   524288000                   2                   CLEARING                  
    thanks

    Hello Anurag
    Thank you for your reply
    I have found some issue in the standby database alert_log too , in the standby database alert_log it has been written:
    RFS[782]: Assigned to RFS process 3919
    RFS[782]: Identified database type as 'physical standby'
    Primary database is in MAXIMUM AVAILABILITY mode
    Standby controlfile consistent with primary
    Primary database is in MAXIMUM AVAILABILITY mode
    Standby controlfile consistent with primary
    RFS[782]: No standby redo logfiles selected (reason:6)
    Sun Jan 31 13:59:43 2010
    Errors in file /u01/app/oracle/admin/tehrep/udump/tehrep_rfs_3919.trc:
    ORA-16086: standby database does not contain available standby log files
    Sun Jan 31 13:59:48 2010
    RFS[781]: Archived Log: '/disks/sda/tehrep/archivelogs/1_6516_670414641.dbf'
    Sun Jan 31 13:59:50 2010
    and the context "/u01/app/oracle/admin/tehrep/udump/tehrep_rfs_3919.trc"  is below :
    +/u01/app/oracle/admin/tehrep/udump/tehrep_rfs_3919.trc+
    Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
    With the Partitioning, OLAP and Data Mining options
    ORACLE_HOME = /u01/app/oracle/product/10.2.0/db_1
    System name:    Linux
    Node name:      linserver2.com
    Release:        2.6.9-42.ELsmp
    Version:        #1 SMP Wed Jul 12 23:27:17 EDT 2006
    Machine:        i686
    Instance name: tehrep
    Redo thread mounted by this instance: 1
    Oracle process number: 58
    Unix process pid: 3919, image: [email protected]
    *** SERVICE NAME:() 2010-01-31 13:59:43.865
    *** SESSION ID:(109.1225) 2010-01-31 13:59:43.865
    KCRRFLAS
    KCRRSNPS
    No space in recovery area for active standby redo logs
    The primary database is operating in MAXIMUM PROTECTION
    or MAXIMUM AVAILABILITY mode, and the standby database
    does not contain adequate disk space in the recovery area
    to safely archive the contents of the standby redo logfiles.
    ORA-16086: standby database does not contain available standby log files
    when I saw this line "No space in recovery area for active standby redo logs" I thought that STANDBY_ARCHIVE_DEST parameter points where that there is no enough space , but when I consider I found out that points a directory on disk a "sda" that has enough space , I don't know what that means
    by the way, at below I've written a section of the primary database alert_log context and "lgwr" trace file around Sun Jan 31 13:30:34 2010
    alert_log :
    ORA-16086: standby database does not contain available standby log files
    Sun Jan 31 13:30:34 2010
    LGWR: Failed to archive log 7 thread 1 sequence 6512 (16086)
    Thread 1 advanced to log sequence 6512
    Current log# 7 seq# 6512 mem# 0: /disks/sdb/tehrep/redo71.log
    Current log# 7 seq# 6512 mem# 1: /disks/sdd/tehrep/redo72.log
    LNSc started with pid=53, OS id=11451
    Sun Jan 31 13:36:34 2010
    Errors in file /u01/app/oracle/admin/tehrep/bdump/tehrep_lgwr_3692.trc:
    ORA-16086: standby database does not contain available standby log files
    Sun Jan 31 13:36:34 2010
    LGWR: Failed to archive log 5 thread 1 sequence 6513 (16086)
    Thread 1 advanced to log sequence 6513
    Current log# 5 seq# 6513 mem# 0: /disks/sdb/tehrep/redo51.log
    Current log# 5 seq# 6513 mem# 1: /disks/sdd/tehrep/redo52.log
    */u01/app/oracle/admin/tehrep/bdump/tehrep_lgwr_3692.trc file :*
    Error 16086 creating standby archive log file at host '(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=tcp)(HOST=linserver2.com
    +)(PORT=1521)))(CONNECT_DATA=(SERVICE_NAME=tehrep_XPT.com)(INSTANCE_NAME=tehrep)(SERVER=dedicated)))'+
    *** 2010-01-31 13:30:34.712 60679 kcrr.c
    LGWR: Attempting destination LOG_ARCHIVE_DEST_3 network reconnect (16086)
    *** 2010-01-31 13:30:34.712 60679 kcrr.c
    LGWR: Destination LOG_ARCHIVE_DEST_3 network reconnect abandoned
    ORA-16086: standby database does not contain available standby log files
    *** 2010-01-31 13:30:34.712 60679 kcrr.c
    LGWR: Error 16086 creating archivelog file '(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=tcp)(HOST=linserver2.com)(PORT=1521
    +)))(CONNECT_DATA=(SERVICE_NAME=tehrep_XPT.com)(INSTANCE_NAME=tehrep)(SERVER=dedicated)))'+
    *** 2010-01-31 13:30:34.712 58941 kcrr.c
    kcrrfail: dest:3 err:16086 force:0 blast:1
    Receiving message from LNSc
    *** 2010-01-31 13:30:34.718 55444 kcrr.c
    Making upidhs request to LNSc (ocis 0x0xb648db48). Begin time is <01/31/2010 13:30:30> and NET_TIMEOUT <180> seconds
    NetServer pid:11196
    *** 2010-01-31 13:30:38.718 55616 kcrr.c
    upidhs done status 0
    *** 2010-01-31 13:36:31.062
    LGWR: Archivelog for thread 1 sequence 6513 will NOT be compressed
    *** 2010-01-31 13:36:31.062 53681 kcrr.c
    +Initializing NetServer[LNSc] for dest=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=tcp)(HOST=linserver2.com)(PORT=1521)))(CO+
    NNECT_DATA=(SERVICE_NAME=tehrep_XPT.com)(INSTANCE_NAME=tehrep)(SERVER=dedicated))) mode SYNC
    LNSc is not running anymore.
    New SYNC LNSc needs to be started
    Waiting for subscriber count on LGWR-LNSc channel to go to zero
    Subscriber count went to zero - time now is <01/31/2010 13:36:31>
    Starting LNSc ...
    Waiting for LNSc to initialize itself
    *** 2010-01-31 13:36:34.116 53972 kcrr.c
    +Netserver LNSc [pid 11451] for mode SYNC has been initialized+
    Performing a channel reset to ignore previous responses
    +Successfully started LNSc [pid 11451] for dest (DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=tcp)(HOST=linserver2.com)(PORT=1+
    +521)))(CONNECT_DATA=(SERVICE_NAME=tehrep_XPT.com)(INSTANCE_NAME=tehrep)(SERVER=dedicated))) mode SYNC ocis=0x0xb648db48+
    *** 2010-01-31 13:36:34.116 54475 kcrr.c
    +Making upiahm request to LNSc [pid 11451]: Begin Time is <01/31/2010 13:36:31>. NET_TIMEOUT = <180> seconds+
    Waiting for LNSc to respond to upiahm
    *** 2010-01-31 13:36:34.266 54639 kcrr.c
    upiahm connect done status is 0
    Receiving message from LNSc
    Receiving message from LNSc
    Destination LOG_ARCHIVE_DEST_3 is in STANDBY RESYNCHRONIZATION mode
    Receiving message from LNSc

