Managed recovery vs dataguard

I see some posts the they are not using dataguard and just managed recovery. Could someone let me know what is the difference?. I know only physical / logical standby database (dataguard) and also streams replication.

For example you can create a standby database with Standard Edition and this is not Data Guard since Data Guard is a Enterprise only feature: http://www.databasejournal.com/features/oracle/article.php/3682421/Manual-Standby-Database-under-Oracle-Standard-Edition.htm.
One of the main difference between standby database and Data Guard is that Data Guard allows to manage the standby database in a automatic way only by using SQL statements especially to send redo with LOG_ARCHIVE_DEST_x instance parameter. You can manage a standby automatically without Data Guard but you have to use non Oracle scripts.

Similar Messages

MANAGED RECOVERY AT STANDBY DATABASE REQURING OLD ARCHIVELOGS ORA-00308

Oracle 9.2.0.4
HP-UX 11.11i
The database in Archivelog mode, single standby database in managed recovery
mode.
keeping standby in sync with manual applying the ARCHIVELOG from primary to
standby database.
primary database was 3 REDO log members of 100 MB with 1 member each.
what i did, 1 drop and re-create the INACTIVE REDO group for all three, and
make them
5 REDO logs of 200 MB with 1 member each,
then in order to keep fresh copy of primary database onto standby database, i
send the cold backup after 15 days (last week) with standby controlfile.
now, with that standby controlfile and the database, i can mount the database
but while to open the database, receives messages as , it requiring the
ARCHIVELOGS generated log time ago.
changes the REDO groups from 3 to 5 and size 100 to 200 MB at INACTIVE state
### Workarounds Used ###
SQL> alter database mount standby database;
Database altered.
SQL> alter database open read only;
alter database open read only
ERROR at line 1:
ORA-16004: backup database requires recovery
ORA-01152: file 1 was not restored from a sufficiently old backup
ORA-01110: data file 1: '/user01/oracle9i/oradata/iobasprd/system01.dbf'
SQL> alter database recover automatic standby database;
alter database recover automatic standby database
ERROR at line 1:
ORA-00279: change 1655989696 generated at 08/12/2005 12:46:25 needed for thread
1
ORA-00289: suggestion :
/user02/oracle9i/oradata/iobasprd/archive/archive_16849.dbf
ORA-00280: change 1655989696 for thread 1 is in sequence #16849
ORA-00278: log file
'/user02/oracle9i/oradata/iobasprd/archive/archive_16849.dbf' no longer needed
for this recovery
ORA-00308: cannot open archived log
'/user02/oracle9i/oradata/iobasprd/archive/archive_16849.dbf'
ORA-27037: unable to obtain file status
HP-UX Error: 2: No such file or directory
Additional information: 3
SQL> archive log list
Database log mode Archive Mode
Automatic archival Enabled
Archive destination /user02/oracle9i/oradata/iobasprd/archive
Oldest online log sequence 53052
Next log sequence to archive 53056
Current log sequence
53056
-----------------------AlertIOBASPRD.log----------------------------
alter database mount standby database
Mon Oct 24 12:05:05 2005
Successful mount of redo thread 1, with mount id 3283884781.
Mon Oct 24 12:05:05 2005
Standby Database mounted.
Completed: alter database mount standby database
Mon Oct 24 12:05:12 2005
alter database open read only
ORA-16004 signalled during: alter database open read only...
Mon Oct 24 12:05:23 2005
alter database recover automatic standby database
Mon Oct 24 12:05:23 2005
Media Recovery Start
Starting datafile 1 recovery in thread 1 sequence 52617
Datafile 1: '/user01/oracle9i/oradata/iobasprd/system01.dbf'
Starting datafile 2 recovery in thread 1 sequence 52617
Datafile 2: '/user01/oracle9i/oradata/iobasprd/TBMS_TS_005.dbf'
Starting datafile 3 recovery in thread 1 sequence 52617
Datafile 3: '/user01/oracle9i/oradata/iobasprd/drsys01.dbf'
Starting datafile 4 recovery in thread 1 sequence 52617
Datafile 132: '/user01/oracle9i/oradata/iobasprd/TBMS_TS_002.dbf'
Starting datafile 133 recovery in thread 1 sequence 52617
Datafile 133: '/user01/oracle9i/oradata/iobasprd/TBMS_TS_003.dbf'
Starting datafile 134 recovery in thread 1 sequence 52617
Datafile 134: '/user01/oracle9i/oradata/iobasprd/TBMS_TS_004.dbf'
Media Recovery Log
Media Recovery Log /user02/oracle9i/oradata/iobasprd/archive/archive_16849.dbf
Errors with log /user02/oracle9i/oradata/iobasprd/archive/archive_16849.dbf.
ORA-279 signalled during: alter database recover automatic standby database...
Mon Oct 24 12:06:01 2005
Restarting dead background process QMN0
QMN0 started with pid=9
The snap of alertIOBASPRD.log can understand me that it requiring the
ARCHIVELOG 52617 only
and its lying in LOG_ARCHIVE_DET location also as
$ pwd
/user02/oracle9i/oradata/iobasprd/archive
$ ls archive_5261*.dbf
archive_52610.dbf archive_52613.dbf archive_52616.dbf archive_52619.dbf
archive_52611.dbf archive_52614.dbf archive_52617.dbf
archive_52612.dbf archive_52615.dbf archive_52618.dbf
$
now, even the files are lying , why ORACLE requing the old archive logs ?????

