Switchover role transition in a standby configuration

Hi All,
Oracle 10.2.0.1
Linux RHEL 5
Vmware server 2.1
Host Os Windows Xp
I have created a database and configured the standby for it.This is a virtual machine setup.
The current primary database has 3 redologfiles and no standby redologfiles added.And the standby database has the redologfiles same as the primary and 3 standby redologfiles configured just for enabling the real time apply.
Now i am trying to switchover the roles of both the databases.
So i gave the below command in the primary database
sql>alter database commit to switchover to physical standby with session shutdown;
i am getting the below error..
ORA-16416: Switchover target is not synchronized with the primary
When i check the V$archive_gap in standby nothing returns..
I tried to switch logfile in the primary and manually transfered the recent archivelog to the standby location and applied manually, still getting the same error..
Please Advice...
TIA,
Edited by: ORCLDB on Aug 25, 2009 4:41 PM

>
The current primary database has 3 redologfiles and no standby redologfiles added.And the standby database has the redologfiles same as the primary and 3 standby redologfiles configured just for enabling the real time apply.
Now i am trying to switchover the roles of both the databases.
So i gave the below command in the primary database
sql>alter database commit to switchover to physical standby with session shutdown;
i am getting the below error..
ORA-16416: Switchover target is not synchronized with the primary
>
You should create the standby logfiles on the primary as well. Also, you must point with the LOG_ARCHIVE_DEST_2 (probably) parameter from the standby to the primary with LGWR SYNC AFFIRM, in order to keep your protection level after the switchover. I would also recommend that you go with the Data Guard Broker in order to do switchover & failover, it's much easier to say
DGMGRL> switchover to sb;And DMON will take care for all the appropriate SQL commands and LOG_ARCHIVE_DEST_n settings!
Kind regards
Uwe
http://uhesse.wordpress.com

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oracleRaj
Handle: oracleRaj
Status Level: Newbie
Registered: Mar 26, 2010
Total Posts: 370
Total Questions: 64 (36 unresolved)
Name Raj
Location Karachi
Occupation DBA

