Primary and primary physical Standby with an incomplete configuration
What could be difficulties if the primary database is not the FAL_CLIENT configured on the primary database to point to itself?
I understand that you must have on the primary:
fal_server = < physicalStandby > and
fal_client = < primaryDatabase > don't default fal_client in primary?
Good point.
fal_server =
fal_client =
And then pass them after a failover of coherence and transparency. Thanks Marshall!
Tags: Database
Similar Questions
-
Problem creating physical standby with RMAN
Hi guru
Perhaps this impact that all face you when creating physical standby DB. I'm trying to create a physical standby database Using RMAN double order a server
(pri machine) machine on standby.
Here are the steps I followed to create the above:
Step 1:-activate forced logging
SQL > ALTER DATABASE FORCE LOGGING;
Step 2:-set up a standby Redo Log
SQL > ALTER DATABASE ADD STANDBY LOGFILE GROUP 10
2 > ('/ oracle/dbs/log1c.rdo','/oracle/dbs/log2c.rdo') SIZE 500 M;
Step 3:-set the parameters of primary database initialization
SQL > create pfile='?/dbs/pfileorcl.ora' of spfile;
Edit the pfile to add the sleep settings, shown here:
db_unique_name = "orcl".
LOG_ARCHIVE_CONFIG = 'DG_CONFIG = (ORCL, orcldr)'
LOG_ARCHIVE_DEST_2 = "SERVICE = orcldr LGWR ASYNC VALID_FOR =(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME = orcldr'"
* .fal_server = orcldr
* .fal_client = orcl
* .standby_file_management = auto
Step 4:-activate archiving
SQL > SHUTDOWN IMMEDIATE;
SQL > STARTUP MOUNT;
SQL > ALTER DATABASE ARCHIVELOG;
SQL > ALTER DATABASE OPEN;
Step 5:-tnsnames for eve of the configuration database
This should be done on the primary database to edit tnsnames.ora or using the command NetCA and create by the name orcldr
orcldr =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP) (HOST = Eve-svr)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcldr)
)
)
Step 6:-backup of database and copy it to standby mode
This backup script must be run on primary and copied to sleep on the same mount point, run these scripts with RMAN, all files in /rman_backup need to be copied in /rman_backup on the standby server.
$rman target.
RMAN > run
{
allocate channel c1 type disk;
allocate channel c2 type disk;
backup of database format ' / rman_backup/%U';
ARCHIVELOG backup all the format ' / rman_backup %U ';
backup current controlfile to Eve format ' / rman_backup/%U';
}
Step 7:-availability of measures database
Installation of Oracle software
This should be the same version and patch group with exactly same ORACLE_HOME mount point.
Commissioning of the listener
Create and start a listener on the database of sleep by using NetCA, or create listener.ora in $ORACLE_HOME/network/admin
LISTENER =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP) (HOST = Eve-svr)(PORT = 1521))
)
Step 8:-set of backup database initialization parameters
Copy the pfile file created in the database primary it renames in initorcldr.ora and change these settings:
db_unique_name = "orcldr".
LOG_ARCHIVE_CONFIG = 'DG_CONFIG = (orcldr, ORCL)'
LOG_ARCHIVE_DEST_2 = "SERVICE = orcl LGWR ASYNC VALID_FOR =(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME = orcl'"
* .fal_server = orcl
* .fal_client = orcldr
*. LOG_ARCHIVE_DEST_STATE_2 = 'ENABLE '.
Step 9:-installation tnsnames for the primary database
This should be done on the pending change tnsnames.ora or using the command NetCA database and create it in the name orcl
ORCL =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP) (HOST = primary-svr)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
Step 10:-copy a password file
A password file must be created on the primary and copied to the standby site. The sys password must be the same on both sites. Copy orapworcl in $ORACLE_HOME/dbs and rename the file in orapworcldr
Step 11:-create for Oracle mount points
Mount point must be created on the standby server with the same convention used in primary education, which includes the location for controlfiles, redo logs, data files, destination of the newspaper Archives and alert logs.
$ mkdir Pei/u01/app/oracle/oradata/orcl /.
$ mkdir Pei/u01/app/oracle/flash_recovery_area /.
$ mkdir Pei/u01/app/oracle/admin/orcl/adump
$ mkdir Pei/u01/app/oracle/admin/orcl/bdump
$ mkdir Pei/u01/app/oracle/admin/orcl/cdump
$ mkdir Pei/u01/app/oracle/admin/orcl/udump
Step 12:-use RMAN to restore the backup and standby configuration
Connecting to RMAN and run the following command to create the database pending, this must be performed on the standby server after the backup copy and the tnsnames parameter.
