We are planning to change the dbname from appr to apdr. Its a DR (Standby Database).
a. NID option will work for this? - DB in mount state (Standby db)
b. Is that possible to change the Instance name also?
c. Any Prerequsities and postrequirments for this change? (ie,Data Broker, communication with Primary and Standby etc?
Oracle 10g, OS - Sun Solaris
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
Is it possible to use oracle dataguard from single instance to RAC instance ? Does Oracle dataguard support this ?
View 1 Replies View RelatedWe are in project design phase and following is the hardware setup:
Database (2 node RAC)-Solaris 10
Application server server (2 server) -Solaris 10
Web server (2 server for Failover)= RHEL
For DR
Database (1 node)-Solaris 10
need to know
1.What are the best practice to implement and to configure DR as Non-RAC physical standby for RAC database server.
2.What are implication if we go for single node except failover node unavailability for DR.
3.What are the steps of Switchover in this case.
4.What's the recommended backup solution for 8-10 Terabyte database
There is a Single Instance production server Oracle 9iR2 [9.2.0.8] OS HP-UX PARISC 11i v1 to RAC.
Now we want to migration this server with minimum downtime to Oracle 11gR2 [11.2.0.2] in RAC environment OS HP-UX 11i v3 Itanium DOwn time must be minimum. what will be the procedure ?
Primary:
2 NODE RAC Cluster/Linux x86-64/11.1.0.7.4 RDBMS
Standby server:
Brand new box, and I installed 11.1.0.6 (software only)
I have a brand new box set-up for a single-instance standby database, and I have installed 11.1.0.6 software only.
Do I need to patch 11.1.0.6 to 11.1.0.7 before I send a copy of the primary over to be set-up as a standby? If so, how do I patch 11.1.0.6 without having a local database in place as this server will only be used for a standby? Can patching the oracle_home only be done?
I am fairly new to Oracle and have recently started learning the basics of Data Guard. I have set-up a Primary 11g database which successfully ships and applies logs to a Single Standby (on the same server) as expected. Manual switchovers work fine; however, I have found a slight problem when performing switchovers using the Data Guard Broker utility.
The switchover is successful- but the broker cannot restart the Primary instance. The strange thing is that when I perform a switchover in the opposite direction (i.e. the new Primary goes back to standby again) it works fine. The error is receive is: ORA-12514: TNS:listener does not currently know of service requested in connect descriptor.
The majority of posts I have seen on this topic seem to point to incorrect listener / tnsnames set up but they have exactly the same values. If both databases are identical, why does it work one way but not the other? I will provide any necessary files to pinpoint where the issue could be.
I am not able to find any document that shows steps to create a SINGLE INSTANCE LOGICAL STANDBY database for a 2 NODE ORACLE RAC database. I have found documents for RAC to Single Instance Physical standby database. But not for Logical Standby.
Details:
OS: Redhat 5
DB: 10.2.0.4(shared file system, not using ASM/Standby also file system)
Status: Single instance physical standby database created, need to convert it to Logical standby.
I have a requirement to change the instance parameter of the primary database and standby in the data guard. Any procedure to do the same. I have to do it directly on production and there is no test set up so I cannot experiment . The procedure I am thinking of is as below.
1. Stop the standby
2. backup the primary
3. Change the parameter and restart to make it effective
4. Start the primary
5. Go to stand by
6. Change the parameter and mount the database.
7. Check if both are in sync and apply logs if not.
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.
How can we Rename or Relocate the SYSTEM datafile?
View 3 Replies View RelatedWe 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.
View 3 Replies View RelatedI am having few confusion on dbname, sid & tnsname.
rman target sys/oracle@suman auxiliary /
In the above command, "suman" is SID or Tnsname or dbname?
Bimistake, in my test database, i tried to change the DBname to suman from sumandb in pfile. After changing, i tried to startup database in nomount pfile but oracle through error that, unable to locate control file. Then, i remove the control files and tried to start database with nomount. Oracle through error about the control file.
This database, i had installed through DBCA. I want to know, where are all places where DBname reside?
Can i start database through pfile even if it is created through DBCA?
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.
i have a problem in renaming the column of a table and it throws a strange error-"ORA-14155: missing PARTITION or SUBPARTITION keyword " ,but i have used correct syntax which is that " alter table temp rename id to num; " where is the problem.
