Data Guard :: Last Archived Logs Information

Aug 5, 2011

Is there any way to find out the last archived file's:

A) sequence no
B) Date and time
C) As well as the log group name.

I have 4 Log group.

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Data Guard :: Archived Logs Not Applied On Standby But Looks Ok

Jan 11, 2012

I got a database on dataguard and my primary (db1) is shipping files to my standby (db2) with no problems.However, when I query:

select sequence#, status, applied from v$archived_log;

I see this:
SEQUENCE# S APP
---------- - ---
4 A YES
5 A YES
6 A YES
7 A YES
8 A YES
9 A YES
10 A YES
11 A YES
12 A YES
13 A YES
14 A YES
[code]....

So I did an alter system switch logfile on db1 then looked again and I can see new archived logs being applied.I thought all archived logs had to be applied on the standby since this is the very foundation of the standby database.Am I going to run in trouble later if I have a failover (unsynchronized database)

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Data Guard :: GAP Archived Log Transport To Database

May 26, 2012

The GAP archived log can not transport to target database by auto, how can i do?

Sun May 27 06:32:59 2012
FAL[client]: Failed to request gap sequence
GAP - thread 1 sequence 161-161
DBID 1820932955 branch 775456988
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.

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Data Guard :: Copying Archived Log File From Primary To DR

Sep 21, 2011

1) How to copy the ARCHIVED LOG FILE from Primary to DR location. Where if the DR is having the file already, how to SKIP that Particular Archived log file?
2) I have Checked with the FILE_TRANSFER DBMS package, but it gives the error if any file existing already.

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Data Guard :: Finding Unapplied Archived Log File In DR?

Sep 21, 2011

I wanted to make a script for applying the Archived log File in to DR by certain interval.

1) I will use the below view for finding the SEQUENCE so far applied.select sequence# from v$log_archive.
2) But how i can compare with the archive log files available in physical location with the above mentioned view.

eg:- the above view shows, the till the sequence 46789 is applied.And in the DR physical Location available sequences are 46795. which means 6 more archived log files are more, which are not applied into the DR so far.

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Data Guard :: Transfer Archived Log Files To Standby Database

Oct 8, 2011

1> Does dataguard in 10g use ftp/rsh to transfer archived log files to standby database or some other protocol?

2> In my primary database, archives are getting generated normally, there is no error in alert log file. But archives are not getting transferred to standby database. I am able to connect through sys user from primary server to standby database & vice versa.

Also, tnsping is working fine.

All was working fine till 2 days back & no parameter has been changed from database side. I am not able to transfer the file manually through FTP to standby server. Does it is the problem? Or dataguard doesnt use FTP protocol to transfer the files?

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Data Guard :: CLEARING Status For Logs?

Oct 25, 2011

I'm using oracle 10.2.0.3. on windows 2003. I've implemented physical stanby and it was working fine until last week. No problem on primary DB. Archived logs are sent normally to standby. And standby DB is also able to apply the archived logs coming from primary. I've already check data on standby DB after opening it with READ ONLY option : data are exported normally and I can read them.

The issue is the status of logs in view v$log on standby database.

select group#,status from v$log;
group# status
1 clearing_current
2 clearing
3 clearing

I've tried this :

On standby DB :

SQL> RECOVER MANAGED STANDBY DATABASE CANCEL;
Media recovery complete.
SQL> alter database open read only;

complete.
SQL> alter database clear logfile group 1;
Database altered.
SQL> alter database clear logfile group 2;
Database altered.
SQL> alter database clear logfile group 3;
Database altered.

SQL> select * from v$log;
GROUP# THREAD# SEQUENCE# BYTES MEMBERS ARC STATUS
---------- ---------- ---------- ---------- ---------- --- ----------------
FIRST_CHANGE# FIRST_TIM
------------- ---------
1 1 0 5242880 1 YES CURRENT
1096021 25-OCT-11
2 1 0 5242880 1 YES UNUSED
1087538 25-OCT-11
3 1 0 5242880 1 YES UNUSED
1091468 25-OCT-11

I go back into recovery mode and my status says clearing_current.

SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT FROM SESSION;
Database altered.
SQL> select * from v$log;
GROUP# THREAD# SEQUENCE# BYTES MEMBERS ARC STATUS
---------- ---------- ---------- ---------- ---------- --- ----------------
FIRST_CHANGE# FIRST_TIM
------------- ---------
1 1 517 5242880 1 YES CLEARING_CURRENT
1096021 25-OCT-11
3 1 0 5242880 1 YES UNUSED
1091468 25-OCT-11
2 1 0 5242880 1 YES UNUSED
1087538 25-OCT-11

I know that the good status is ACTIVE or CURRENT or INACTIVE...

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Data Guard :: Deleting Logs In Standby

Jan 27, 2011

I've a primary database and a physical standby.Logs are shipping perfectly from primary to standby.The logs that are applied on the standby are getting stored in a mount point(LINUX-/opt2) which consumes more space(160 GB). Will that be right if I go ahead and delete them?

My rman configurations in primary is:

RMAN> show all;

using target database control file instead of recovery catalog

RMAN configuration parameters are:

CONFIGURE RETENTION POLICY TO REDUNDANCY 4;
CONFIGURE BACKUP OPTIMIZATION OFF; # default
CONFIGURE DEFAULT DEVICE TYPE TO DISK; # default
CONFIGURE CONTROLFILE AUTOBACKUP ON;

[Code]....

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RMAN Backup Without Archived Logs?

Jul 28, 2013

Assuming you have a 9i database . where you have it enabled in archive mode , yet constantly deleting the archived redo logs , due to space constraints .

Will you be able to perform a full level 0 backup , and the following incremental backups , in the absence of the archived redo logs ? And are these incremental backups enough to recover the database or particular data files , to the point of the backup itself at least ?

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Cleanup Of Applied Archived Logs?

Jan 8, 2013

Is there a way to automate deletion of applied archived logs after rollforward?

I'm thinking of crontab, and a script referring to the alert log to get the archived log filename.

Setup:

OS: HP-UX B.11.31 you ia64
DB: Oracle 10g 10.2.0.4.0 (mounted)

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Data Guard :: App Archive Logs Which Come From Primary Database?

Feb 16, 2012

If my standby database is read only mode,does it can app the archive logs which come from primary database?

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Data Guard :: Logs Are Not Getting Applied In Standby Database

Sep 5, 2012

I have created a physical standby database and in it the logs are not getting applied.following is an extract of the standby alert log

Wed Sep 05 07:53:59 2012
Media Recovery Log /u01/oracle/oradata/ABC/archives/1_37638_765704228.arc
Error opening /u01/oracle/oradata/ABC/archives/1_37638_765704228.arc
Attempting refetch
Media Recovery Waiting for thread 1 sequence 37638
Fetching gap sequence in thread 1, gap sequence 37638-37643
Wed Sep 05 07:53:59 2012
RFS[46]: Assigned to RFS process 3081
RFS[46]: Allowing overwrite of partial archivelog for thread 1 sequence 37638
RFS[46]: Opened log for thread 1 sequence *37638* dbid 1723205832 branch 765704228
Wed Sep 05 07:55:34 2012
RFS[42]: Possible network disconnect with primary database

However, the archived files are getting copied to the standby server.I tried registering and recovering the logs but it also failed..Follows some of the information,

Primary
Oralce 11R2 EE
SQL> select max(sequence#) from v$log where archived='YES';
MAX(SEQUENCE#)
--------------
37668
[code]...

troubleshoot this and get the standby in sync.

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Data Guard :: Redo Archive Logs Missing

Apr 23, 2013

While Configuring Data Guard for ORacle 10g (10.2.0.4) 64 bits on Windows 2007 Server 64 bits.I got few questions

1. What is the Default mode of Standby Database?

2. Should we Always Start Physical Standby Database to Recover Missing Redo Archive Log?

SQL> startup mount;
ORACLE instance started.