$ export ORACLE_SID = orcldr
$ rman target sys/tiger@orcl auxiliary sys/tiger@orcldr
RMAN > target double standby database dorecover;
Here, I'm getting problem such as:
While he was trying to connect to databases traget and auxiliary, I noticed that when RMAN is connected across the two databases it shows
ORCL (DBID xyz)
ORCL (unmounted)
Here, in my opinion the second database must be the name of the standby database or auxiiary db name is Eve db which is orcldr in my case
After this issue, I am faced with the second issues such as:
in command
target double standby database dorecover;
After you change the command to
RMAN > duplicate target database "sleep."
RMAN-05520 database name mismatch
Can u please let me know where I can be wrong
Finally I have the problem after all this googling and thinking the same thing.
Thanks to you all
-
logical standby local and remote physical standby
Dear all,
My version of the database is 10.2.0.1.0 (production) and the x 86-64 OS Version Red Hat Enterprise 4 Linux operating system
Here's my configuration details:
Rprimary database: two-node RAC
LOCAL database backup database: autonomous
Database watch remotely: two node RAC
So, my question is, I want my local DR physical to convert logical standby and
Remote DR will work as physical sleep as it IS.
SQL > EXECUTE DBMS_LOGSTDBY. BUILD
Will after running the statement above in my primary database production there be any performance HIT.
And another important thing is that my statement above, should not affect my remote physical Dr.
Just the local DR should get converted to logic of the standby database
Thanks and greetings
Yvon DasYvon says:
Mr President, thank you very much for your answer...Actually in my case I want to be a logical and physical database to aid in total. What I'm trying to tell you, it's that.
We have already two CARS physical distance DR nodes and a physical local autonomous local DR, a * nd we want to convert the local logical physical DR DR *, * this means I want to keep my DR RAC as physical standby*.so, when we will realize the package on the primary database
exec dbms_logstdby.build;
It will cause no problem for my CAR remote physical DR.
Only local DR must be converted into logic.
Thanks and greetings
Yvon DasPublished by: Yvon March 4, 2013 12:17 AM
I understand your question completely, you can convert logical physical standby standby either locally or remotely. By running the package it will not impact any performance on the primary production database. By running the package SQL apply will be activated.
There will be no problem with it. Again, you can have physics or logic of Eve in the same configuration of data protection. -
Set - up physical Standby with RMAN
Hello
I took a database, including the archivelogs with RMAN. After 5-6 hours after the end of the backup, I created the primary as on DB standby control file:
rman target $ /.
RMAN > BACKUP CURRENT CONTROLFILE to STANDBY;
Can I use the FULL existing backup to create a standby DB when the standby control file was created several hours later the backup is complete, or do I need to create a new FULL backup?
Concerning
AingleYes,
My experience on Unix is sooner or later, in the absence of a tape library, you find yourself using NFS.
Be aware that this should be the buffer of NFS 3 + and with a reading and writing of 32767octets.Apart from this, the procedure seems OK.
-----------
Sybrand Bakker
Senior Oracle DBA -
How to check if physical Standby is in phase with the primary
Hi all
I'm new in Data Guard. In our current production, my boss asked me to write a shell scripts for monitoring physical standby and archive primary's sync (gap of archive)
I refer metalink [861595.1 ID], but when I ran the first query to the primary node, the screen lock.
On primary
========
SQL > SELECT THREAD # "Thread", SEQUENCE # 'last generated sequence.
V $ ARCHIVED_LOG
WHERE (THREAD #, FIRST_TIME) IN (SELECT THREAD #, MAX (FIRST_TIME) FROM V$ ARCHIVED_LOG GROUP BY THREAD #)
ORDER BY 1;
I tried to turn on 10046 trace SQL, SQL consume a lot of CPU and it full table scan in X table KCCAL $.
Eye of TKPROF result as below:
Because of this is the production environment, so I had put an end to the session, anyone can teach me or share with me the physical monitor in standby mode scripts is sync with primary or not? Or you encounter the above problem when you run the SQL code?call count cpu elapsed disk query current rows ------- ------ -------- ---------- ---------- ---------- ---------- ---------- Parse 1 0.00 0.00 0 0 0 0 Execute 1 0.00 0.00 0 0 0 0 Fetch 1 88.29 115.59 0 0 0 0 ------- ------ -------- ---------- ---------- ---------- ---------- ---------- total 3 88.30 115.60 0 0 0 0 Misses in library cache during parse: 1 Misses in library cache during execute: 1 Optimizer mode: ALL_ROWS Parsing user id: 80 Rows Row Source Operation ------- --------------------------------------------------- 0 SORT ORDER BY (cr=0 pr=0 pw=0 time=21 us) 0 FILTER (cr=0 pr=0 pw=0 time=19 us) 1124 FIXED TABLE FULL X$KCCAL (cr=0 pr=0 pw=0 time=40537 us) 0 FILTER (cr=0 pr=0 pw=0 time=115538625 us) 1122 HASH GROUP BY (cr=0 pr=0 pw=0 time=115530193 us) 7465972 FIXED TABLE FULL X$KCCAL (cr=0 pr=0 pw=0 time=94648975 us) Elapsed times include waiting on following events: Event waited on Times Max. Wait Total Waited ----------------------------------- Waited ---------- ------------ SQL*Net message to client 1 0.00 0.00 control file sequential read 16841 0.05 30.88 SQL*Net break/reset to client 1 0.00 0.00
My version of db is Oracle 11.2.0.1.0
Thanks in advance.
