1.What are the basic things we need to analyze before we recommend the business to go for oracle Dataguard for DR setup?
2. Do you know any technology that will replicate the schema from one datacenter[one primary database ] to another datacenter [secondary or replication database]?
3. What are the various option to configure the disaster recovery plan at schema level?
Do we have any plan to create DR ( disaster site) for ORACLE 10G standard version. Since, Data Guard is not available with Standard version, can we have any another plan for the same.
View 5 Replies View RelatedWe have an Oracle application 12.1.1 running with oracle database 10.2.0.4 and we're using HP-UX itanium 11i v3 servers for both application and database, our requirement is to establish a Disaster Recovery site out of our building to ensure data protection.
What is the best option we can use to reduce the cost and to implement the DR site? can we use data guard ? and will be the configurations and requirements for it?
I have a SAN systems with primary and secondary interfaces. i need to know what is best practice of oracle to use disaster recovery features, with automatic or manual failover concept.
example.
Primary Server Duty Station 1 New York
Secondary Server Duty Station 2 Los Angelous
requirement : If primary server in DS 1 gets fire and completed get down then secondary server DS 2 should become primary server and reply to client request with AUTO or Manual failover concept.
I am new to Oracle and a beginner in Data Guard.
1) How to find archive log gap from Primary Database site?
2) Do I need the DB_UNIQUE_NAME when setting the LOG_ARCHIVE_DEST_2 ? What is the purpose of DB_UNIQUE_NAME in LOG_ARCHIVE_DEST parameter?
3) If archivelog gap happens standby db goes out of sync with the primary database. What does out of sync actually mean?
4) Primary DB knows where to transport redo data based on the location mentioned in LOG_ARCHIVE_DEST_n of Primary DB. Am I correct in my understanding?
We have dataugard set up on linux with oracle10.2.0.1.0 and now we want to upgrade that complete setup (primary, standby, dataguard broker) to 11.2.0.3.0.
View 1 Replies View RelatedWe have a request to configure data guard for databases on the production server. Here is my situation:
We have a backup strategy in place where the backups are being taken on a regular basis. Archive logs are deleted as soon as they are backed up.
My question now is , is there a way of configuring the Data guard in such a way that there would be no change to existing backup strategy (RMAN) and still duplicate the archive logs to another destination and not delete the archive logs by RMAN backup process on that destination while the first destination is deleted.
We will be deleting the logs in the second archive destination using a script which checks if the logs were applied.
Can i setup physical standby without RMAN? I want to create a fresh single physical standby without RMAN .. If i copy all files in another system and take the controlfile from primary as alter database create controlfile for standby ... and fill all the gaps with archives.. Should it work ? i am on 10G Rhel 4 linux.. and both machines would have same config
View 12 Replies View RelatedHow much bandwidth required to setup Active data Guard? How to measure bandwidth requirement from primary site? Any ML or doc would be great.
View 1 Replies View RelatedWe are planning to have new installation of 11GR2 and would like to create data guard for this system. I have one server in Houston and other in Austin TX. the OS will be Windows 2008 R2.
How can i set up data guard and what is the requirements?
i want to configure my present Data Guard Setup with Enterprise Manager...and on the Enterprise Manager grid control page i am not seeing any Data Guard option.....i am using oracle 10gR2 and Windows XP.
How to use enterprise manager for configuring Data Guard.
in a RAC multi-node environment with single instance dataguard..Recovery is not running automatically I have to re-run the recovery command to make them sync and this command works for already archived log files no upcoming archive log file applied I have to re-run the recovery command again for newly archived log files.
View 2 Replies View RelatedI have done the configs as per the guide here [URL] .... This is a physical standby db
Primary initBP1.ora
compatible = "11.2.0"
log_archive_dest_1 = "LOCATION=H:oracleBP1oraarchBP1arch VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=BP1"
log_archive_dest_2 = "SERVICE=BP1_DR VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE)
[code]...
How I do I make sure that the DR site is recovering automatically ?
My standby database was working fine which was running in maximum performance mode .Suddenly i found that logs are not being applied though archived logs are received from primary database.i issued the command in mount mode: alter database recover managed standby database disconnect from session;
altered database this command runs successfully. but MRP process in not initiated which i confirmed with the query (select process,status from v$managed_standby;)
i have done oracle data guard between two databases (database A is the primary) and (database B is the standby), and it was working fine for two weeks, then the network admin did some changes on the firewall on standby side, which made the primary database can not write on standby redo log , so archives was generated on primary and do not generated on standby by, now we solve the firewall probelm and new archives generated on primary is generated on atandby too, but now i have a gap in archives on standby database and standby database now is not synchronized with primary database, and data changes happen on primary is not reflected on standby, also archives that were generated on primary and did not generated on standby during the problem time is not registered in V$ARCHIVED_LOG neither on primary database nor on standby database
View 1 Replies View RelatedI'd like to stop Recovery in specific time. For instance ; My db works Day-1 and Every day Recovery starts 20:00 and finish 05:00. If it is possible that when DB time reach to sync 03:00, I'd like to stop recovery.
DB version Oracle 10.2.0.5 .....