View 2 Replies View RelatedI would like to try to rename a newly created dB. Referring to the topic posted on your website[URL]... had some clarification before executing the dbrename.sql mentioned there:
After modifying the the init.ora and tnsnames.ora, do I have to rename all OLD, existing directory path (for controlfiles, datafiles, etc.) with the new-- meaning I don't have to create another directory for it's 'NEW' name?
I have another question to ask on packages..
I have a dictionary under the schema
OWNERSYS
DIRECTORY_NAMEUTL
DIRECTORY_PATHc:oracleoradataspmap1utl
I have cretaed an external table to read data to a table from a csv file placed in "c:oracleoradataspmap1utl". The csv file name is say "pildata.csv"
I have cretaed a package to read data from the exteranl table and to insert it into a table.
INSERT INTO M_PILEINT SELECT
A.AREA AS "AREA",
A.SUB_FAC_DESC AS "SUB_FAC_DESC",
A.SCOPE_DETAIL AS "SCOPE_DETAIL",
A.MTO_ISSUE_DATE AS "MTO_ISSUE_DATE",
A.MTO_TAKE_BY AS "MTO_TAKE_BY",
A.COMMODITY_CODE AS "SECTION"
A.PILE_NAME AS "PILE_NAME"
FROM M_EXE_PILE A
(where M_EXE_PILE A is the external table which is reading from pildata.csv)
The package runs good and data is populated to M_PILEINT .Is there a way , I can rename the csv file (say to pildata_logxxxx.csv.. something like that) from within the package.Whenever the package is run , it will copy the data from exteranl table and renames the csv file to something else..?
I've 2 schemas namely department, hrNow department schema is having one table EMP . And a view is created on that table with the name R_EMPSchema Name :
departmentTable Name : EMPView Name : R_EMPGRANT SELECT ON R_EMP TO HR ; In HR schema a synonym has been created on view R_EMP with the name R_EMP .CREATE OR REPLACE SYNONYM hr.R_EMP for department.R_EMPSchema Name : hr Synonym Name: R_EMP
Now I want to rename the view name R_EMP to V_EMP from HR schema only So, I tried the folloiwng syntax in HR schema (All the operations should be done from this schema only )[code] RENAME department.R_EMP to department.V_EMP ;
Error: ORA-01765: specifying table's owner name is not allowed[/code] How to change the syntax to make the statement work from HR schema .
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]....
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 ?
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.
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!
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]....
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
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'
I want to be able to name a column created from my query.
Query is:
select A.OrigRef, A.DisplayName, A.ExtCode, count(CalcId)
from OrigRefView A, CalcView B where A.OrigRef = B.NewRef and A.OrigRef like 'AB%'
group by A.OrigRef, A.DisplayName, A.ExtCode
order by A.SusRef
and it returns the Count in "column4" Is there a way I can get the query to output a different column name without creating a whole new table (i.e. not by creating a new table for my query output and then running a new procedure at the end to rename the column...)?
i.e. I want "column4" to read "CountofCalId"
Oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - 64bit Production
PL/SQL Release 11.1.0.6.0 - Production
"CORE 11.1.0.6.0 Production"
Is there any way to rename a column in a table A, so that it is changed wherever it is used, like all the procedures that uses this column, or other tables that has reference to this table A?
My context on our servers is the following one:
- one ASM instance
- X DB instances
- each DB instance uses 2 or more dedicated diskgroups from the ASM instance
- there is one diskgroup named FREEDISK that contains spare disks
On each DB instance you can see:
- the list and global parameters of all diskgroups using v$asm_diskgroup view
- the list and parameters of all disks the instance is using with v$asm_disk view
So my question is: how (if this is possible) to know the list of (spare) disks in FREE DISK disk group?
Our organization has recently decided to go for storage metro cluster solution for disaster recovery. In a Data guard environment, we normally calculate how much archive log is generating and based on that value we calculate the required bandwidth.
For storage metro cluster, we need to find how much block is changing in our primary database, and the same rate of change would apply on DR cluster. Now, i need to give the assumption how much changing is happening in my system. How to calculate the change.
I'm basically experimenting with the concept of replicating data from one instance to the other. Using this thread as a guide, I was wondering if I could create a service on an Apex 4.0 instance, and have an application apex.oracle.com consume that service?
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