  • How to change the database character set on physical standby database?

    Hi,
    We have a database with character set WE8ISO8859P1 and migrated the character set to WE8MSWIN1252 using csscan/csalter scripts. This database has a physical standby database setup also and after the migration, the physical standby database is still showing the character set as WE8ISO8859P1. How can I change the characterset on the physical standby? I raised a Service Request with Oracle, and they said that recreating the standby database is the only supported way of changing the char set on the standby database. Is this true?
    Thanks,
    Sreekanth

    Thank you, Robert, for your reply.
    The standby is in sync with the primary.
    see below
    SYS@sisprod>select * from v$dataguard_stats;
    NAME VALUE UNIT TIME_COMPUTED
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    I am selecting from v$nls_parameters;
    I don't know how to restore the controlfile from primary. Could you please tell me how to do it?
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  • Configuring a physical standby database in 9i

    Hi all,
       SO: Solaris 10 SPARC x64
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       I have a task of creating a physical standby database in a solaris 10 - Oracle 9.2.0.6 env. I am used to do this configuration on the 11.2 version of Oracle, and because of that i have some doubts regarding the possible different configurations necessary to do in a 9i Database.
       1) The main doubt that i have is regarding the RMAN use. I Would like to know if it is possible to restore a normal backup of my primary database into the standby database, and after that, apply the necessary archived logs to sync the standby with the primary? The controlfile that i would use would be the one created by the  "BACKUP CURRENT CONTROLFILE FOR STANDBY" RMAN command. The RMAN script woulb be like the one below:
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    allocate channel ch02 device type disk;
    allocate channel ch03 device type disk;
    allocate channel ch04 device type disk;
    restore controlfile from 'standby_controlfile.ctl';
    sql 'alter database mount';
    restore database;
    recover database;
       2) The directory structure will be the same, so i think it is not necessary to use the SET NEWNAME and the DB_FILE_NAME_CONVERT/LOG_FILE_NAME_CONVERT, is that correct?
       3) Do you have any other considerations regarting the differences between a 9i and a 11g Physical Standby Configuration?
    Thanks for your attention and pacience.

