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

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RMAN-08120: warning: archived log not deleted, not yet applied by standby

BACKUP DATABASE PLUS ARCHIVELOG DELETE INPUT; In Data Guard environment this command tries to 1.backup archivelog before starting backup 2.delete archivelog before starting backup 3.backup database 4....
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Oracle 19c with SAP System - ORA-12154: TNS:could not resolve the connect identifier specified For Physical Standby

Oracle 19c + SAP system. On primary side I have a problem when transporting logs to Data Guard side. Outputs from primary side: SQL> select status, error from v$archive_dest where dest_id=2; ...
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Oracle 19c standby - redo transport errors

I have a 19c RAC Standby database on RHEL6 using dataguard, however, I’m currently getting a “ORA-16737 redo transport device dir standby has an error” msg. I’ve tried recreating the password file and ...
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41 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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109 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 ...
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172 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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39 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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49 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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64 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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113 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 ...
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106 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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49 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, ...
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142 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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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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98 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 ...
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145 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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2k 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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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)...
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470 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 ...
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212 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 ...
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1answer
66 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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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, ...
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791 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 ...
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128 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 ...
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14k 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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81 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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540 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 ...
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259 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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337 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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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348 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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632 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 ...
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155 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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3k 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; ...
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883 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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187 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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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 ...
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1answer
271 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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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 ...
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575 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 ...
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1answer
4k 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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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 ...
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1k 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 ...
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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 ...
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1answer
934 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 ...
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34 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 ...