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Hello All,
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I am using "Oracle Server-Standard Edition 11g R2", " version: 11.2.0.1"
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00000706 56.78187180
[11964] CallStack:Microsoft.RightsManagementServices.Configuration.HelperMethods.IsValidConfigSetting
00000707 56.78187180
[11964] System.Xml.Schema.XmlSchemaValidationException
00000708 56.78187180
[11964] Message: The 'http://tempuri.org/RMProvisionSettingsSchema.xsd:Domain' element is invalid - The value 'D' is invalid according to its datatype 'http://tempuri.org/RMProvisionSettingsSchema.xsd:WindowsDomainName' -
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00000710 56.78187180
[11964] at System.Xml.Schema.XmlSchemaValidator.CheckElementValue(String stringValue)
00000711 56.78187180
[11964] at System.Xml.Schema.XmlSchemaValidator.ValidateAtomicValue(String stringValue, XmlSchemaSimpleType& memberType)
00000712 56.78187180
[11964] at System.Xml.Schema.XmlSchemaValidator.InternalValidateEndElement(XmlSchemaInfo schemaInfo, Object typedValue)
00000713 56.78187180
[11964] at System.Xml.DocumentSchemaValidator.ValidateElement()
00000714 56.78187180
[11964] at System.Xml.DocumentSchemaValidator.ValidateNode(XmlNode node)
00000715 56.78187180
[11964] at System.Xml.DocumentSchemaValidator.ValidateElement()
00000716 56.78187180
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00000717 56.78187180
[11964] at System.Xml.DocumentSchemaValidator.ValidateElement()
00000718 56.78187180
[11964] at System.Xml.DocumentSchemaValidator.ValidateNode(XmlNode node)
00000719 56.78187180
[11964] at System.Xml.DocumentSchemaValidator.ValidateElement()
00000720 56.78187180
[11964] at System.Xml.DocumentSchemaValidator.ValidateNode(XmlNode node)
00000721 56.78187180
[11964] at System.Xml.DocumentSchemaValidator.ValidateElement()
00000722 56.78187180
[11964] at System.Xml.DocumentSchemaValidator.ValidateNode(XmlNode node)
00000723 56.78187180
[11964] at System.Xml.DocumentSchemaValidator.ValidateNode(XmlNode node)
00000724 56.78187180
[11964] at System.Xml.DocumentSchemaValidator.Validate(XmlNode nodeToValidate)
00000725 56.78187180
[11964] at System.Xml.XmlDocument.Validate(ValidationEventHandler validationEventHandler, XmlNode nodeToValidate)
00000726 56.78187180
[11964] at Microsoft.RightsManagementServices.Configuration.HelperMethods.IsValidConfigSetting(ConfigOperationType configOperation)
00000727 56.78187180
[11964]
00000728 56.78199768
[11964] -Microsoft.RightsManagementServices.Configuration.Commands.InstallADRMS.ProcessRecord
00000729 56.84855270
[11964] +Microsoft.RightsManagementServices.Configuration.DeploymentPSProvider.RemoveDrive
00000730 56.84864807
[11964] -Microsoft.RightsManagementServices.Configuration.DeploymentPSProvider.RemoveDrive
00000731 56.86203766
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00000732 56.86203766
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00000733 56.86203766
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00000734 56.86203766
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00000735 56.86203766
[23784] StackTrace: at Microsoft.ADRoles.ServerManager.Common.PowerShellRemoting.WorkflowExecutor.ExecuteCommand(Command workflowCommand, EventHandler`1 outputEventsHandler, EventHandler`1 progressEventHandler,
EventHandler`1 finishedEventHandler, EventHandler`1 warningEventHandler, EventHandler`1 errorEventHandler)
00000736 56.86203766
[23784] at Microsoft.RightsManagementServices.Deployment.M3PPowerShellEngine.ExecuteCommand(CmdletProperties propertyBag, EventHandler`1 outputHandler, EventHandler`1 progressStatusHandler, EventHandler`1 progressPercentageHandler, EventHandler`1
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00000737 56.86203766
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00000738 56.86203766
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00000739 56.86203766
[23784] at System.ComponentModel.BackgroundWorker.WorkerThreadStart(Object argument)
00000740 56.86203766
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00000741 56.86203766
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00000742 56.86203766
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00000743 56.86203766
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00000744 56.86225891
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00000745 56.86225891
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00000746 56.86225891
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00000748 56.86225891
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EventHandler`1 finishedEventHandler, EventHandler`1 warningEventHandler, EventHandler`1 errorEventHandler)
00000749 56.86225891
[23784] at Microsoft.RightsManagementServices.Deployment.M3PPowerShellEngine.ExecuteCommand(CmdletProperties propertyBag, EventHandler`1 outputHandler, EventHandler`1 progressStatusHandler, EventHandler`1 progressPercentageHandler, EventHandler`1
warningHandler, EventHandler`1 errorHandler)
00000750 56.86225891
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00000751 56.86225891
[23784] at Microsoft.RightsManagementServices.Configuration.AbortableBackgroundWorker.OnDoWork(DoWorkEventArgs e)
00000752 56.86225891
[23784] at System.ComponentModel.BackgroundWorker.WorkerThreadStart(Object argument)
00000753 56.86225891
[23784] + System.Management.Automation.RemoteException
00000754 56.86225891
[23784] + Message: AD RMS setup failed because of invalid configuration settings.
00000755 56.86225891
[23784] + StackTrace:
00000756 56.86225891
[23784]
00000757 56.86357880
[23784] PageLeave: Progress
00000758 56.86389160
[23784] ErrorNotification: <null>
00000759 56.86653519
[23784] PageEnter: Results
00000760 56.89128876
[23784] +[Tier2Diagnostic] One or more AD RMS role services could not be configured:
00000761 56.89128876
[23784] CallStack:Microsoft.RightsManagementServices.Deployment.ViewModel.ResultsPageViewModel.SetUpResultDetails
00000762 56.89128876
[23784] System.Management.Automation.ApplicationFailedException
00000763 56.89128876
[23784] Message: One or more AD RMS role services could not be configured:
00000764 56.89128876
[23784] StackTrace:
00000765 56.89128876
[23784] + Microsoft.ADRoles.ServerManager.Common.PowerShellRemoting.RemotingException
00000766 56.89128876
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00000767 56.89128876
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00000768 56.89128876
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warningHandler, EventHandler`1 errorHandler)
00000769 56.89128876
[23784] at Microsoft.RightsManagementServices.Deployment.AbstractPowerShellProvider.<>c__DisplayClass3`1.<ExecuteAsynchronously>b__0(Object sender, DoWorkEventArgs eventArgs)
00000770 56.89128876
[23784] at Microsoft.RightsManagementServices.Configuration.AbortableBackgroundWorker.OnDoWork(DoWorkEventArgs e)
00000771 56.89128876
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00000772 56.89128876
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00000773 56.89128876
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00000774 56.89128876
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00000775 56.89128876
[23784]
00000776 56.89152908
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00000777 56.89152908
[23784] CallStack:Microsoft.RightsManagementServices.Configuration.AbortableBackgroundWorker`1+<>c__DisplayClass1.<Run>b__0
00000778 56.89152908
[23784] System.Management.Automation.ApplicationFailedException
00000779 56.89152908
[23784] Message: One or more AD RMS role services could not be configured:
00000780 56.89152908
[23784] StackTrace:
00000781 56.89152908
[23784] + Microsoft.ADRoles.ServerManager.Common.PowerShellRemoting.RemotingException
00000782 56.89152908
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00000783 56.89152908
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EventHandler`1 finishedEventHandler, EventHandler`1 warningEventHandler, EventHandler`1 errorEventHandler)
00000784 56.89152908
[23784] at Microsoft.RightsManagementServices.Deployment.M3PPowerShellEngine.ExecuteCommand(CmdletProperties propertyBag, EventHandler`1 outputHandler, EventHandler`1 progressStatusHandler, EventHandler`1 progressPercentageHandler, EventHandler`1
warningHandler, EventHandler`1 errorHandler)
00000785 56.89152908
[23784] at Microsoft.RightsManagementServices.Deployment.AbstractPowerShellProvider.<>c__DisplayClass3`1.<ExecuteAsynchronously>b__0(Object sender, DoWorkEventArgs eventArgs)
00000786 56.89152908
[23784] at Microsoft.RightsManagementServices.Configuration.AbortableBackgroundWorker.OnDoWork(DoWorkEventArgs e)
00000787 56.89152908
[23784] at System.ComponentModel.BackgroundWorker.WorkerThreadStart(Object argument)
00000788 56.89152908
[23784] + System.Management.Automation.RemoteException
00000789 56.89152908
[23784] + Message: AD RMS setup failed because of invalid configuration settings.
00000790 56.89152908
[23784] + StackTrace:
00000791 56.89152908
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Hi,
I have a setup of primary and standby databases in three locations A, B, C as below:
Database version: 11.1.7.0
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In location B I have a physical standby that replicates to site C.
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Which means in case the two sites - A & B reverse roles, site C will continue receiving redo logs from either A or B, depending on which one is the new standby.
However, the doubt comes in if site C were to become the new primary instance. I suspect that I would need to add two parameters LOG_ARCHIVE_DEST_2 and LOG_ARCHIVE_DEST_3 and point them to sites A and B respectively, and make them valid only for the primary role. In this case, if site C becomes the new primary, then both sites A and B can continue receiving redo logs from site C.
Anyone who has ever implemented this?
Regards,
dula

