Cannot Open Physical Standby Database Read Only?
Dec 7, 2010
Suddenly I can't open any of my physical standby databases read only. Alert log snippet and trace files follow post. I'm running 9.2.0.1.0 on all hosts, which are running AIX 5.2. I've successfully opened all physical standby databases read only numerous times in the past. Is it possible that these standby databases cannot be switched over to primary should the need arise?
Here's how I typically open a physical standby database read only:
alter database recover managed standby database cancel;
alter database open read only;
Errors in file /ora/product/9.2.0.1.0/rdbms/log/icps1_ora_27382.trc:
ORA-00604: error occurred at recursive SQL level 1
ORA-16000: database open for read-only access
Error 604 happened during db open, shutting down database
USER: terminating instance due to error 604
[code]...
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Dec 7, 2010
Suddenly I can't open any of my physical standby databases read only. Alert log snippet and trace files follow post. I'm running 9.2.0.1.0 on all hosts, which are running AIX 5.2. I've successfully opened all physical standby databases read only numerous times in the past. solve this? Is it possible that these standby databases cannot be switched over to primary should the need arise?
Here's how I typically open a physical standby database read only:
alter database recover managed standby database cancel;
alter database open read only;
Errors in file /ora/product/9.2.0.1.0/rdbms/log/icps1_ora_27382.trc:
ORA-00604: error occurred at recursive SQL level 1
ORA-16000: database open for read-only access
[code]...
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Feb 12, 2012
i, I've Two database one for primary(GISC) and one for standby (GISCST) when i start open standby database i appeare erro :
ORA-16004: backup database requires recovery
ORA-01152: file 1 was not restored from a sufficiently old backup
ORA-01110: data file 1: 'D:\ORACLE\ORADATA\ORCLSB\SYSTEM01.DBF'
I take the copy the datafiles from primary database and Pase them to the Standby database and the Enviroment of two database is :
SPfile for primary(GISC) IS:
*.compatible='10.2.0.3'
*.control_files='C:\oracle\product\10.2.0\oradata\gisc\CONTROL01.CTL','C:\oracle\product\10.2.0\oradata\gisc\CONTROL02.CTL','C:\oracle\product\10.2.0\oradata\gisc\CONTROL03.CTL'
*.db_block_size=8192
[code]....
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Apr 9, 2013
1) If i do changes in table on primary database and if i open standby database in Read-Only mode, i can see those changes immediately only if Real Time Apply is enabled. Am i correct? Database version is 10.2.0.4
2) From 11g, It is possible to apply redo while the standby is open in read only mode. prior to 11g, it was not possible. Right?
3) Should I first cancel Managed Recovery prior to issuing “ALTER DATABASE COMMIT TO SWITCHOVER TO PRIMARY”?
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May 26, 2013
I have dataguard configuration operating in maximum availability mode with a local standby db (A - lgwr sync not using real time apply) and a remote standby db (B - lgwr async). I then simualted a crash of my primary database with batch jobs running. Since the stby db A is in lgwr sync option ,all the commited data in the current online redo log has been transmitted to stby A and is present in its stby redo log (Group 2).How do I apply this stby redo log to the remote stby db.
Tried the following methods.
1.ftp the stby redo log to the remote db and tried to regiter it, got an error that it is not completely archived.
2.issued the recover standby database command and supplied the stby redo log when it asked for the sequence in the stby redo, got an error saying there is corruption in a block(tried this option multiple times ended up with the same result.)
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Jul 17, 2013
can i create physical standby database to logical standby database.
my structure
============
primary database--->physical standby-->logical standby
for fail over case ==>physical standby convert to primary and logical standby connected to current primary database.
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Jun 13, 2011
I have problems in opening the database of the physical standby in read- write mode/ read only mode. I have a primary server which is running on 2 node RAC and the standby on a seperate single server being used as DR. I recently got this server and my aim was to isolate the standby server from primary server and perform few test. As it has never been tested even once.
Primary Database spec: (2 Node Rac on ASM)
Oracle Version : 10.2.0.3.0
O/s : HP-UX B.11.23
Standby Database spec: (Single Node)
Oracle Version : 10.2.0.3.0
O/s: HP-UX db01 B.11.23
Error:
--------------------------------------------------------------------------------
alter database recover managed standby database cancel;
Database altered.