You haven't given any usefuly information on your problem.
show parameter log_archive_dest
show parameter fal
show parameter dg
What errors are in your alert logs ?
What command are you using to recover ?
Check the contents of v$archived_log
# run on primary to detect failures :-
select destination, status, fail_date, valid_now
from v$archive_dest
where status != 'VALID' or VALID_NOW != 'YES';
# run on standby to get exact position of rollforward :-
select thread#, to_char(snapshot_time,'dd-mon-yyyy:hh24:mi'),
to_char(applied_time,'dd-mon-yyyy:hh24:mi'),
to_char(newest_time,'dd-mon-yyyy:hh24:mi') from V$STANDBY_APPLY_SNAPSHOT;
Are you using dataguard broker ?

Managed recovery integrate to oracle restart

Hi
I do have 11gR2 standby database with grid infrastructure. Database and listener are registered to oracle restart. They start automatically.
What do I need to do to automate managed recovery process in oracle restart ?

I do have 11gR2 standby database with grid infrastructure. Database and listener are registered to oracle restart. They start automatically.
What do I need to do to automate managed recovery process in oracle restart ?If dataguard broker configured, MRP will started automatically,
If this is disabled then you have to write a script which calls in profile.

Managed recovery cancel

Hi
When I cancel managed recovery using below command,I still see below messages in standby alert log.
What is the reason for this ?
ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL
RFS[1]: Successfully opened standby log 7: '/dblog01/orclprd/orclprd_stdby_redolog1a.dbf'
Primary database is in MAXIMUM PERFORMANCE mode
RFS[1]: Successfully opened standby log 7: '/dblog01/orclprd/orclprd_stdby_redolog1a.dbf'
Thu Aug 18 10:42:22 2011
Primary database is in MAXIMUM PERFORMANCE mode
RFS[1]: Successfully opened standby log 8: '/dblog01/orclprd/orclprd_stdby_redolog2a.dbf'