The scenario in the doc. may also help you:
http://download.oracle.com/docs/cd/B28359_01/server.111/b28294/cascade_appx.htm#i638620
Example E-1 Sample Use of Initialization Parameters in Cascaded Destinations
Boston Database (Primary Role)
DB_UNIQUE_NAME=boston
REMOTE_LOGIN_PASSWORDFILE=EXCLUSIVE
LOG_ARCHIVE_CONFIG='DG_CONFIG=(chicago,boston,denver)'
LOG_ARCHIVE_DEST_1='LOCATION=/arch1/boston/ VALID_FOR=(ALL_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=boston'
LOG_ARCHIVE_DEST_2= 'SERVICE=denver VALID_FOR=(STANDBY_LOGFILES,STANDBY_ROLE) DB_UNIQUE_NAME=denver'
LOG_ARCHIVE_DEST_3= 'SERVICE=chicago VALID_FOR= (ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=chicago'
Chicago Database (Standby Role)
DB_UNIQUE_NAME=chicago
LOG_ARCHIVE_CONFIG= 'DG_CONFIG=(chicago,boston,denver)'
REMOTE_LOGIN_PASSWORDFILE=EXCLUSIVE
LOG_ARCHIVE_DEST_1= 'LOCATION=/arch1/chicago/ VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=chicago'
LOG_ARCHIVE_DEST_2= 'SERVICE=denver VALID_FOR=(STANDBY_LOGFILES,STANDBY_ROLE) DB_UNIQUE_NAME=denver'
LOG_ARCHIVE_DEST_3= 'SERVICE=boston VALID_FOR= (ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=boston'
Denver Database (Standby Role)
DB_UNIQUE_NAME=denver
LOG_ARCHIVE_CONFIG= 'DG_CONFIG=(chicago,boston,denver)'
REMOTE_LOGIN_PASSWORDFILE=EXCLUSIVE
LOG_ARCHIVE_DEST_1= 'LOCATION=/arch1/denver/ VALID_FOR=(ONLINE_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=denver'
LOG_ARCHIVE_DEST_2= 'LOCATION=/arch2/denver/ VALID_FOR=(STANDBY_LOGFILES,STANDBY_ROLE) DB_UNIQUE_NAME=denver'
Both the Boston primary database and the Chicago physical standby database define the LOG_ARCHIVE_DEST_2 initialization parameter as SERVICE=denver VALID_FOR=(STANDBY_LOGFILES, STANDBY_ROLE). Hence, even if the Boston and Chicago databases switch roles, the redo data will continue to be forwarded to the Denver database. Remember, as part of the original setup of the physical standby database, you should define a local destination, VALID_FOR=(ALL_LOGFILES, PRIMARY_ROLE), that will be used for local archiving when the physical standby database transitions to the primary role.