Total System Global Area 591396864 bytes
Fixed Size 2067496 bytes
Variable Size 163578840 bytes
Database Buffers 419430400 bytes
Redo Buffers 6320128 bytes
Database mounted.

SQL> alter database recover managed standby database disconnect from session;
Database altered.

3. When there are missing Redo Log Archives e.g.

----On Standby Database--------

SQL> SELECT RESETLOGS_ID,SEQUENCE#,STATUS,ARCHIVED FROM V$ARCHIVED_LOG
2 ORDER BY RESETLOGS_ID,SEQUENCE#;

RESETLOGS_ID SEQUENCE# S ARC
------------ ---------- - ---
812980008 15 A YES
812980008 16 A YES
812980008 17 A YES
812980008 18 A YES
[code]....

65 rows selected. Log 8, 9, 10, 11, 12, 13, 14, 15 are missing.

How to Apply / Recover These Logs on Standby Database?

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Data Guard :: Archive Logs Are Being Shipped But Not Applied

Jun 27, 2013

Currently I am at the point where the configuration has been completed, and I just need to sync the standby database to the primary one. I can see in the log files that the archive logs are being shipped, but they are not applied on the standby system. 

If I run "recover standby database;" manually in sqlplus I can see that it is trying to apply an archive log which is way too old (ORA-00279: change 9656498443 generated at 04/29/2008 08:45:08 needed for thread 1). I

n the alert log I can also see this error: Warning: Recovery target destination is in a sibling branch of the controlfile checkpoint. Recovery will only recover changes to datafiles. 

At this point I was thinking that the standby database might be on a different incarnation compared to the primary, but this is not the case, they are both in incarnation 6:6  6  MVF  4023175798 CURRENT 48493546257 13-06-21 

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How To Back Up Database Call Without Archived Logs

May 11, 2011

here i have an question with oracle database backup strategy.my question is

how to backup my oracle database call DB11G without archived logs while the database is open for user activity and also this should be the base for an incremental backup strategy?

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Backup Entire Database Without Archived Logs?

May 13, 2011

Backup your entire database, without archived logs, while the database is open for user activity. This backup should be the base for an incremental backup strategy

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Sparing Archived Redo Logs From Retention Policy?

Oct 4, 2010

I'm running Oracle 9i on AIX 5.2. I'm not using a recovery catalog, nor am I using media management software. I perform a full, online rman backup of the database and archived redo logs daily to disk, then use operating system commands to copy the backup to tape. There is only space on disk for two days' backups, so I need to have a retention policy of "redundancy = 1", and run a "delete obsolete" prior to the backup. The problem is that I don't want to subject the archived redo logs to this retention policy.

I have two physical standby databases connected by WAN to the primary site, and I might need archived redo logs that are a few days (or more) old in the event of a prolonged WAN outage. I've read about the "keep forever" option, but apparently it isn't available without using a recovery catalog. Is there any way to spare the archived redo logs from my retention policy?

Note: I want to "protect" the actual archived redo logs from the retention policy, not the backups of the archived redo logs.

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RMAN :: Does Cold Backup Must Have Archived Redo Logs

Jul 25, 2012

URL....I'm practicing for the OCP test and one of the questions is that there is a backup from yesterday and the last archived logs are from the day before yesterday not mentioned if it's cold or hot backup.

If its a cold backup - cant we recover it? is it a must to have the archived redo logs also when recovering a cold backup? That sounds not logical since those logs are made only for a hot backup. URL.....

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Data Guard :: Logs Get Shipped But Not Applied - Due To Primary Database Reset

Jul 22, 2013

I have a Sap Primry Database and also a standby db that was working perfectly.. We migrated the primary db from windows 2003 to windows 2008 and brought the primary db up.. I had to create a controlfile and do a system copy and had to reset the logs on the Primary.. All came up and when i checked the standby it was receiving the logs but after a month. i see that it was not applying the logs as I think because of the sequence number .. it stopped.