Hello John;
if you mean "RFS[1]: Successfully opened standby log 7: '/dblog01/orclprd/orclprd_stdby_redolog1a.dbf'"
I believe that means the apply is now being used with LGWR as the source rather than ARCH.
Also see :
RFS-Messages within alert*.logs in a Dataguard Configuration [ID 1327834.1]
OR if you mean the other message :
On my standby I don't get that : ( I assume you mean "Primary database is in MAXIMUM PERFORMANCE mode" )
TEST for John -- 8-17-2011
Wed Aug 17 21:09:15 2011
ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL
Wed Aug 17 21:09:15 2011
MRP0: Background Media Recovery cancelled with status 16037
Errors in file /u01/app/oracle/diag/rdbms/standby/STANDBY/trace/STANDBY_pr00_15020.trc:
ORA-16037: user requested cancel of managed recovery operation
Recovery interrupted!
Waiting for MRP0 pid 15018 to terminate
Errors in file /u01/app/oracle/diag/rdbms/standby/STANDBY/trace/STANDBY_pr00_15020.trc:
ORA-16037: user requested cancel of managed recovery operation
Waiting for MRP0 pid 15018 to terminate
Wed Aug 17 21:09:16 2011
MRP0: Background Media Recovery process shutdown (STANDBY)
Managed Standby Recovery Canceled (STANDBY)
Completed: ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCELIf I start recovery again :
alter database recover managed standby database disconnect from session;
Wed Aug 17 21:14:01 2011
alter database recover managed standby database disconnect from session
Attempt to start background Managed Standby Recovery process (STANDBY)
Wed Aug 17 21:14:01 2011
MRP0 started with pid=51, OS id=20241
MRP0: Background Managed Standby Recovery process started (STANDBY)
started logmerger process
Wed Aug 17 21:14:06 2011
Managed Standby Recovery not using Real Time Apply
Parallel Media Recovery started with 16 slaves
Waiting for all non-current ORLs to be archived...
All non-current ORLs have been archived.
Media Recovery Waiting for thread 1 sequence 2488
Completed: alter database recover managed standby database disconnect from sessionIf I search the alert log I find "Primary database is in MAXIMUM PERFORMANCE mode" in several spots. But I see no exact pattern to it.
Best Regards
mseberg

Standby Database - from READ-ONLY to Managed Recovery

We have a standby database set up for our production environment.
We are able to switch logfile on production and perform the managed recovery and then switch over to READ-ONLY mode. However, when the database is in READ-ONLY mode...I cannot close it if there are active connections.
There are 2 ways I can attempt to close the database...either by "shutdown immediate" or by issuing an "alter system kill session (##,##);"
If I issue the "shutdown immediate", then the RFS process does not transmit any more files...saying the connection to host is not there. Therefore this is not a valid solution.
I can use an alter system kill...to kill all active connections...but it would require to know what other connections are there.
Does anybody know how to best do this...to close the database by forcing all connections to end (except your current one) so you can "alter database close" and switch over to managed recovery?
Please HELP!
Thanks.
-Nicolas

u just shutdown the server and restart in standby mode. it will apply all pending archive autometically.

Getting error while starting managed recovery

Hi,
I am getting error while starting managed recovery.Please suggest.
Please find below error log
ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT FROM SESSION
Attempt to start background Managed Standby Recovery process (OTP3)
Wed Jun 23 19:24:10 2010
MRP0 started with pid=50, OS id=3350
MRP0: Background Managed Standby Recovery process started (OTP3)
Fast Parallel Media Recovery enabled
Managed Standby Recovery not using Real Time Apply
Warning: Recovery target destination is in a sibling branch
of the controlfile checkpoint. Recovery will only recover
changes to datafiles.
Datafile 1 (ckpscn 296765005228) is orphaned on incarnation#=1
MRP0: Background Media Recovery terminated with error 19909
Errors in file /ora/app/oracle/admin/OTP3/diag/rdbms/otp3/OTP3/trace/OTP3_mrp0_3350.trc:
ORA-19909: datafile 1 belongs to an orphan incarnation
ORA-01110: data file 1: '/ora_ots_gdb1/oradata/OTP3/datafile/o1_mf_SYSTEM_REORG1_.dbf'
Errors in file /ora/app/oracle/admin/OTP3/diag/rdbms/otp3/OTP3/trace/OTP3_mrp0_3350.trc:
ORA-19909: datafile 1 belongs to an orphan incarnation
ORA-01110: data file 1: '/ora_ots_gdb1/oradata/OTP3/datafile/o1_mf_SYSTEM_REORG1_.dbf'
MRP0: Background Media Recovery process shutdown (OTP3)
Completed: ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT FROM SESSION