Oracle 10g standby configuration - Restoring primary backup to Standby DB.

Hi experts,
This is my first time configuring a Standby (Data Guard) scenario for our Oracle data base. The platform used is Solaris 10 with Oracle 10g.
After reviewing a lot of documents and tutorials regarding this matter still have some doubts on how to get this scenario finally configured.
Basically I would like some confirmations regarding the following point. We have the new db already installed in our disaster recovery site and the next step I need to do is to perform an offline backup from our primary data base and then transfer that backup to our standby database. Iu2019m currently stuck in this steps since Iu2019m not completely sure on how proceed with this specific step. According to the following link http://help.sap.com/saphelp_nw04s/helpdata/en/08/5744b84ae611d1894f0000e829fbbd/content.htm , the following steps are necessary:
       1.      Take a backup (online or offline) of the data files of the production database
       2.      Create a control file at the production site to be used at the standby site, by entering the following command:
alter database create standby controlfile as <filename>
       3.      Archive the current online redo log of the production database, by entering the following command:
alter system archive log current
       4.      Transfer the backed up data files, the control file and all archived redo log files to the standby site.
Regarding the above step u201C4u201D... Could someone please detail me what all the data files are? As per SAP System Copy guide in its section u201CRestoring Database Files on the Target Systemu201D the following is indicated...and I think these are the files to transfers to the standby db.
Files/oracle/<DBSID>/sapdata<x>
All files/oracle/<DBSID>/origlog<x>
All files/oracle/<DBSID>/mirrlog<x>
Is my assumption correct?
Please let me know which the correct steps are and if any other process is applicable or advisable over the above mentioned....let me know.
Regards

Hi,
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Hope you have created a parameter file for the standby database and changed the primary parameter file as part of preparation of primary database.
Here is a sample entry you have to have on standby parameter file apart from other entries..
db_unique_name='STANDBY'
fal_client='STANDBY'
fal_server='PRIMARY'
log_archive_config='DG_CONFIG=(PRIMARY,STANDBY)'
Also browse through the following threads...it may help..
Re: Standby server - WAIT_FOR_GAP error
Re: Hot DR site preparation
Regards,
Anish

Data guard role transition problem

Hi,
I am trying to do a switchover using the data guard broker cli and get the following error:
DGMGRL> switchover to "TGDRDB01"
Performing switchover NOW. Please wait...
Error: ORA-16775: Target standby in switchover operation has missing redo logs.
Failed.
Can not proceed to switchover. Primary is still "TGDB01".
The drc log file shows a bit more info:
DG 2005-12-01-17:17:43 2000000 3 574466141 DMON: chief lock convert for switchover
DG 2005-12-01-17:17:43 0 2 0 Executing SQL [ALTER SYSTEM ARCHIVE LOG CURRENT]
DG 2005-12-01-17:17:54 0 2 0 SQL [ALTER SYSTEM ARCHIVE LOG CURRENT] Executed successfully
DG 2005-12-01-17:18:17 0 2 0 ORA-16775 Error: the target standby database has 338 redo log(s) missing. Cannot proceed with the switchover operation.
DG 2005-12-01-17:18:17 2000000 3 574466141 Operation CTL_SWITCH cancelled during phase 0, error = ORA-16775
What i don't understand is the bit about 338 redo logs missing becuase the output from "archive log list" on both databases is as follows:
Primary
SQL> archive log list
Database log mode Archive Mode
Automatic archival Enabled
Archive destination /home/oracle/admin/TGPROD/archive
Oldest online log sequence 3091
Next log sequence to archive 3093
Current log sequence 3093
Standby
SQL> archive log list
Database log mode Archive Mode
Automatic archival Enabled
Archive destination /home/oracle/admin/TGPROD/archive
Oldest online log sequence 3091
Next log sequence to archive 0
Current log sequence 3093
Any help will be gratefully recieved as I'm stumped! Found a note for the original oracle error on here that said try switching logfiles a couple of times then trying again - which suffices to say didn't work. I don't understand where it gets 338 missing redo logs from!?!?
Oh and oracle version is 10.1.0.3....
thanks in advance.
regards,
Mark