I did the ffg as per the attachement...My logs have been shipped across but not applied, But What worrries me is the log sequence number on my Primary

SQL> select max(sequence#),thread# from gv$archived_log group by thread#;

MAX(SEQUENCE#) THREAD#
-------------- ----------
27727 1

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Backup & Recovery :: Backup Entire Database / Without Archived Logs

May 13, 2011

Backup entire database, without archived logs, while the database is open for user activity and also This backup should be the base for an incremental backup strategy.

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Data Guard :: Rolling Upgrade Physical Data Guard

Jul 5, 2011

We have physical data guard configured version (10.2.0.4). We are in need to upgrade primary & standby database to 11G R2. Can we perform rolling upgrade.

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Data Guard :: How To Know Current Active Guard Settings In Standby Database

Oct 17, 2012

Controlling User Access to Tables in a Logical Standby Database can be controlled using the following command:

ALTER DATABASE GUARD STANDBY;

My simple question is: how can I know the current active Guard setting in the standby database?

Oracle 11g R2.

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Data Guard :: Unable To Get Data Of Primary In Standby Database (dataguard)

Jan 16, 2013

i have configured physical standby in my local system, to check logshipping i created a table at primary db, wen i tried to check in standby, it says table does not exist..below are primary & standby alert entries..

Primary alert log

Fatal NI connect error 12514, connecting to:
(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=172.16.0.98)(PORT=1522))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=STAND)(SERVER=dedicat ed)(CID=(PROGRAM=d:oracle11gappadministratorproduct11.1.0db_1inORACLE.EXE)(HOST=A960M)(USER=SYSTEM))(SERVER=dedicated)))
VERSION INFORMATION:
TNS for 64-bit Windows: Version 11.1.0.6.0 - Production

[code]....

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Data Guard :: Changing Dbname / Sid / Data / Control File Locations?

Nov 5, 2010

I want to change dbname,sid,data/control file locations in operational dataguard setup i plan to follow as below

1)shutdown primary and standby (stop managed recovery)

2)change db name in init.ora of primary and standby change database name control file location

3)create control file for primary from trace(script) make changes for db name and file locations

4)mount and open primary database

5)create standby control file

6) transfer standby control file to standby

7) mount stand by database and start manage recovery

If this steps will error free do i need to follow any thing additional to this or what is other best way for this or its not possible at all

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Data Guard :: Buffer Busy Waits On UNDO Data In Active DG

Feb 24, 2013

Oracle Version: 11.1.0.7.0
Active Dataguard

Statspack has been configured for Active Dataguard on Primary database.We got an spike of Buffer busy waits for about 5 min in Active Dataguard, this was causing worse Application SQL's response time during this 5 min window.Below is what i got from statspack report for one hour