SQL> alter database open
2 ;
alter database open
*
ERROR at line 1:
ORA-16004: backup database requires recovery
ORA-01152: file 1 was not restored from a sufficiently old backup
ORA-01110: data file 1: '+DATA/dprod/datafile/system01.dbf'
--------------------------------------------------------------------------------
Parameters :
log_archive_dest_2 string SERVICE=PROD1 LGWR ASYNC VALID
_FOR=(ONLINE_LOGFILES,PRIMARY_
ROLE) DB_UNIQUE_NAME=PROD
remote_archive_enable string true
fal_client string DPROD
fal_server string PROD1, PROD2
Steps tried so far:
Changed log_archive_dest_2 = DEFER on both the primary nodes
Standby :
startup nomount
alter database mount standby database;
alter database recover managed standby database disconnect;
alter database recover managed standby database cancel;
alter database open/readonly (tried both)
Same error.
On Primary:
SQL> select max(sequence#) from v$log_history;
MAX(SEQUENCE#)
--------------------------------------------------------------------------------
55702
on Standby:
MAX(SEQUENCE#)
--------------------------------------------------------------------------------
33289
Primary Database:
SELECT SEQUENCE#, FIRST_TIME, NEXT_TIME FROM V$ARCHIVED_LOG ORDER BY SEQUENCE#;
SEQUENCE# FIRST_TIME NEXT_TIME
--------------------------------------------------------------------------------
55700 13-JUN-11 13-JUN-11
55700 13-JUN-11 13-JUN-11
55701 13-JUN-11 13-JUN-11
55701 13-JUN-11 13-JUN-11
55702 13-JUN-11 13-JUN-11
60824 rows selected.
Standby Database:
SEQUENCE# FIRST_TIME NEXT_TIME
--------------------------------------------------------------------------------
55698 13-JUN-11 13-JUN-11
55699 13-JUN-11 13-JUN-11
55700 13-JUN-11 13-JUN-11
55701 13-JUN-11 13-JUN-11
15206 rows selected.
Additional Information : There is a delay of 20 minutes before the logs get applied. which has been intentional set by team. Dataguard broker is not configured as well.
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Jul 23, 2010
I need to rename an Oracle9i database on windows which has a physical standby database running on a different machine.
I have the steps to rename the primary database but am unsure of it's impact on the physical standby database. It seems like I will have to re-create the physical standby database, since renaming the primary database involves opening the db with "resetlogs". It's a production environment hence can't play with it without knowing the results.
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Oct 19, 2011
We're currently in a situation where the primary database server fs size does not match the standby database server fs size.
Standby database filesystem is almost 100% utilized, and we suggested to move some of the datafiles first to avoid threshold alerts and archive gaps.
Now, if we're gonna move datafiles on the physical standby, I believe the process would be stop managed redo apply -> shutdown standby -> OS move -> startup mount -> alter rename -> start managed redo apply. Is this correct? If not, how?
Also, would it have an effect if the controlfiles of primary and standby do not match because of the movement?
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Jul 24, 2013
I have a setup where i have one physical and logical standby from a primary database. In case of switch over between primary and physical database my logical apply gets stopped. Can a logical database be applied from a physical standby ?
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Sep 17, 2012
DB1 <Primary> - Production
DB2 <Physial Standby> - DR
I will need to startup my DB2 in DR segment for testing.If i perform the below, will it affect my Production DB? I need it to be up and running as well.
DR:
recover managed standby database cancel;
shutdown immediate;
startup nomount;
alter database mount standby database;
recover standby database until cancel;
alter database activate standby database;
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Jun 28, 2013
Our client requirement is to avoid table data to physical standby database.
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Nov 23, 2010
1) The Primary Database is UP. The Physical Stand By Database is DOWN. The Current Archive Log Sequence is 99 in Primary.
We have to apply Archive Log from 51 to 99 to the Standby Database. But Unfortunately, there is no backup of those Archivelogs and the ArchiveLogs from 51 to 98 have got deleted at Primary end.
Now how will you apply these Archive Logs from Primary Database to Physical Standby Database?
Note : The Physical StandBy Database is DOWN.
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Nov 23, 2011
I have set up a single instance standbys for rac databases. Now, I need to offload the backups from the primary on to the standbys.
1. cancel managed recovery
2. connect to target(standby) and catalog and backup the standby
3. put standby in managed recovery mode.
I think following these steps, I can restore primary(?). Now, My question is, how can I use these standby backups to clone/refresh databases? I tried it by connecting to target(primary), catalog and auxiliary but rman is using the primary backups instead of standby's to refresh the auxiliary database.
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May 9, 2013
I have Oracle database on Oracle 10g R2 with physical as well as logical standby database.
1) Is is necessary to take Physical standby database backup?
2) If 1) yes then Which RMAN backup is preferred?with catalog or default?How to take backup as different location?
3)how to Restore that backup?How to ensure backup is valid?
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Jul 17, 2012
step by step procedure to configure physical standby database.....
i have to create on windows not in linux...so simple step by step procedure,once configured it should be up and running;
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Feb 21, 2013
I am using data guard and a physical standby database.How to assign backups on physical standby database to reduce the load on Primary database.
environment: windows
Database version:11.2.0.1.0
What are the pro and cons on assigning RMAN backups jobs to physical standby database?