Yes, it'll be waiting for these archive till he gets them.
If you see the files at system level, then cancel the MRP and apply them manually. If those files are missiong, then stop MRP and propagate hot backups from your primary db to the standby db, then reactivate the MRP. This will resync the databases.
Regards,
Yoann.

Active/Standby Configuration in CWLMS

Hi,
I have 2 LMS Server's in my LAN. I want 1 server will be Master & the other will be in Standby mode.
Whether, such type of configuration is possible in CWLMS??
I am using CWLMS version: 3.1
Rgds,
Partha

I don't think that LMS has a feature for HA installation.
You will find that in the document
http://www.cisco.com/en/US/prod/collateral/netmgtsw/ps6504/ps6528/ps2425/ps7196/prod_white_paper0900aecd80695cad.pdf
on page 20 in chapter "7.1 Redundant-Server Scenario".
But there is an solution with two identical servers, one as master and the other as slave.
Details you will find in the document.

Database standby configuration using Intel and Risk processors

Hi
We are planning to configure a standby database, but we want to use a DELL 2950 server with processors Intel. Our primary database version is Oracle RAC 10gR2 10.2.0.3 64 bits (the standby server has the same oracle version) with two nodes using IBM P550 boxes with processors P6 (RISK) server. Both databases (primary and standby databases) have Linux Red Hat 4 – 64 Bits. But I don’t know if is possible to make this configuration, could you tell me about it.
Thanks

Thanks a lot for your help.
I’ll start with the configuration. Our client decided to use that server (Intel proccesor) as standby server, he knows the possible performance degradation

Switchover between primary RAC and standby single instance

Hello All,
I am using Oracle 11gR2.
I am trying to do a switch over between primary database (RAC 2 nodes) and physical standby (single instance)
If my Primary is single instance i was following the below steps:
On the standby
ALTER DATABASE RECOVER MANAGED STANDBY DATABASE USING CURRENT LOGFILE DISCONNECT;
On the primary database:
alter database commit to switchover to standby with session shutdown;
shutdown immediate;
startup nomount;
alter database mount standby database;
On the standby again:
alter database commit to switchover to primary WITH SESSION SHUTDOWN;
On the new standby:
ALTER DATABASE RECOVER MANAGED STANDBY DATABASE USING CURRENT LOGFILE DISCONNECT FROM SESSION;now, and since my primary is RAC when i am trying switch over I am getting the below error:
SQL> alter database commit to switchover to standby with session shutdown;
alter database commit to switchover to standby with session shutdown
ERROR at line 1:
ORA-01105: mount is incompatible with mounts by other instancesPlus that when I want to apply the remaining steps (below step), should I do it on each instance alone? or is there anyway to do it using the srvctl command:
alter database mount standby database;Regards,

