Questions tagged [dataguard]
Oracle Data Guard, Oracle Data Guard Broker and Oracle Active Data Guard are the commercial names for technologies that allows physical and logical standby (slave) databases to be configured and managed with Oracle Database Enterprise Edition
90
questions
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1answer
36 views
Need for backup with Active Dataguard
When exploring the features of Oracle Active Dataguard, I found that one of them is block change tracking to allow the standby db to take the load of backups instead of the primary database doing them....
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1answer
44 views
How to change the thread of redo logfile group in standby database?
Is there some way to correct the thread of redo logfile group? it's ok the thread to be wrong?
executing the following query I get de logfile groups, thread and members:
set linesize 2000;
set ...
0
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1answer
57 views
RMAN restore of primary database - impact on standby database
I've just restored an 11g primary DB that was destroyed. Restored the controlfile from tape and performed a full restore, recovery, and open resetlogs. Looks fine now. How will my physical standby (...
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1answer
34 views
Oracle 11g migration to AWS
I have an on premise oracle 11g database that i have to migrate to an EC2 instance hosting Oracle 11g in AWS. I have three options to achieve this
Use Oracle Data guard to replicate the on premise ...
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0answers
15 views
Oracle 11g data guard in windows physical standby
I was wondering if there is a difference in setting up physical standby in windows and in Linux flavors.
I don't find any documents or guides in setting up data guard in windows environment.
All I ...
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1answer
47 views
How to get the oracle dataguard log transfer and applying status?
Logs are transferred from primary db instances to stand-by db and applied continuously.
Please advise how to get the report in the following format (preferably in browser) at some frequency (say 5sec/...
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vote
1answer
59 views
Move Oracle Database to New Server with Dataguard in place
I have a live Oracle Database with Dataguard in placed. I want to migrate live database to new server as tech refresh, but only Primary database. How I can achieve this? I have ideas on how I want to ...
0
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1answer
46 views
Oracle data Guard status (active/passive)- version 11g
I have 2 servers: Primary (ABCUAT) and Standby (ABCUAT1) configured as Active-Standby DataGuard by previous DBA.
When I took over the system, I think DataGuard was not in sync, but I could not ...
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0answers
58 views
How can i change protection mode on dataguard configuration?
hello guys i have a problem. I have a primary database and a standby database which normally work in MaxPerformance mode. But as soon as I change the mode to MaxAvailabity I have the following error ...
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0answers
44 views
Oracle Dataguard old sequences
After having set up a dataguard environment with Oracle 12c I notice that when I execute the following command in the primary it shows me the archivelogs:
select sequence#, first_time, next_time, ...
0
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1answer
123 views
11g dataguard broken after primary ran out of space
I have Data Guard setup with Primary (A) and read-only standby (B).
primary server (A) ran out of space on the data mount point as auto extend was turned on. I managed to revive it by adding ...
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1answer
1k views
ora-49204: recursive dde invocation at phase i - after switchover to standby
I am currently testing a data guard environment. After a switchover, which is performed successfully, I can see the following error in the alert.log of the new stand:
ora-49204: recursive dde ...
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0answers
83 views
Operation CTL_BOOTSTRAP canceled during phase 0, error = ORA-408
I am currently testing a data guard environment.
In the alert.log of the broker I always see the following message after a switchover:
2019-05-23 08:08:54.716 7fffffff 0 Operation ...
0
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1answer
131 views
Dataguard the datafiles are created in another diskgroup
I have a recently made physical dataguard configuration and everything works correctly so far, but I've noticed that the datafiles that are created in the primary are created in the standby in a ...
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1answer
1k views
RMAN Duplication - Oracle Data Guard - Syntax error(s) RMAN-01009 / RMAN-01008 / RMAN-01007
New to DB. Interested in Oracle Data Guard. New working with RMAN.
All of this is for testing only and does not involve any kind of production env.
Making use of ORACLE documentation:
Step by Step ...
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1answer
2k views
ORA-16706: Data Guard broker worker process not available [closed]
Database version is 12.1.0.1.
We have one primary database and two physical standby database and dataguard also configured.
Dataguard sync is fine working between primary and physical standby.(No lag)...
1
vote
1answer
445 views
Rebuild dataguard configuration when standby is broken
I have an Oracle Data Guard configuration with two servers:
oradb (physical)
oradbstb (standby)
Both are running with Oracle 11g R2.