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May 20, 2011
i'm a trainee for my PFE and i should to implement a physical standby database,i chosed this tuto URL.... but in step 10 when i do SELECT * FROM v$archive_dest where dest_id=2 ; i have i message error.
ORA-12154: TNS: could not resolve the connect identifier specified.
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Sep 16, 2009
I would need to create a physical standby database for DR without using data guard. I like to know in more details like
1. What would be required to switch over to standby database in case of failure of primary database? Is it going to be a manual process each time, or can be automated using scripts?
2. How the archive logs will be applied to standby database in timely manner to sync with primary database?
3. How the Primary database will be synch with Standby database once the issue resolved on primary database.
4. Where do I get a complete script to create physical standby database on Windows platform?
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Jul 25, 2013
I have a setup where i have one physical and logical standby from a primary database. In case of switch over between primary and physical database my logical apply gets stopped. Can a logical database be applied from a physical standby ?
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Sep 21, 2010
I am trying to create the Physical StandBy Database in the same server. Till last 2 Final steps, everything went on well. In the final steps, when I try to open the StandBy Database, it throws the following Error:
*******************************************************
SQL...> alter database open;
alter database open
*
ERROR at line 1:
ORA-01154: database busy. Open, close, mount, and dismount not allowed now
I tried creating the Physical Standby with the following Steps.into that & tell me whether I have done any mistake.Also tell me any step I have missed from the following list of steps:
Environment: Oracle Release 10.2.0.1.0 / Windows 2003 Server Enterprise Edition SP2
Primary DB = 'PrimDB'
StandBy DB to be created = 'StBy1DB'
In the same Server, location for
PrimDB datafiles = 'F:\oracle\product\10.2.0\oradata\PrimDB\Data\',
StandBy Datafiles = 'E:\StandBy_DB\Data\'
[code]...
ERROR at line 1:
ORA-01154: database busy. Open, close, mount, and dismount not allowed now
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Apr 5, 2010
I am facing a strange issue on 11gR2 (OEL 5.4) standby readonly with apply database.It's throwing 16000: database open for read-only access during SELECT's .
Here is snapshot of errors.
ORA-00604: error occurred at recursive SQL level 1
ORA-16000: database open for read-only access
SQL> l
1* SELECT t0.airportID, t0.archived, t0.assetTag, t0.bluetoothID, t0.cmBundle, t0.createdDate,
t0.currentProductTaskID, t0.ethernetID, t0.failOrReworkCount, t0.highestCompletedTaskTypeID, t0.lastModDate, t0.lastStationID,
t0.modCount, t0.modelID, t0.oemSerialNumber, t0.orgSerialNumber, t0.pdmVersion, t0.preburnComplete,
t0.productID, t0.reworked, t0.secondaryEthernetID,
t0.serialNumber, t0.shipped, t0.specialBuildTypeID,
[code]....
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Nov 4, 2010
why RMAN is unable to create physical standby database ?
RMAN> connect auxiliary sys/system@DGREPL
connected to auxiliary database: DGREPL (not mounted)
RMAN> connect target sys/system@REPL
connected to target database: REPL (DBID=2730563515)
RMAN> run{
allocate channel prmy1 type disk;
allocate channel prmy2 type disk;
allocate channel prmy3 type disk;
allocate channel prmy4 type disk;
[code]....
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Mar 27, 2013
I am using Oracle RAC 11.2.0.3 as primary database, we are going to start using Oracle data guard. So I am designing my infrastructure and planing to use Oracle 11.2.0.3 Single instance as my physical stand by database.
My question is it feasible to have my standby database as single instance while the primary is RAC? is it feasible to build my Oracle single instance standby database from the RMAN backup of the RAC primary database? Is there any restrictions (or any points to be taken into consideration) since my primary database is RAC while the physical standby is Oracle single instance?
in the below link
[URL].......
it was mentioned that primary can be RAC or single and same for standby, but my question is it feasible to have primary as RAC while standby as single instance? or it should be like each others?
The primary database can be either a single-instance Oracle database or an Oracle Real Application Clusters (RAC) database. Similar to a primary database, a standby database can be either a single-instance Oracle database or an Oracle RAC database.
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Apr 21, 2011
alter database commit to switchover to physical standby; i am getting ora-16416 switchover target is not synchronized with the primary what to do
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Aug 30, 2013
My steps for testing as below:
1.create a primary database
2.duplicate a physical standby database;
3.turn on flashback on both databases.
4.record SCN xxx on physical standby database.