    Hello;
    On question 1 - See this:
    http://docs.oracle.com/cd/B10500_01/server.920/a96566/rcmstand.htm
    On question 2 - Assuming RMAN work then DB_FILE_NAME_CONVERT/LOG_FILE_NAME_CONVERT would NOT have to be set for the same directory structure.
    On question 3 - double check this:
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    Best Regards
    mseberg

  • Physical standby database fail-over

    Hi,
    I am working on Oracle 10.2.0.3 on Solaris SPARC 64-bit.
    I have a Dataguard configuration with a single Physical standby database that uses real time application. We had a major application upgrade yesterday and before the start of upgrade, we cancelled the media recovery and disabled the log_archive_dest_n so that it doesn't ship the archive logs to standby site. We left the dataguard configuration in this mode incase of a rollback.
    Primary:
    alter system set log_archive_dest_state_2='DEFER';
    alter system switch logfile;
    Standby:
    alter database recover managed standby database cancel;Due to application upgrade induced problems we had to failover to the physical standby, which was not in sync with primary from yesterday. I used the following method to fail-over since i do not want to apply any redo from yesterday.
    Standby:
    alter database activate physical standby database;
    alter database open;
    shutdown immediate;
    startupSo, after this step, the database was a stand alone database, which doesn't have any standby databases yet (but it still has log_archive_config parameter set and log_archive_dest_n parameters set but i have 'DEFER' the log_archive_dest_n pointing to the old primary). I have even changed the "archive log deletion policy to NONE"
    RMAN> configure archivelog deletion policy to none;After the fail-over was completed, the log sequence started from Sequence 1. We cleared the FRA to make space for the new archive logs and started off a FULL database backup (backup incremental level 0 database plus archivelog delete input). The backup succeded but we got these alerts in the backup log that RMAN cannot delete the archivelogs.
    RMAN-08137: WARNING: archive log not deleted as it is still neededMy question here is
    1) Even though i have disabled the log_archive_dest_n parameters, why is RMAN not able to delete the archivelogs after backup when there is no standby database for this failed-over database?
    2) Are all the old backups marked unusable after a fail-over is performed?
    FYI... flashback database was not used in this case as it did not server our purpose.
    Any information or documentation links would be greatly appreciated.
    Thanks,
    Harris.

    Thanks for the reply.
    The FINISH FORCE works in some cases but if there is an archive gap (though it didn't report in our case), it might not work some times (DOCID: 846087.1). So, we followed the Switch-over & Fail-Over best practices where it mentioned about this "ACTIVE PHYSICAL STANDBY" for a fail-over if you intend not to apply any archivelogs. The process we followed is the Right one.
    Anyhow, we got the issue resolved. Below is the resolution path.
    1) Even though if you DEFER the LOG_ARCHIVE_DEST_STATE_N parameter's on the primary, there are some situations where the Primary database in a dataguard configuration where it will not delete the archive logs due to some SCN issues. This issue may or may not arise in all fail-over scenarios. If it does, then do the following checks
    Follow DOCID: 803635.1, which talks about a PLSQL procedure to check for problematic SCN's in a dataguard configuration even though the physical standby databases are no available (i.e., if the dataguard parameters are set, log_archive_config, log_archive_dest_n='SERVICE=..." still set and even though corresponding LOG_ARCHIVE_DEST_STATE_N parameters are DEFERRED).
    If this procedure returns any rows, then the primary database is not able to delete the archivelogs because it is still thinking there is a standby database and trying to save the archive logs because of the SCN conflict.
    So, the best thing to do is, remove the DG related parameters from the spfile (log_archive_config, log_archive_dest_n parameters).
    After i made these changes, i ran a test backup using "backup archivelog all delete input", the archive logs got deleted after backup without any issues.
    Thanks,
    Harris.
    Edited by: user11971589 on Nov 18, 2010 2:55 PM

  • Physical Standby Database (Protection Mode)?!!