Snapshot       Snap Id     Snap Time      Sessions Curs/Sess Comment
~~~~~~~~    ---------- ------------------ -------- --------- -------------------
Begin Snap:      18611 21-Feb-13 22:00:02      236       2.2
  End Snap:      18613 21-Feb-13 23:00:02      237       2.1
   Elapsed:               60.00 (mins)
[code]...

Why there could sudden spike of demand on UNDO data in Active Data Guard ?

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Data Guard :: DATA FILES IN Storage Area Network (SAN)

Mar 29, 2011

I am working in a bank as an system consultant, i have a SAN Storage Area and oracle as below.

SAN 1

This interface includes the DATA FILES of the oracle tablespace

SAN 2

SAN1 Mirrors the DATA FILES of the oracle tablespace to SAN 2

1. Can i rely on real time data recovery from SAN2 ?
2. if SAN1 (Data Files are currupted) will the SAN2 Data Files will be currupted as well.
3. If the SAN2 is currupted then what Oracle Features can be used to have uncurrupted data.

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Data Guard :: ORA-01157 / Cannot Identify / Lock Data File 1

Jul 23, 2010

i did everything writen but when i do *SQL>alter database recover managed standby database disconnect from session;*

i go and look in the standby database AlertLog file ,and thats whats writen

*ORA-01157: cannot identify/lock data file 1 - see DBWR trace file
ORA-01110: data file 1: 'F:ORACLEPRODUCT10.2.0ORADATADBSYSTEM01.DBF'
ORA-27041: unable to open file
OSD-04002: غير قادر على فتح الملف
O/S-Error: (OS 3) The system cannot find the path specified.

[code]....

strange thing that it realises the primary database in drive F and it goes to it but i dont understand what could be the reason of this ,although im doing this command while primary database is shutdown!

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Data Guard :: ORA-01354 / Supplemental Log Data Must Be Added To Run This Command

May 2, 2012

I configure logical standby online .when I execute dbms_logstdby.buid,first

SQL> EXECUTE DBMS_LOGSTDBY.BUILD;

it was blcoked by other sesson,then i kill the holding session,but no work.then i cancel this step and execute it again . the error is

SQL> EXECUTE DBMS_LOGSTDBY.BUILD;
BEGIN DBMS_LOGSTDBY.BUILD; END;
*
ERROR at line 1:
ORA-01354: Supplemental log data must be added to run this command
ORA-06512: at "SYS.DBMS_LOGMNR_INTERNAL", line 3669
ORA-06512: at "SYS.DBMS_LOGMNR_INTERNAL", line 3755
ORA-06512: at "SYS.DBMS_LOGMNR_D", line 12
ORA-06512: at line 1
ORA-06512: at "SYS.DBMS_INTERNAL_LOGSTDBY", line 370
ORA-06512: at "SYS.DBMS_LOGSTDBY", line 157

[code]....

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Data Guard :: Data Files Locations On Oracle 11gR2

Jun 15, 2012

I have set up a cross platform (Microsoft Windows IA (32-bit) -> Linux x86 64-bit) data guard and it worked fine.Then I did a switch over (which again worked) and found out the data is not getting replicated at all.. checked the data files available from the new primary database and found out they are in the windows format as below..

SQL> select name from v$datafile;

NAME
--------------------------------------------------------------------------------
D:ORACLEAPPADMINISTRATORORADATAMFSSYSTEM01.DBF
D:ORACLEAPPADMINISTRATORORADATAMFSSYSAUX01.DBF
D:ORACLEAPPADMINISTRATORORADATAMFSUNDOTBS01.DBF
D:ORACLEAPPADMINISTRATORORADATAMFSUSERS01.DBF
D:ORACLEAPPADMINISTRATORORADATAMFSRMANRMAN_TS01.DBF

and physically they were created at '/home/app/oracle/product/11.2.0/db_1/dbs/' and as

D:ORACLEAPPADMINISTRATORORADATAMFSREDO02.LOG
D:ORACLEAPPADMINISTRATORORADATAMFSREDO03.LOG
D:ORACLEAPPADMINISTRATORORADATAMFSRMANRMAN_TS01.DBF

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Data Guard :: Unable To Get Data Of Primary In Standby Database

Jan 16, 2013

I configured dataguard in my local system.

1) scn differs wrt primary in standby (i checked, 1day difference), how to make scn same?

2)i created a table in primary, its not refelecting in standby, (below i ve pasted alertlog entries)

ORA-27041: unable to open file
OSD-04002: unable to open file
O/S-Error: (OS 2) The system cannot find the file specified.
Errors in file d:oracle11gappadministratordiag
dbmsstandstand racestand_dbw0_6916.trc:
ORA-01157: cannot identify/lock data file 2 - see DBWR trace file
ORA-01110: data file 2: 'D:ORACLE11GAPPADMINISTRATORORADATASTANDSYSAUX01.DBF'

[code]....

3)wen i try to open standby database in read only mode gives below error..

ERROR at line 1:
ORA-16004: backup database requires recovery
ORA-01157: cannot identify/lock data file 1 - see DBWR trace file
ORA-01110: data file 1:
'D:ORACLE11GAPPADMINISTRATORORADATASTANDSYSTEM01.DBF'

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