Kind regards
KlnghauJust be aware that these queries are queries controlfile and if they run too long can get in the road of the database as they hold controlfile locks. You'd better watch the view v$ dataguard_stats the day before and look at the GAL apply and transport.
We are also a few scripts in our book - http://www.amazon.com/Oracle-Guard-Handbook-Osborne-ORACLE/dp/0071621113
Larry
-
Hi all
We plan to set up physics in waiting for our CARS database. Can anyone let us know how config in the case of RAC database? Also after you set up the night before with the protection mode max is possible to change physical Snapshot standby standby for our app objective test team?
RDS,
Varun
Hi Varun,
I recently put in place an environment of two RAC nodes to a custodian of data environment is only a single node. Nothing very special when configuring Data Guard in a CCR environment. The most important thing is that each RAC instance must send waiting for BD archivers.
This setting is configured the destination archive database pending.
Once the archivers reach the Data Guard environment are applied correctly and consistently to the comics of the day before.
You have this MOS score that helps the creative process.
Create a sleep using RMAN Duplicate (RAC or Non-RAC) (Doc ID 1617946.1)
Yes, you can convert the Standby database to a snapshot of BD, are supported read/write operations.
Use the command alter database convert on the eve of the snapshot;
And when people apps to complete the test, convert it to sleep with the command:
ALTER database convert physical standby;
And the standby for the role of sleep and if you turn on the AutoRecover apply all redo it in anticipation of is to apply because you put the backup database into the snapshot mode.
Is very powerful and easy.
I hope to help.
Best regards
Arturo
-
Problem creating a Standby physical database with RMAN
Hi all
I am learning oracle dataguard and as part of the learning process of creation of database on hold.
Platform: V250-fire-Sun Sparc, Solaris 10
Version of database - Oracle 11R2
I create standby database on the same server, so the directory structure is different.
By following the instructions on the site of Oracle, I managed to create a functional physical standby database. But I'm not able to create a database with RMAN backup. Here are the steps that I follow-
1 configure all the required settings on the primary database as done in creating physical standby database manually, for example implementation force of logging, the creation of newspapers ensure etc..
2. settings edited on the primary database file as does everything in manual creation of physical database backup. Some of these changes are –
On the primary database:
*. FAL_CLIENT = "orcl11020" #Primary database unique name
*. FAL_SERVER = "stdby_11" #Standby database unique name
db_file_name_convert ='/ < dir >/oradata/stdby_11 ',' / < dir >/oradata/orcl11020 '
log_file_name_convert ='/ < dir >/oradata/stdby_11 ',' / < dir >/oradata/orcl11020 ',' / < dir > / oradata/stdby_11/redo_mem ',' / < dir > / oradata/orcl11020/redo_mem '
standby_file_management = auto
* .log_archive_config = 'DG_CONFIG = (orcl11020, stdby_11)'
* .log_archive_dest_1 = "LOCATION = / < dir > / flash_recovery_area/ORCL11020/archivelog"
VALID_FOR = (ALL_LOGFILES, ALL_ROLES) db_unique_name = orcl11020'
* .log_archive_dest_2 = "SERVICE = db_unique_name LGWR ASYNC = (ONLINE_LOGFILES, PRIMARY_ROLE) stdby_11 = stdby_11 VALID_FOR'"
*. LOG_ARCHIVE_DEST_STATE_1 = 'ENABLE '.
*. LOG_ARCHIVE_DEST_STATE_2 = 'ENABLE '.
*. LOG_ARCHIVE_FORMAT='%t_%s_%r.arc'
*. LOG_ARCHIVE_MAX_PROCESSES = 30
Copied same pfile standby database and set to date follows.
"* .control_files ='/ < dir > /oradata/stdby_11/stdby_11.ctl','/ < dir > / fra_stdby/stdby_11/stdby_11.ctl".
* .db_name = "orcl1102".
* .db_unique_name = "stdby_11".