A few days ago I had problems with the standby (the server ...
0
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1answer
206 views
Oracle RAC and DataGuard configuration
We have deployed an Oracle RAC cluster which consists of three Oracle instances. As we are considering the HA issue, and as far as I know, the only way of Oracle HA is DataGuard. So is it possible ...
2
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1answer
64 views
Network line switch-over in Oracle Data Guard
We have a Primary database with a remote Standby which established using Oracle Data Guard. They can be syncing over a private Wireless Network and a Wired LAN (There are two options as network medium)...
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1answer
2k views
Problems with connecting to a remote Oracle 12c database
tl;dr
RMAN failing to connect to standby database with correct credentials.
RMAN-04006: error from auxiliary database: ORA-01017: invalid username/password; logon denied
Password file is correct, ...
2
votes
1answer
671 views
MSSQL Mirroring equivalent to Oracle Data Guard Snapshot Standby
Does MSSQL support an operating mode on the failover partner / mirror that is functionally equivalent to Oracle database's Snapshot Standby mode?
ie A temporary active copy of the replicated ...
1
vote
1answer
123 views
Using hard-coded host name in logon trigger
I need to write a trigger which prevents certain users from logging into the production database.
We use Active Data Guard.
If I hardcode the Linux hostname in the trigger to verify the host is ...
0
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1answer
13k views
Listener Status Blocked
I'm deploying a 12C dataguard on oracle.
When performing all procedures, start the instance in the standby, as nomount. I noticed that the standby listener is as BLOCKED status, making it impossible ...
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1answer
70 views
Whether Oracle Data Guard re-transmits logs from their starting after network interruptions?
Whether Oracle re-transmits logs from starting after any network interruptions?
If yes, Please advise on how to configure (or) instruct Oracle Data Guard to resume a failed log transfer from where it ...
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1answer
522 views
How to instruct Oracle 11g Standby database MRP to bring down as soon as applying the given archive log file?
Scenario:
Let us consider the following:
Oracle 3 node RAC.
RMAN Managed Recovery and Dataguard are configured between production and standby DBs.
The SCNs of 3 nodes are S1, S2, S3 at some point of ...
0
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1answer
249 views
Backup Oracle Data Guard with TDPO
We are using TSM/TDPO SBT to backup Oracle Databases. When using Oracle Data Guard with TDPO, what is the best strategy to ensure backups continue after failover/switchover?
TSM/TDPO uses a feature ...
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0answers
319 views
Can I have single tablespace excluded from DataGuard
Can I have single tablespace not being logged and excluded from DataGuard with in same database? We are trying to keep objects owned by a schema isolated in one tablespace and set those objects for ...
0
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1answer
5k views
Oracle Data Guard Error
DGMGRL for Linux: Version 12.1.0.2.0 - 64bit Production
Copyright (c) 2000, 2013, Oracle. All rights reserved.
Welcome to DGMGRL, type "help" for information.
Connected as SYSDBA.
DGMGRL> show ...
0
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1answer
4k views
Setting up the Listeners for Oracle Dataguard
I setup up a Oracle 12c Dataguard configuration. To build the standby database I used the RMAN DUPLICATE command, which requires a static listener configuration.
tnsname.ora on HOSTNAMEA and ...
1
vote
1answer
2k views
Nologging materialized view
I need to create a materialized view (MV) with auto refresh every hour. After I create it, a lot of redo logs are generated (10GB per hour). I think the solution is to recreate the MV in NOLOGGING ...
2
votes
1answer
3k views
Setting DataGuardSyncLatency for Oracle Data Guard
With Oracle 12.2 there is a new parameter DataGuardSyncLatency when setting up Data Guard. I keep getting the warning:
Warning: ORA-16714: the value of property DataGuardSyncLatency is inconsistent ...
2
votes
1answer
2k views
When trying to configure data guard broker I'm getting Error: ORA - 12154 : TNS: could not resolve the connect identifier specified
I'm trying to setup data guard broker in my production instance. I have duplicated the primary database to standby database successfully. I've added primary database to data broker configuration and ...
3
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0answers
341 views
Cannot add standby database to the data broker configuration in oracle 11g
I have duplicated the primary database to standby database and then I added the primary database in data broker configuration. But when I'm trying to add standby database I'm getting following error:
...