Hi,
The standby database has been activated previously but since then reverted back into its standby role. Prior to the
RMAN duplicate operation the "alter system reset control_files scope=spfile sid='*';" has not been executed (i.e. the
control files have not been overwritten).
check the incarnation on both the sides i.e primary & standby
list incarnation of database;
RMAN> reset database to incarnation 2;
database reset to incarnation 2
RMAN> exit
hope you can solve by restting the incarnation.
Thanks

Media Recovery Log    DATAGUARD

hi all ,
i have installed 10.2.0.2 databases and configure dataguard. everything works fine but i have 1 problem.
imagine that server 1 is primary ;
when i check on server 1 ; (primary DB)
SQL> archive log list;
Database log mode Archive Mode
Automatic archival Enabled
Archive destination            /u01/app/oracle/archive/SID
Oldest online log sequence 215
Next log sequence to archive 218
Current log sequence 218
server 2 ( Standby server )
SQL> archive log list;
Database log mode Archive Mode
Automatic archival Enabled
Archive destination            dgsby_Stan
Oldest online log sequence 216
Next log sequence to archive 0
Current log sequence 218
on the alert_log of stanby server , it locate the archived logs from primary on */u01/app/oracle/product/10g/dbs/* not on */u01/app/oracle/archive/SID*
Primary database is in MAXIMUM AVAILABILITY mode
Standby controlfile consistent with primary
RFS[6]: Successfully opened standby log 5: '/u02/app/oracle/oradata/SID/stdby_log01_1.log'
Mon Dec 19 13:16:28 2011
Media Recovery Log /u01/app/oracle/product/10g/dbs/dgsby_Stan1_217_767463156.dbf
Media Recovery Waiting for thread 1 sequence 218 (in transit)
Mon Dec 19 13:16:31 2011
Recovery of Online Redo Log: Thread 1 Group 5 Seq 218 Reading mem 0
Mem# 0 errs 0: /u02/app/oracle/oradata/SID/stdby_log01_1.log
if i do switchover i faced with same reverse situation ; ( old primary acts like the old standby and old standby acts like old primary db )
i have already set log_archive_dest_1 on both server.
i want both standby and primary db locates the archive logs on */u01/app/oracle/archive/SID* not on */u01/app/oracle/product/10g/dbs/*
what do i have to correct this situation ???
thanks

here is the output from standby ;
SQL>
SQL> show parameter standby_archive_dest
NAME TYPE VALUE
standby_archive_dest string /u01/app/oracle/archive/TELE
SQL>
SQL> show parameter log_archive_dest_1
NAME TYPE VALUE
log_archive_dest_1 string location="/u01/app/oracle/arch
ive/SID", valid_for=(ONLINE_L
OGFILE,ALL_ROLES)
log_archive_dest_10 string
SQL> show parameter log_archive_dest
NAME TYPE VALUE
log_archive_dest string
log_archive_dest_1 string location="/u01/app/oracle/arch
ive/SID", valid_for=(ONLINE_L
OGFILE,ALL_ROLES)
log_archive_dest_10 string
log_archive_dest_2 string location="dgsby_Stan", valid_
for=(STANDBY_LOGFILE,STANDBY_R
OLE)
log_archive_dest_3 string
log_archive_dest_4 string
log_archive_dest_5 string
NAME TYPE VALUE
log_archive_dest_6 string
log_archive_dest_7 string
log_archive_dest_8 string
log_archive_dest_9 string
log_archive_dest_state_1 string ENABLE
log_archive_dest_state_10 string enable
log_archive_dest_state_2 string ENABLE
log_archive_dest_state_3 string ENABLE
log_archive_dest_state_4 string enable
log_archive_dest_state_5 string enable
log_archive_dest_state_6 string enable
NAME TYPE VALUE
log_archive_dest_state_7 string enable
log_archive_dest_state_8 string enable
log_archive_dest_state_9 string enable

Restoring a Data Backup Made With HP Recovery Manager - Recovery Manager has Since Been Removed

My system (Pavilion dm4 notebook, Win 7 Home Premium x64)) is working fine but I would like to restore a data backup made with HP Recovery Manager. HP Recovery Manager has since been removed from the system and I do not have a recovery disk. I tried installing sp45415 which supposedly runs a silent installer for Recovery Manager, but it silently fails on my system. The accompanying notes say it is applicable to Windows 7 computers and to Pavilion dm1 and dm3. There is no mention of the dm4. Is there some trick to getting sp45415 to run correctly? Is there somewhere I can download an installation package for HP Recovery Manager that works on the Pavilion dm4? Is there any other tool that can restore the backup made by HP Recovery Manager? Thanks!