*. FAL_CLIENT = "stdby_11."
*. FAL_SERVER = "orcl11020."
db_file_name_convert ='/ < dir >/oradata/orcl11020 ',' / < dir >/oradata/stdby_11 '
log_file_name_convert ='/ < dir >/oradata/orcl11020 ',' / < dir >/oradata/stdby_11 ',' / < dir > / oradata/orcl11020/redo_mem ',' / < dir > / oradata/stdby_11/redo_mem '
standby_file_management = auto
* .log_archive_dest_1 = "LOCATION = / < dir > / fra_stdby/STDBY_11/archivelog"
VALID_FOR = (ALL_LOGFILES, ALL_ROLES) db_unique_name = stdby_11'
* .log_archive_dest_2 = "SERVICE = orcl11020 LGWR ASYNC VALID_FOR = (ONLINE_LOGFILES, PRIMARY_ROLE)
db_unique_name = orcl11020'
3. Add the relevant information in tnsnames.ora and listener.ora files and restart the listener.
3 created the file password with the same credentials as database primary.
4.up - to-date RMAN backup primary database available.
5. create controlfile standby with rman
While the primary database s open (I tried with a primary database in montage mode as well).
$> rman/paswd@rman for catalog rman target /.
RMAN > BACKUP CURRENT CONTROLFILE TO SLEEP;
6. open a new terminal standby base and start in nomount mode using the settings created - file
$> ORACLE_SID = stdby_11
$> export ORACLE_SID
$> sqlplus / as sysdba
SQL > STARTUP NOMOUNT pfile =' < rental/initfilename.ora '
SQL > quit
$> rman AUXILIARY / target sys/passwd@orcl11020 catalog rman/passwd@rman
RMAN > duplicate TARGET DATABASE ENSURES DORECOVER;
RMAN ends without error but the archive logs is not eliminated. Looking at the newspaper, following caught my eye.
Logging of 1017 errors received on the eve
------------------------------------------------------------
Verify that the primary and standby use a password file
and remote_login_passwordfile shared or EXCLUSIVE.
and the SYS password is the same password files.
error ORA-16191
------------------------------------------------------------
FAL [client, ARC2]: error 16191 connection at orcl11020 for the extraction of the gap sequence
Errors in file /<>dir > / diag/rdbms/stdby_11/stdby_11/trace/stdby_11_arc2_24321.trc:
ORA-16191: customer main newspaper not connected waiting for shipment
Errors in file / < dir > / diag/rdbms/stdby_11/stdby_11/trace/stdby_11_arc2_24321.trc:
ORA-16191: customer main newspaper not connected waiting for shipment
Thus on primary and standby I confirmed
SQL > show parameter remote_login_passwordfile
VALUE OF TYPE NAME
------------------------------------ ----------- ------------
Remote_login_passwordfile string EXCLUSIVE
Make double sure that the password files are the same, I stop databases, delete the password and recreated with the same credentials.
Password files are called - orapworcl11020 and orapwstdby_11
Can someone guide me where thisngs wrong here please.How did you create your file of passwords on the rescue system?
I will consider your entire post and see what jumps.
* 3. Created the file password with the same credentials as primary database.*
You cannot create the password on the eve of 11.1 from file. You must COPY the password from the primary to the wait for passwords to match. What I do, is copy and rename.
E.g.
I copy orapwPRIMARY to the standby server and rename it orapwSTANDBY
(Your names varies)
It could start to work if you do this with a stop and restart of recovery on the day before. Newspapers make up probably just.
If you find this helpful please mark as well.
Best regards
mseberg
Published by: mseberg on July 7, 2011 07:16
A few things about the parameters (they can make no difference)
This
Log_archive_dest_1 =' LOCATION = /
/flash_recovery_area/ORCL11020/archivelog VALID_FOR = (ALL_LOGFILES, ALL_ROLES) db_unique_name = orcl11020' Would it be
Log_archive_dest_1 =' LOCATION = USE_DB_RECOVERY_FILE_DEST VALID_FOR = (ALL_LOGFILES, ALL_ROLES) db_unique_name = orcl11020'
Not sure that you need.
LOG_ARCHIVE_FORMAT='%t_%s_%r.arc'
-
Problem with data hold creating a Physical Standby Database turorial
There is a tutorial for creating a Data Guard Physical Standby Database:
http://www.Oracle.com/technology/OBE/11gr1_db/HA/DataGuard/physstby/physstdby.htm
I tried to install it on two servers. One for a primary database (deuxieme for the physical standby.
I have the error on creating C. the database of watch on the #6 action network:
«On the rescue system, set the ORACLE_SID to your < SID physical standby > environment variable (i.e. orclsby1) and start the instance in NOMOUNT mode with the text initialization parameter file.»