    Hi,
    I have configured a physical standby database to use Real-time Apply, but i noticed that the protection mode of the database has been changed from "Maximum Performance" to ''Maximum Availability"..
    log_archive_dest_3='service=phystby OPTIONAL LGWR SYNC AFFIRM reopen=120 valid_for=(online_logfiles,primary_role) db_unique_name=phystby'
    Any body to explaine??
    Regards,

    LGWR SYNC AFFIRM
    These are the options are used in maximum protection  mode ,in which oracle will write the information in both the server(primary and standby) and this write occurs at same time.
    oracle write the information in online redo logfile of both the server simultaneously.
    and this option ensure no data loss will occurs if primary will fail.
    SYNC related with Network transmission mode.
    AFFIRM related with disk write option.
    LGWR describe Redo archival process.
    Thanks
    Kuljeet                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           

  • Appying patches when Physical standby in place.

    Kindly suggest steps for patch application /application upgradation. We dont have any replication tool.What is the standard process to sync standby after patch upgradation . Is there any alternative of rsync/rdist utility.
    Is it possible that after applying patch in Primary, On Standby we have to apply as it is, with no Database inclusion as the standby database will be in mount state and will not available for making database changes.
    How to find which files to be copied manually to sync the standby with Primary. Will this method reliable?
    Apologies to ask many questions but i found no single document covering this detailed process.

    Both the links are for applying patches/upgrades for Oracle Database. Apologies i didn't clarify the requirement. It's for EBS R12. So i need to sync the apps tier with primary when physical standby in place.
    Kindly validate below procedure with rsync utility
    After running the Middle Tier and Database Pre-clone.
    To synchronize Synchronize the Appropriate File Systems to Standby,
    rsync –av <$APPL_TOP> <standby_host>:<$APPL_TOP>
    --rsync-path=/usr/local/bin/rsync
    /usr/local/bin/rsync –av <$COMMON_TOP> <standby_host>:<$COMMON_TOP>
    /usr/local/bin/rsync –av <$ web ORACLE HOMEs (10.1.2)> <standby_host>:<$ web ORACLE HOMEs (10.1.2)>
    /usr/local/bin/rsync –av <$TOOL(10.1.3)> <standby_host>:<$COMMON_TOP>
    Synchronize the database tier file system including <RDBMS ORACLE_HOME>/appsutil directory.
    /usr/local/bin/rsync –av <RDBMS ORACLE_HOME>/appsutil <standby_host>:<RDBMS ORACLE_HOME>/appsutil
    Reconfigure the Standby Middle Tier File Systems
    When the file system synchronization is complete, reconfigure the standby file systems. Log onto each of the standby middle tier systems as the APPLMGR user and execute the following commands:
    cd <COMMON_TOP>/clone/bin
    perl adcfgclone.pl atTechStack <INST_TOP>/appl/admin/<Standby CONTEXT_NAME>.xml
    To complete the configuration of environment run AutoConfig using the following commands:
    cd <APPL_TOP>/ad/12.0.0/bin
    adconfig.sh contextfile=<INST_TOP>/appl/admin/<standby context>.xml run=INSTE8
    AutoConfig will report errors regarding to database connection, these errors can be ignored as the database is unavailable.
    Step 4.4.11 - Reconfigure the Standby Database File Systems
    If you had to synchronize the apps utilities on the database server in the prior step, you should also reconfigure the database server. As the ORACLE user on each database node of standby database tier, first stop the listener if it is running, then execute the following commands:
    cd <RDBMS ORACLE_HOME>/appsutil/clone/bin
    perl adcfgclone.pl dbTechStack <RDBMS ORACLE_HOME>/appsutil/<Standby CONTEXT_NAME>.xml

  • Redologs in physical standby database

    The MRP process is started and the standby database is physical standby, which is running under managed standby. My Question is as below
    1. Under managed recovery mode do we require the redo logs created on the physical standby database.
    2. How does oracle keep the database in sync when there are no redo logs are created on the standby database.