I have created dataguard between two instances hosted in two different servers. I have done switchover from primary to standby & then again standby to primary with DGMGRL utility.
1- When I done switchover to primary & trying to open standby database in readonly mode it was giving below error-
ORA-01154: database busy. Open, close, mount, and dismount not allowed now
Why this error was coming ?
2- As I was not able to open standby database in read only mode, I have executed below command-
alter database recover managed standby database disconnect from session;
which return an error as-
ORA-01153: an incompatible media recovery is active
After this I have executed-
alter database recover managed standby database cancel;
which executed successfully.
& then after standby database open in read only mode.
Why above error was coming ?
3- After this I had tried to check the checkpoint_change# & controlfile_change# from primary database and result shows both number were different.
Why they are not matching ?
i have found an issue regarding log archiving on dest1. yesterday one sequence number 76871 not archive to dest1.alert logfile content as follow. i configure standby and ship archive manually with window copy command. i need this archive to complete recovery on standby database.
Mon Oct 21 09:29:28 2013
ARC2: Completed archiving log# 3 seq# 76869
Mon Oct 21 09:39:28 2013
Thread 1 advanced to log sequence 76871
Current log# 2 seq# 76871 mem# 0: D:ORACLEORADATAORC1REDO02.LOG
[code]....
I noticed that my standby server was behind the prduction one.In the error log I noticed: ORA-00600: internal error code, arguments: [kcbr_apply_change_11], [], [], [], [], [], [], [], [], [], [], []
then
MRP0: Background Media Recovery terminated with error 448
Recovered data files to a consistent state at change 286116915
This error happens in sequence: Recovery of Online Redo Log: Thread 1 Group 4 Seq 8830 Reading mem 0I found this archive log in standby and it is same size as in the production one.
oracle version: 10gr2
os:windows 32
I have configured a physical standby database.
I have set the physical standby database to open read mode for a short while.
according to [URL] in order to set db in for from open read-only to applying redo data
Quote:
To change the standby database from being open for read-only access to performing Redo Apply:
Terminate all active user sessions on the standby database. Restart Redo Apply. To start Redo Apply, issue the following statement:
SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE
2> DISCONNECT FROM SESSION;
To enable real-time apply, include the USING CURRENT LOGFILE clause:
SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE
2> USING CURRENT LOGFILE;
this is what happen
SYS@ngdr> alter database recover managed standby database disconnect session;
alter database recover managed standby database disconnect session
*
ERROR at line 1:
ORA-00274: illegal recovery option SESSION
SYS@ngdr> alter database recover managed standby database using current logfile;
okay since I encountered the illegal recovery options session, I decided to use alter database recover managed standby database using current logfile; now the session seems to be hanging forever.
How to find applied_time in standby database managed recovery mode (*PHYSICAL STANDBY*).
View 3 Replies View Relatedm trying to create replications of data from the M.V. site. to master site
/* AT MASTER SITE */
1. MASTER REPLICATE GROUP
2. MASTER REPLICATE OBJECT
3. REPLICATION SUPPORT
4. REPLICATION ACTIVITY
5. M.V. LOG
/* AT M.V. SITE */
1. MATERIALIZED VIEW (M.V)
2. DBMS_REFRESH.MAKE (REFRESH GROUP)
AND I AM NOT ABLE TO CREATE
1. CREATE_MVIEW_REPGROUP
2. CREATE_MVIEW_REPOBJECT
IN M.V. SITE , and i am getting following error while creating REPGROUP
CODE
SQL> BEGIN
2 DBMS_REPCAT.CREATE_MVIEW_REPGROUP (
3 gname => 'emp_repg',
4 master => 'orc1',
[code]..
Oracle 10gR2 on red hat.
I have an application that writes blobs via pro*c. It is running at several sites without errors for a few years now. One of the newer sites has started reporting "ora-01578 ORACLE data block corrupted".
I've tried using rman backup validate - it does not report any errors.
I've tried using rman restore and recover to correct the problem.
I've tried deleting the file with the corrupt block and using rman restore and recover to recreate it.
In any of the above cases, I do not see any errors being encountered, and when I restart the application, it works for a while and then starts reporting "ora-01578 ORACLE data block corrupted".
I've had the client do a physical check of the disk and it indicated the media was okay.
We've failed over to the standby system, so I have a wee bit of breathing room - but I'm going to be away for 4 days and will have to get back on this when I get back. I'm a little puzzled that I can fix it for a short while and then it breaks again.
We 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 RelatedControlling 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.
How to setup the database for automated RMAN backup. like if we want to have a backup exactly at 8:00 PM IST. So how to configure it.
View 6 Replies View RelatedAny way to setup Data Pump Export timeout on resumable error (like with classique export). Seems that default timeout is 2h (7200s).I have tried to set system parameter 'resumable_timeout' from 0 to 60 but no change.
I would like to script an export, but I just want that the script exits on errors like this one:
ORA-39171: Le travail se heurte à une attente avec possibilité de reprise.
ORA-01691: impossible d'étendre le segment LOB SYS.SYS_LOB0000145352C00039$$ de 128 dans le tablespace SYSTEM
Actually, the script have to wait 2h for expdp timeout.
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]....
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
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 ?