When I try to connect to the instance that is idle, there is an error pops up:
C:\ > sqlplus / as sysdba
SQL * more: version 11.1.0.7.0 - Production Thursday, May 21, 16:28:10 2009
Copyright (c) 1982, 2008, Oracle. All rights reserved.
ERROR:
ORA-12560: TNS:protocol adapter error
I ' v checked listener, and it is managed. There is no database service because there is still no database.
The question is did some data installed a guard configuration using this tutorial? Are there errors in there? What should I do to complete the installation?On Windhose for any service must have been created using the oradim command.
Oracle tutorials are usually centered on Unix, because Windhose is an odd man out, so they do not discuss.
"Please do the needful" and create the service before the beginning of the instance in nomount modeTip: oradim is documented and has a help = clause of y.
IIRC there is an option in control database (in the part of the interview) that automates everything.
----------------
Sybrand Bakker
Senior Oracle DBAExperts: those who read documentation
-
Test failover with physical standby
Hello
I have a primary at base of 11.2.0.4 (cars) and an instance of unique physical standby (on a virtual machine).
I need to test failover.
I'm looking some procedure or steps.
Can they be valid?
On primary
- change the built-in system again to standby_db_name;
- alter system archive log current;
- Stop the shipment of archive: alter system set log_archive_dest_state_2 = "DAVID";
Standby:
- ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL;
- ALTER DATABASE RECOVER MANAGED STANDBY DATABASE FINISH;
- stop immediately; --> the snapshot can be done at this stage or need to get after 'RECOVER MANAGED STANDBY DATABASE CANCEL'
- Make a snapshot of the virtual machine
- startup nomount
- ALTER database base_de_donnees eve of Mount;
- ALTER DATABASE ACTIVATE PHYSICAL STANDBY DATABASE.
- ALTER DATABASE OPEN;
Test what finish
Standby:
- stop the database
- restore from snapshot
- Put the database in recovery mode
Elementary school:
- Allow destination of the Journal 2
What do you think?
Use the snapshot before...
https://docs.Oracle.com/CD/B28359_01/server.111/b28294/manage_ps.htm#BACIEJJI
-
Log_archive_format with physical standby
Oracle RDBMS: 11.2.0.2 (RAC) on RHEL 5.6
We need to define any particular value for log_archive_format parameter when creating physical database from the night before?
In our primary, the value of the parameter is log_archive_format = 't_ % s_ % r.dbf % '. Do we need to change it to another value or can leave us like this for the physics of the standby database?
Number of documents online in various blogs include log_archive_format ='% t_ % s_ % r.arc as well as all the other required parameters for the physical creation of the standby database. I am bit confused, can someone please clarify.
Thank youHello;
Do we need to set any particular value for log_archive_format parameter while creating physical standby database?N °
In our primary the parameter value is log_archive_format='% t_% s_% r.dbf'. Do we need to change it to a different value or can we leave it like that for physical standby database?I love them the same thing only it gaps check more easily. Yours seems to be the default for Linux.
SQL> show parameter log_archive_format NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ log_archive_format string %t_%s_%r.dbf SQL>On all mine, I don't put that and allow you to apply the default value for the parameter.
Best regards
mseberg
-
Hello guys.
Is there a diagram that I made, using for my self this question.
As you can see, I have a physical server with 2 NIC I don't want to use a VM (with Snort) as IPS / IDS system for inbound traffic on the management of VLANS. Is it possible to use this VM in this way (as an IPS/IDS, VM with two NIC without any routing work?)? Maybe you have a suggestion, how can I achieve this, as easy as possible? Maybe you have an opinion, what OS unix system do I use?
Thank you for your time and your answers. Any useful information is much appreciated.
Yes, it should work. You need to look out for, it's that the 'outgoing' NIC is not connected to the same physical switch as the entrant and that there is no link between these two physical switches, because this would create a loop of layer 2 on the network.
I haven't worked much with Linux, but I don't see that you would have a problem to find some Linux/Unix with the possibility to bridge two network cards and use some software IPS to inspect the traffic.
-
Physical standby Archive newspapers vs
Hi all
11 GR 2
Rhel6.5
I'm confused how archivelogs be appied physical standby.
CASES1:
Assuming I backup my primary Db with RMAN full backup now.,
then question crosscheck backup and delete obsolete. It will remove all archivelogs not yet taken to the waiting?
CASE2:
Right now my database pending is on a mode "real apply", so updates to the primary level is done directly on the eve as well, even if the archive logs have not yet carried.
Assuming that I will delete archive records at the primary level, such that it cannot carry, will be the sleep EEG 'gaps' in its Archives logs status?
Your comments are appreciated hightly.