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0answers
594 views
When trying to configure data guard broker I'm getting Error: ORA-16606: unable to find property “”
I'm trying to setup data guard broker in my production instance. I have duplicated the primary database to standby database successfully. I've added primary database to my configuration and when I'm ...
0
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1answer
135 views
Granting Read access to Replica database (via data guard) but need to restrict the same login in production Database [duplicate]
We use Data Guard to replicate production Oracle database. We have a need to grant read access to replica DB and at the same time need to restrict that same login gaining read access to production.
...
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0answers
2k views
ORA-17627:invalid username/password;logon denied error message when trying to duplicate database in data broker
I'm trying to duplicate the database for the purpose of Data broker in windows platform. When I'm trying to duplicate using below command
DUPLICATE TARGET DATABASE TO LOCALDEV FROM ACTIVE DATABASE;
...
1
vote
1answer
821 views
What is the standard time delay taken for the data to get reflected in standby database when a new data is inserted in primary database
I've configured Data guard setup using data broker. When I'm inserting new data to the tables in primary database which is suppose to reflect in standby database. When I checked those data's in ...
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1answer
173 views
Replication using Datagaurd to FAR DR
We have already setup Oracle replication using Dataguard from a primary active site to a near DR site. The near DR is a passive site.
Is it possible to replicate from the Near DR (Passive) site to ...
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2answers
1k views
JDBC Connection on Current Primary Database After Switchover: ORA-01033 encountered
We are using Oracle Data Guard and currently testing Disaster Recovery scenarios, which is starting the application after switching over from the Primary Database to the Secondary Database.
I am ...
2
votes
1answer
264 views
Listener is not starting in my Standby database
I'm facing a serious issue in data guard installation. I'm setting oracle_sid and oracle_home and when I start the listener,error is showing as below:
C:\Windows\system32>lsnrctl start
LSNRCTL for ...
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0answers
3k views
ORA-00257, 00000, "archiver error. Connect internal only, until freed
When I was connecting to my database through SQL Developer tool I was getting error message as below:
ORA-00257, 00000, "archiver error. Connect internal only, until freed."
Cause: The archiver ...
0
votes
1answer
565 views
Using Oracle SCN to Calculate RPO
Is the difference between the SCN of primary and secondary a good indicator of RPO?
We are planning for the below logic to get the RPO.
Get the current SCN from secondary.
Get the time stamp of the ...
3
votes
1answer
3k views
Schema based replication in Oracle using Data Guard
We have active-passive database replication in our system cluster, so passive db belongs to DR class of nodes. We're trying to design zero-downtime deployment so I went out with few ideas.
Since we ...
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votes
2answers
2k views
How to check if dataguard is working properly?
I've a requirement for configuring data guard, but I haven't done it in the past. I'm using Oracle 11g database in Windows platform. On reading several blogs and tutorials in Internet, I managed to ...
1
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1answer
954 views
Unable to start listener of standby database
As part of data guard configuration, I've installed standby database using Oracle Software only and configured .ora files/folders as required. But while trying to start the listener or check the ...
1
vote
1answer
414 views
How real-time apply works in logical standby oracle?
I am a little bit confused about real-time apply services.
I've read a documentation about the services and I still have a question.
Does archived redo logs required for logical standby or not?
I've ...
2
votes
1answer
927 views
ORA-00205 error during the startup of physical standby database
Steps I have followed:-
Created a physical standby database by using DUPLICATE TARGET DATABASE.
Then checked the log gap between these two databases which was fine and in sync.
After that standby ...
0
votes
1answer
33 views
Force standby de-synchronisation for script testing
Two databases are configured in a production-standby configuration with Oracle Dataguard.
I want to test a script that supposedly detects whether the dataguard observer is in the status SYNCHRONIZED ...
3
votes
1answer
849 views
Data guard broker cascaded standby delay parameter is ignored
I have 3 databases: db01 primary, db02 standby cascading, db03 standby cascaded.
I have configured broker parameters by the following way:
DGMGRL> show configuration
Configuration – DB_HQ_DR
...
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0answers
1k views
RMAN Duplicate database errors with password file location could not be found
Running RMAN to duplicate two Oracle 12.1.0 databases, using the below, I'm faced with an error I can't seem to find an answer too.
c:\rman TARGET sys/password@TEST AUXILIARY sys/password@TEST_SDBY
...