Hi,
Since You are using 2 node RAc as primary, so for switchover operation you need to shutdown
one database instance( Suppose instance 2).
Suppose your node1:
hostname is dcpdb1
and node 2:
hostname is dcpdb2
and standby hostname is drpdb1
So follow this steps for switchover .
How to Switchover from Primary to Standby Database?
Process:
On the primary server, check the latest archived redo log and force a log switch.
*########### Login dcpdb1 as Oracle user #########*
SQL> SELECT sequence#, first_time, next_time
FROM v$archived_log
ORDER BY next_time;
SQL> ALTER SYSTEM SWITCH LOGFILE;
Check the new archived redo log has arrived at the standby server and been applied.
*########### Login drpdb1 as Oracle user #########*
SQL> SELECT sequence#, first_time, next_time, applied
FROM v$archived_log
ORDER BY next_time ;
*########### Login dcpdb2 as Oracle user #########*
SQL> SELECT sequence#, first_time, next_time
FROM v$archived_log
ORDER BY next_time ;
SQL> ALTER SYSTEM SWITCH LOGFILE;
Check the new archived redo log has arrived at the standby server and been applied.
*########### Login drpdb1 as Oracle user #########*
SQL> SELECT sequence#, first_time, next_time, applied
FROM v$archived_log
ORDER BY next_time ;
*########### Login dcpdb1 as Oracle user #########*
SQL> SELECT SWITCHOVER_STATUS FROM V$DATABASE;
SWITCHOVER_STATUS
TO STANDBY
*########### Login dcpdb2 as Oracle user #########*
SQL> SELECT SWITCHOVER_STATUS FROM V$DATABASE;
SWITCHOVER_STATUS
TO STANDBY
*########### Login drpdb1 as Oracle user #########*
SQL> SELECT SWITCHOVER_STATUS FROM V$DATABASE;
SWITCHOVER_STATUS
NOT ALLOWED
*########### Login dcpdb2 as Oracle user #########*
SQL> shutdown immediate
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL>
*########### Login dcpdb1 as Oracle user #########*
SQL> ALTER DATABASE COMMIT TO SWITCHOVER TO PHYSICAL STANDBY WITH SESSION SHUTDOWN;
Database altered.
SQL>
SQL> shutdown immediate
ORA-01507: database not mounted
ORACLE instance shut down.
SQL>
SQL> startup mount
ORACLE instance started.
Total System Global Area 1.5400E+10 bytes
Fixed Size 2184872 bytes
Variable Size 7751076184 bytes
Database Buffers 7616856064 bytes
Redo Buffers 29409280 bytes
Database mounted.
SQL> SELECT SWITCHOVER_STATUS FROM V$DATABASE;
SWITCHOVER_STATUS
TO PRIMARY
SQL>
*########### Login drpdb1 as Oracle user #########*
SQL> SELECT SWITCHOVER_STATUS FROM V$DATABASE;
SWITCHOVER_STATUS
SESSIONS ACTIVE
SQL> alter database commit to switchover to primary with session shutdown;
Database altered.
SQL> shutdown immediate
ORA-01109: database not open
Database dismounted.
ORACLE instance shut down.
SQL>
SQL> startup
ORACLE instance started.
Total System Global Area 1.5400E+10 bytes
Fixed Size 2184872 bytes
Variable Size 7717521752 bytes
Database Buffers 7650410496 bytes
Redo Buffers 29409280 bytes
Database mounted.
Database opened.
*########### Login dcpdb1 as Oracle user #########*
SQL> alter database open read only;
Database altered.
SQL> alter database recover managed standby database using current logfile disconnect;
Database altered.
*########### Login dcpdb2 as Oracle user #########*
SQL> startup mount
ORACLE instance started.
Total System Global Area 1.5400E+10 bytes
Fixed Size 2184872 bytes
Variable Size 7751076184 bytes
Database Buffers 7616856064 bytes
Redo Buffers 29409280 bytes
Database mounted.
SQL> alter database open read only;
Database altered.
SQL> alter database recover managed standby database using current logfile disconnect;
Database altered.
SQL> SELECT SWITCHOVER_STATUS FROM V$DATABASE;
SWITCHOVER_STATUS
NOT ALLOWED
SQL>
*########### Login drpdb1 as Oracle user #########*
SQL> SELECT SWITCHOVER_STATUS FROM V$DATABASE;
SWITCHOVER_STATUS
TO STANDBY
*########### Login dcpdb1 as Oracle user #########*
SQL> SELECT SWITCHOVER_STATUS FROM V$DATABASE;
SWITCHOVER_STATUS
NOT ALLOWED
SQL>
*########### Login dcpdb2 as Oracle user #########*
SQL> SELECT SWITCHOVER_STATUS FROM V$DATABASE;
SWITCHOVER_STATUS
NOT ALLOWED
SQL>
*####################### Finish SwitchOver ########################*
Check
*########### Login drpdb1 as Oracle user #########*
SQL> alter system switch logfile;
SQL>
SELECT sequence#, first_time, next_time
FROM v$archived_log
ORDER BY sequence#;
SQL> archive log list
*########### Login dcpdb1 as Oracle user #########*
SQL>
SELECT sequence#, first_time, next_time, applied
FROM v$archived_log
ORDER BY sequence#;
SQL> archive log list
*########### Login dcpdb2 as Oracle user #########*
SQL>
SELECT sequence#, first_time, next_time, applied
FROM v$archived_log
ORDER BY sequence#;
SQL> archive log list
Thanks
Solaiman
Edited by: 876149 on Apr 12, 2013 11:51 AM

Switchover role transition in a standby configuration

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