Thank you very much
JC
Read in the mseberg response:
A way to remove applied log file stored in the backup database
How to ensure that RMAN is NOT delete archived logs that have not yet shipped to standby [394261.1 ID]
Kind regards
Juan M
-
Here's my question after tons of research and test without have the right solutions.
Target:
(1) I have a 12.1.0.2 database unique main enterprise 'testdb' as database instance running on the server "node1".
(2) I created physical standby database "stbydb" on the server "node2".
(3) DataGuard running on the mode of MaxAvailability (SYNC) with roll forward in real time 12 default c apply.
(4) primary database has 3 groups of one-man redo. (/oraredo/testdb/redo01.log redo02.log redo03.log)
(5) I've created 4 standby redo logfiles (/oraredo/testdb/stby01.log stby02.log stby03.log stby04.log)
(6) I do RMAN backup (database and archivelog) on the site of relief only.
(7) I want to use this backup for full restore of the database on the primary database.
He is a DR test to simulate the scenario that has lost every primary & Eve total servers.
Here is how to save, on the database pending:
(1) performance 'alter database recover managed standby database Cancel' to ensure that compatible data files
(2) RMAN > backup database;
(3) RMAN > backup archivelog all;
I got elements of backup and copied to primary db Server something like:
/Home/Oracle/backupset/o1_mf_nnndf_TAG20151002T133329_c0xq099p_.BKP (data files)
/Home/Oracle/backupset/o1_mf_ncsnf_TAG20151002T133329_c0xq0sgz_.BKP (spfile & controlfile)
/Home/Oracle/backupset/o1_mf_annnn_TAG20151002T133357_c0xq15xf_.BKP (archivelogs)
So here's how to restore, on the main site:
I clean all the files (data files, controlfiles oder all gone).
(1) restore spfile from pfile
RMAN > startup nomount
RMAN > restore spfile from pfile ' / home/oracle/pfile.txt' to ' / home/oracle/backupset/o1_mf_ncsnf_TAG20151002T133329_c0xq0sgz_.bkp';
(2) modify pfile to convert to db primary content. pFile shows below
*.audit_file_dest='/opt/Oracle/DB/admin/testdb/adump '
* .audit_trail = "db".
* full = '12.1.0.2.0'
*.control_files='/oradata/testdb/control01.ctl','/orafra/testdb/control02.ctl'
* .db_block_size = 8192
* .db_domain = "
*.db_file_name_convert='/testdb/','/testdb /'
* .db_name = "testdb".
* .db_recovery_file_dest ='/ orafra'
* .db_recovery_file_dest_size = 10737418240
* .db_unique_name = "testdb".
*.diagnostic_dest='/opt/Oracle/DB '
* .fal_server = "stbydb".
* .log_archive_config = 'dg_config = (testdb, stbydb)'
* .log_archive_dest_2 = "service = stbydb SYNC valid_for = (ONLINE_LOGFILE, PRIMARY_ROLE) db_unique_name = stbydb'"
* .log_archive_dest_state_2 = 'ENABLE '.
*.log_file_name_convert='/testdb/','/testdb /'
* .memory_target = 1800 m
* .open_cursors = 300
* runoff = 300
* .remote_login_passwordfile = "EXCLUSIVE."
* .standby_file_management = "AUTO".
* .undo_tablespace = "UNDOTBS1.
(3) restart db with updated file pfile
SQLPLUS > create spfile from pfile='/home/oracle/pfile.txt'
SQLPLUS > the judgment
SQLPLUS > startup nomount
(4) restore controlfile
RMAN > restore primary controlfile to ' / home/oracle/backupset/o1_mf_ncsnf_TAG20151002T133329_c0xq0sgz_.bkp';
RMAN > change the editing of the database
(5) all elements of backup catalog
RMAN > catalog starts by ' / home/oracle/backupset / '.
(6) restore and recover the database
RMAN > restore database;
RMAN > recover database until the SNA XXXXXX; (this YVERT is the maximum in archivelog backups that extends beyond the scn of the backup of the data file)
(7) open resetlogs
RMAN > alter database open resetlogs;
Everything seems perfect, except one of the file log roll forward pending is not generated
SQL > select * from v$ standby_log;
ERROR:
ORA-00308: cannot open archived log ' / oraredo/testdb/stby01.log'
ORA-27037: unable to get file status
Linux-x86_64 error: 2: no such file or directory
Additional information: 3
no selected line
I intended to use the same backup to restore primary basic & helps record traffic and the downtime between them in the world of real output.
So I have exactly the same steps (except STANDBY restore CONTROLFILE and not recover after database restore) to restore the database pending.
And I got the same missing log file.