If you uninstalled Recovery Manager it likely removed the recovery files in the recovery partition.When those files are removed-no download of Recovery Manager is going to install. You will need Recovery Media to boot from to restore the recovery partition and files. If you did not make Recovery Media you will have to order from HP. As for the files you are trying to restore- If this was a backup of personal files,photos,etc to external hard drive or dvds there should be one .exe file inside those files-probably Restore.exe or Recover.exe. Double clicking the .exe will extract the files to a folder on the hard drive of your laptop.

User Managed Recovery Scripts

I have searched on the internet but to no avail.
I currently perform hot backups with User Managed Scripts. I was able to write these scripts from a book that I have on my desk.
Can someone show me how to restore a 9i Database with User Managed Scripts? No! The book I have purely discusses Restoring a Database using RMAN. We are not using RMAN here!
Or is there somewhere on the net that will show how to write the User Managed Scripts to restore a database or atleast show the commands I need perfrom?

I have searched on the internet but to no avail.
I currently perform hot backups with User Managed
Scripts. I was able to write these scripts from a
book that I have on my desk.
Can someone show me how to restore a 9i Database with
User Managed Scripts? No! The book I have purely
discusses Restoring a Database using RMAN. We are not
using RMAN here!
Or is there somewhere on the net that will show how
to write the User Managed Scripts to restore a
database or atleast show the commands I need perfrom?U can search in google for complete scripts.U can also use OS scripts for restore operation.Are u looking for command which restore ur backup or recover ur database with hot backup.In first case u can use OS scripts or OS copy command for restoration purpose ,In second case , U are recovering ur database with hot backups , so , u must have to have Archivelog files and apply on it.
Thanks
Tinku

Password Manager recovery / migration

Hi There,
Recently my T61 died but I was able to recover the harddrive. How can I retrieve the password manager data and import it into my new laptop? Also the new laptop (W530) has a newer version of the Client security / Password Manager running. I read somewhere that you could export the data set from the application and then import it into the new PC. Unfortunately exporting is not longer possible since the hardware it ran on is history. Any help appreciated.
Peter

It's not possible unless you can get password manager running on the old system to do the export.

User Managed Recovery vs RMAN Managed Recovery

Is there any difference in this or just a misnomer?

They are used for the same purpose as their name implies. You can use one or the other. There are some minor differences, like being not able to use the cancel option in rman as I have said previously. But you can do what "cancel" does by using log sequences in rman, etc...
So you need to read both chapters in the related manual.

Hi..i want to format only c drive using hp recovery manager.

My notebook belongs to Presario V3000 series and has Vista OS.
I want to format only C drive without lsing data on other drives, using HP recovery manager.
Please let me know which option to choose under Advanced Options in HP recovery manager.

Recovery manager has changed over the years, what options are available?

Is the recovery techniques for RMAN and user managed are different

Hi Gurus,
I want to know the exact difference b/w RMAN and user managed recovery.
Is the difference is too much or if we know the user managed recovery,can we do the recovery using the RMAN...
Regards,
pradeep

user6738165 wrote:
Hi Gurus,
I want to know the exact difference b/w RMAN and user managed recovery.
Is the difference is too much or if we know the user managed recovery,can we do the recovery using the RMAN...
Regards,
pradeepHi Pradeep and welcome to the forum
I'd suggest you to check the Oracle Documentation to find out the difference by yourself
RMAN Recovery Concepts
http://download.oracle.com/docs/cd/B19306_01/backup.102/b14191/rcmconc2.htm#i1007882
Performing User-Managed Recovery
http://download.oracle.com/docs/cd/B19306_01/backup.102/b14191/osrecov.htm#BABBBBBB
RMAN has great advantages over the User-Managed techniques. RMAN uses it's own RMAN commands to perform backup or recovery, while with user-managed backup and recovery you use SQL commands
By knowing the main backup and recovery concepts, you can perform both