    The output is as below
    SQL> select status, pid, sequence# from v$managed_standby where process like 'MRP%';
    STATUS PID SEQUENCE#
    WAIT_FOR_GAP 29710 88576
    SQL>
    The contents of alertlog ; i Just restarted the managed recovery to capture the information
    RFS[1]: Archived Log: '/u02/archive/1_88817_665420030.dbf'
    Sun Apr 18 18:34:26 2010
    RFS[2]: No standby redo logfiles created
    RFS[2]: Archived Log: '/u02/archive/1_88818_665420030.dbf'
    Sun Apr 18 18:44:26 2010
    RFS[3]: No standby redo logfiles created
    RFS[3]: Archived Log: '/u02/archive/1_88819_665420030.dbf'
    Sun Apr 18 18:54:26 2010
    RFS[4]: No standby redo logfiles created
    RFS[4]: Archived Log: '/u02/archive/1_88820_665420030.dbf'
    Sun Apr 18 18:56:32 2010
    alter database recover managed standby database cancel
    Sun Apr 18 18:56:50 2010
    MRP0: Background Media Recovery cancelled with status 16037
    Sun Apr 18 18:56:50 2010
    Errors in file /opt/home/oracle/admin/rmdp3/bdump/rmdp3_mrp0_29710.trc:
    ORA-16037: user requested cancel of managed recovery operation
    Recovery interrupted!
    Sun Apr 18 18:56:51 2010
    Waiting for MRP0 pid 29710 to terminate
    Sun Apr 18 18:56:51 2010
    Errors in file /opt/home/oracle/admin/rmdp3/bdump/rmdp3_mrp0_29710.trc:
    ORA-16037: user requested cancel of managed recovery operation
    Sun Apr 18 18:56:51 2010
    MRP0: Background Media Recovery process shutdown (rmdp3)
    Sun Apr 18 18:56:52 2010
    Managed Standby Recovery Canceled (rmdp3)
    Completed: alter database recover managed standby database cancel
    Sun Apr 18 18:57:19 2010
    alter database recover managed standby database disconnect
    from session
    Sun Apr 18 18:57:19 2010
    Attempt to start background Managed Standby Recovery process (rmdp3)
    MRP0 started with pid=19, OS id=2123
    Sun Apr 18 18:57:19 2010
    MRP0: Background Managed Standby Recovery process started (rmdp3)
    Managed Standby Recovery not using Real Time Apply
    Sun Apr 18 18:57:24 2010
    Errors in file /opt/home/oracle/admin/rmdp3/bdump/rmdp3_mrp0_2123.trc:
    ORA-00313: open failed for members of log group 1 of thread 1
    ORA-00312: online log 1 thread 1: '/u03/redologs/rmdp3/redo01.log'
    ORA-27037: unable to obtain file status
    SVR4 Error: 2: No such file or directory
    Additional information: 3
    Sun Apr 18 18:57:24 2010
    Errors in file /opt/home/oracle/admin/rmdp3/bdump/rmdp3_mrp0_2123.trc:
    ORA-00313: open failed for members of log group 1 of thread 1
    ORA-00312: online log 1 thread 1: '/u03/redologs/rmdp3/redo01.log'
    ORA-27037: unable to obtain file status
    SVR4 Error: 2: No such file or directory
    Additional information: 3
    Clearing online redo logfile 1 /u03/redologs/rmdp3/redo01.log
    Clearing online log 1 of thread 1 sequence number 88818
    Sun Apr 18 18:57:24 2010
    Errors in file /opt/home/oracle/admin/rmdp3/bdump/rmdp3_mrp0_2123.trc:
    ORA-00313: open failed for members of log group 1 of thread 1
    ORA-00312: online log 1 thread 1: '/u03/redologs/rmdp3/redo01.log'
    ORA-27037: unable to obtain file status
    SVR4 Error: 2: No such file or directory
    Additional information: 3
    Sun Apr 18 18:57:24 2010
    Errors in file /opt/home/oracle/admin/rmdp3/bdump/rmdp3_mrp0_2123.trc:
    ORA-19527: physical standby redo log must be renamed
    ORA-00312: online log 1 thread 1: '/u03/redologs/rmdp3/redo01.log'
    Clearing online redo logfile 1 complete
    Media Recovery Waiting for thread 1 sequence 88576
    Fetching gap sequence in thread 1, gap sequence 88576-88675
    FAL[client]: Error fetching gap sequence, no FAL server specified
    Sun Apr 18 18:57:25 2010
    Completed: alter database recover managed standby database disconnect
    from session
    Sun Apr 18 18:57:54 2010
    FAL[client]: Failed to request gap sequence
    GAP - thread 1 sequence 88576-88675
    DBID 440735188 branch 665420030
    FAL[client]: All defined FAL servers have been attempted.
    Check that the CONTROL_FILE_RECORD_KEEP_TIME initialization
    parameter is defined to a value that is sufficiently large
    enough to maintain adequate log switch information to resolve
    archivelog gaps.
    Edited by: user11982297 on Apr 18, 2010 10:58 AM

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