The problem is:
(1) complete alert.log filled with this error, not the concern here
(2) now repeat it in real time apply won't work since the Party shall LGWR shows always "WAITING_FOR_LOG."
(3) I can't delete and re-create this log file
Then I tried several and found:
The missing standby logfile was still 'ACTIVE' at present RMAN backup was made.
For example, on db standby, under Group #4 (stby01.log) would be lost after the restoration.
SQL > select GROUP #, SEQUENCE #, USE (s), the STATUS from v$ standby_log;
GROUP # SEQUENCE # USED STATUS
---------- ---------- ---------- ----------
4 19 ACTIVE 133632
5 0 0 UNASSIGNED
6 0 0 not ASSIGNED
7 0 0 UNASSIGNED
So until I take the backup, I tried on the primary database:
SQL > alter system set log_archive_dest_state_2 = delay;
This was the Group of standby_log side Eve #4 was released:
SQL > select GROUP #, SEQUENCE #, USE (s), the STATUS from v$ standby_log;
GROUP # SEQUENCE # USED STATUS
---------- ---------- ---------- ----------
4 0 0 UNASSIGNED
5 0 0 UNASSIGNED
6 0 0 not ASSIGNED
7 0 0 UNASSIGNED
Then, the backup has been restored correctly without missing standby logfile.
However, to change this primary database means break DataGuard protection when you perform the backup. It's not accept on the production environment.
Finally, my real questions come:
(1) what I do may not do on parameter change?
(2) I know I can re-create the control file to redo before delete and then recreate after. Is there any simple/fast to avoid the standby logfile lost or recreate the lost one?
I understand that there are a number of ways to circumvent this. Something to keep a copy of the log file waiting restoration progress and copy up one missing, etc, etc...
And yes I always have done no real-time applies "to the aid of archived logfile" but is also not accept mode of protection of production.
I just want proof that the design (which is displayed in a few oracle doc Doc ID 602299.1 is one of those) that backs up data backup works effectively and can be used to restore the two site. And it may be without spending more time to resume backups or put the load on the primary database to create the database before.
Your idea is very much appreciated.
Thank you!
Hello
1--> when I take via RMAN backup, RMAN does not redo log (ORL or SRL) file, so we cannot expect ORLs or SRL would be restored.
2nd--> when we opened the ORL database should be deleted and created
3rd--> Expecting, SRL should not be an issue.we should be able to do away with the fall.
DR sys@cdb01 SQL > select THREAD #, SEQUENCE #, GROUP #, STATUS from v$ standby_log;
THREAD # SEQUENCE # GROUP # STATUS
---------- ---------- ---------- ----------
1 233 4 ACTIVE
1 238 5 ACTIVE
DR sys@cdb01 SQL > select * from v$ logfile;
GROUP # STATUS TYPE MEMBER IS_ CON_ID
---------- ------- ------- ------------------------------ --- ----------
3 /u03/cdb01/cdb01/redo03.log no. 0 online
/U03/cdb01/cdb01/redo02.log no. 0 2 online
1 /u03/cdb01/cdb01/redo01.log no. 0 online
4 /u03/cdb01/cdb01/stdredo01.log WATCH No. 0
/U03/cdb01/cdb01/stdredo02.log EVE 5 No. 0
DR sys@cdb01 SQL > ! ls - ltr /u03/cdb01/cdb01/stdredo01.log
method: cannot access the /u03/cdb01/cdb01/stdredo01.log: no such file or directory
DR sys@cdb01 SQL >! ls - ltr /u03/cdb01/cdb01/stdredo02.log
-rw - r-. 1 oracle oinstall 52429312 17 Oct 15:32 /u03/cdb01/cdb01/stdredo02.log
DR sys@cdb01 SQL > alter database force claire logfile 4;
change the database group claire logfile 4
*
ERROR on line 1:
ORA-01156: recovery or current flashback may need access to files
DR sys@cdb01 SQL > alter database recover managed standby database cancel;
Database altered.
DR sys@cdb01 SQL > change the database group claire logfile 4;
Database altered.
DR sys@cdb01 SQL > ! ls - ltr /u03/cdb01/cdb01/stdredo01.log
-rw - r-. 1 oracle oinstall 52429312 17 Oct 15:33 /u03/cdb01/cdb01/stdredo01.log
DR sys@cdb01 SQL >
If you do, you can recreate the controlfile without waiting for redo log entry...
If you still think it's something is not acceptable, you must have SR with support to analyze why he does not abandon SRL when controlfile_type is "underway".