5.convert physical standby to logical standby (using keep identity statement)
6.flashback to logical standby to xxx
7.convert logical standby to physical standby
8.using real time apply I got errors: Fast Parallel Media Recovery enabledManaged Standby Recovery starting Real Time ApplyMRP0:
Background Media Recovery waiting for new incarnation during transient logical upgrade procedure
Errors in file /home ora/ app/ oracle/ diag/ rdbms/ ora11gr1dg/ora11gr1dg/trace/ora11gr1dg_mrp0_10120.trc:ORA-19906: recovery target incarnation changed during recoveryManaged Standby Recovery not using Real Time ApplyErrors in file /home/ ora/app/ oracle/diag/ rdbms/ ora11gr1dg/ ora11gr1dg/ trace/ora11gr 1dg_mrp0_ 10120.trc:ORA-19906: recovery target incarnation changed during recovery
Errors appears every 10 seconds. Seems MPR0 is waiting for new incarnation for a long time. So am I.Standby database incarnation:
List of Database IncarnationsDB Key Inc Key DB Name DB ID STATUS Reset SCN Reset Time-------1 1 ORA11GR1 3853851354 CURRENT 1 08/09/2013 01:02:182 2 ORA11GR1 3853851354 ORPHAN 2127877 08/28/2013 19:22:01 BGV
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Sep 3, 2010
ORACLE VERSION: 11.2
ENVIRONMENT: physical standby database
MODE: maximum performance mode.
SQL> select * from v$archive_gap;
no rows selected
SQL> select sequence#, applied from v$archived_log where applied='NO';
SEQUENCE# APPLIED
---------- ---------
10929 NO
10930 NO
10931 NO
10932 NO
10933 NO
10934 NO
10935 NO
10936 NO
10937 NO
11073 NO
11074 NO
SEQUENCE# APPLIED
---------- ---------
11075 NO
11076 NO
11077 NO
11078 NO
11079 NO
11080 NO
11081 NO
11082 NO
11083 NO
11084 NO
11085 NO
SEQUENCE# APPLIED
---------- ---------
11086 NO
11087 NO
11088 NO
11089 NO
11091 NO
11092 NO
What would be the cause
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Nov 5, 2010
I am trying to duplicate an Database and create an Physical Standby through following command
I took the backup through rman using the following command on Monday
RMAN> run
2> {
3> ALLOCATE CHANNEL C1 TYPE DISK FORMAT 'E:DB_FULL\DB1_FULL_%U';
4> ALLOCATE CHANNEL C2 TYPE DISK FORMAT 'E:DB_FULL\DB1_FULL_%U';
5> ALLOCATE CHANNEL C3 TYPE DISK FORMAT 'E:DB_FULL\DB1_FULL_%U';
6> ALLOCATE CHANNEL C4 TYPE DISK FORMAT 'E:DB_FULL\DB1_FULL_%U';
7> backup database format 'E:DB_FULL\DB1_FULL_%U';
8> backup archivelog all format 'E:DB_FULL\DB1_FULL_%U';
9> backup current controlfile for standby format 'E:DB_FULL\DB1_FULL_%U';
10> }
Today i am trying to clone the DB1 Database as physical standby ...
using the following command
> RMAN TARGET sys/sys@db1 AUXILIARY /
Then I exceuted the following command
> duplicate target database for standby dorecover;
but i am getting error RMAN-06024: no backup or copy of the control file found to restore
contents of Memory Script:
{
set until scn 11182084819076;
restore standby controlfile;
sql clone 'alter database mount standby database';
}
executing Memory Script
executing command: SET until clause
Starting restore at 05-NOV-10
using channel ORA_AUX_DISK_1
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of Duplicate Db command at 11/05/2010 15:45:30
RMAN-03015: error occurred in stored script Memory Script
RMAN-06026: some targets not found - aborting restore
RMAN-06024: no backup or copy of the control file found to restore
i even tried to switch the log file of the primary database DB1 but no avail,
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Aug 7, 2013
I have a Physical Standby database on server#2 which has its UNDO and TEMP tablespaces in a mount point that is a bit small. I discovered yesterday that this mount point was completely filled. This is not an immediate problem, because even though the TEMP and UNDO tablespaces are large, there is almost no usage of them.
I logged into my Primary, and created a new temp tablespace (TEMP2), made it the database default, dropped the TEMP tablespace, and then re-created the TEMP tablespace in a different mount point (with a much higher capacity!). I then made the new TEMP as the database default temp tablespace again. I expected that these changes would be propagated over to the Physical Standby via log application, but they didn't come over.
I have standby_file_management set to AUTO, and there are no unapplied logs. Everything OTHER than the temp tablespaces seems to be in synch.
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Sep 22, 2010
I have to implement Physical standby using same SID. parameters required to set on Primary and standby. Also what entries are required to do in TNS file. Recently we have faced hardware failure.
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