Datafiles Mismatch in production & disaster recovery server

Datafiles Mismatch in production & disaster recovery server though everything in sync
We performed all the necessary prerequisites & processes related to DRS switchover successfully also our DRS server is constantly updated through logs application in mount state whan we opened DRS database in mount state it opened successfully however when we issued command
Recover database
It dumped with foll errors:
ora-01122 database file 162 failed verification check
ora-01110 data file 162 </oracle/R3P/sapdata7/r3p*****.data>
ora-01251 unknown file header version read for file 162
as I do not remember the exact name now
However upon comparing the same file at production(which was now in shutdown state) the file sizes were mismatching so we went ahead to copy the datafile from production to DRS in database shutdown state at DRS through RCP utitlity of AIX 5.3 since our Operating system is AIX 5.3
Though this remote copy was success
we again started database in mount state & issued command
Recover database
But still it dump the same error but now for another datafile in DRS
I mean I would appreciate if somebody could point out that despite our DRS was constantly being updated through our Production in terms of continuous log application before this activity logs were sync in both the systems also origlos,mirrorlogs & controlfiles were pulled from production system as it is infact the whole structure was as replica of production system , then why did datafile sizes mismatch??
Details
SAP version :- 4.7
WAS :- 620
Database :- Oracle 9.2
Operating system :- AIX 5.3

I am in a process of DR Planning.
My present setup :
O/S : HP-UX 11.31
SAP ECC 6
Oracle 10g Database.
I know about dataguard and i have implemnted same on our other application but not for SAP.
I have ame doubts and I request you to please guide me for the same.
1. SAP License key -- it required hardware key. So will i have to generate license key another hardware key i.e. for machine where standby database.
2. Database on standby site will be in manage recovery mode. Will I have to make any changes or any other file realted to SAP on standby host ? (some i know such as I upgrade SAP kernal, same i have to upgrade at standby host)
Will you give me some link related to document for DR

Dataguard standby DB error

Hi,
Version is 10.2.0.3 on Linux x86_64. I have a test environment where i have setup a dataguard in MAX AVAILABILITY mode. It has only a single standby database. It was working as expected but recently i have shutdown immediate the primary database with out cancelling the MRP and shutting down the Standby database before. Now, i was able to bring up the primary database but my standby database throws these errors in the alert log .....
RFS[600]: No standby redo logfiles of size 309600 blocks available
RFS[600]: No standby redo logfiles selected (reason:7)
Tue May 20 18:12:45 2008
Errors in file /opt/oracle/admin/testdb/udump/testdb_rfs_3456.trc:
ORA-16086: standby database does not contain available standby log files
The primary database alert log shows the following error...
ORA-16086: standby database does not contain available standby log files
Wed May 21 13:42:34 2008
LGWR: Failed to archive log 1 thread 1 sequence 456
Thread 1 advanced to log sequence 457
I researched a bit on metalink but all i could find was to "add more standby redo log files". I have STANDBY_FILE_MANAGEMENT set to AUTO.
Can anyone suggest me how to go about this one
Thanks in advance.
Harris.

Hi,
I can't think of any reason why your standby logs would have vanished. I suspect that if you scan up through your alert log to the last time the standby was restarted you will see the same errors (i.e. I think they have always been missing).
The standby redo logs are used by dataguard when its configured in lgrw mode rather than arch. There's a good explanation of the differences between the two modes here:
http://www.oracle.com/technology/deploy/availability/htdocs/DataGuardRedoShipping.htm
To add some standby redo logs, take your standby out of managed recovery:
alter database recover managed standby database cancel;
Then add the logs using the following command:
alter database add standby logfile group <number> ('<filename>') size <size>;
It's also worth adding identical logs to the primary database, in case you need to switch-over.
Cheers,
Andy Barry
http://www.shutdownabort.com

Managed recovery vs dataguard

Similar Messages

Maybe you are looking for