Thank you
-
Test of physical Standby DB 11 g
Hi all
My company is considering a DR test in a few months, and since I never did this until I was wondering what would be the best way to go on the DB pending tests. This is a database of 11G (11.2.0.3). I read the following articles:
http://gavinsoorma.com/2009/09/11g-snapshot-standby-for-real-time-testing/
http://www.Pythian.com/blog/testing-a-physical-standby-database-in-Oracle-10G/
http://www.Oracle.com/technetwork/articles/SQL/11g-DataGuard-083323.html
From what I can tell the snapshot method is the easiest. My main question is when the primary method still must send the archive logs to the waiting or can I defer only to archive log shipping? How we test normally the site of DR is completely disconnect the network connections and put everything in place for the primary will not be able to speak to the waiting and vice versa. Or is the best method to follow the other article that speaks using the flashback database?
Thanks in advance for your help.
From what I can tell the snapshot method is the easiest. My main question is when the primary method still must send the archive logs to the waiting or can I defer only to archive log shipping?
Are you in 11g, yes instant is a nice feature to test your intelligence. If you enable the destination, there is no problem. Meanwhile if too many records are generated and then it takes a long time to get a site to DR.
How we test normally the site of DR is completely disconnect the network connections and put everything in place for the primary will not be able to speak to the waiting and vice versa
You can also completely disconnect the primary DR and tests after the conversion of the physics on the eve of the snapshot if it is your condition to do so.
Or is the best method to follow the other article that speaks using the flashback database?
In traditional flashback, you will need to take care just like the creation of restore point with guarantee, mode standby manually and run again then flashback to the restore point. Snapshot is really simple and easy to use. If am in your position of course I use the standby database snapshot.
-
Hi all
I have a custodian of data configured in my local system. Please find the slot configuration of the data protection
Data type of guard:-physical Standby (version Oracle 11 g)
Service responsible for log transport:-ARCH
No newspaper to redo the previous day:- neither primary Nor in standby mode
I'm failing by using the command 'alter database recover managed standby database finish. "
Please find the below info alert log after this command.
Killed Dec 03 01:42:14 2013
ALTER database recover managed standby database finish
Try to perform a recovery of Terminal (PRD)
Beginning media recovery: recovery ensures managed (PRD)
Parallel media enabled rapid recovery
Managed Standby recovery not using real time applies
Media, recovery waiting for thread 1 sequence 145
"Terminal recovery Timestamp is December 3, 2013 01:42:15.
Terminal recovery: application standby redo logs.
Terminal recovery: thread 1 seq # 145 again required
Media, recovery waiting for thread 1 sequence 145
Terminal recovery: allowance end Redo log
Recovery Terminal: waiting for redo logfile created 3 ' / data/PRD_DR/arch/arch_1_0_831359165.arch'
This waiting for redo log file is created as part of the recovery
operation. This waiting for redo log file should be deleted after the
transition to a primary operation complete.
Recovery Media Log /data/PRD_DR/arch/arch_1_0_831359165.arch
Terminal retrieval: newspaper 3 reserved for thread 1 sequence 145
Online Redo Log recovery: thread 1 mem Group 3 Seq 145 reading 0
Mem # 0: /data/PRD_DR/arch/arch_1_0_831359165.arch
Identified end-of-Redo for thread 1 sequence 145
Incomplete recovery applied all redo them ever generated.
Change recovery completed by 559773 23/11/2013 time 13:38:13
Recovery media Complete (PRD)
Terminal recovery: success of
Activation reset sleep ID 1895332757 (0x70f87b95)
Completed: alter database recover managed standby database finish
Killed Dec 03 01:42:50 2013
change the database for validation at the crossing elementary school
ALTER DATABASE TRANSITION TO PRIMARY SCHOOL (PRD)
Waiting for the transition from role maximum is 15 minutes.
Backup controlfile written to trace the file /apps/oracle/diag/rdbms/stand/PRD/trace/PRD_ora_9466.trc
tkcrrxms: kill 3 process (all the RFS)
Terminal standby recovery start SCN: 559772
RESETLOGS after complete through change 559773
Log in/data/PRD_DR/REDOLOG11 line. JOURNAL: Thread 1 Group 1 had been previously authorized
Log in/data/PRD_DR/REDOLOG21 line. JOURNAL: Thread 1 group 2 was previously disabled
Standby became primary YVERT: 559771
Killed Dec 03 01:42:53 2013
Here, my question is, why oracle implicitly creates a newspaper waiting redo pending data base for the realization of "alter database recover managed standby database finish".
Thank you
Like to, its due to the following bug.
Bug 5889025 : FINISHING SWITCH GENERATES INCORRECT STANDBY REDO LOG.
This bug refers to version 9i and standby redo logs/realtime concept is not available.
OP using the 11g version... Although if you see in the State of the article, the State is "92 - closed, not a Bug", according to me this is the default behavior and is not bug.
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