Data Guard versus Active Data Guard?
Environment:Oracle on Solaris 5.10 EA 11.2.0.3 database
I have read several threads here and paid through the documentation, but this point still escapes me.
When Data Guard to become Active Data Guard?
When Eve is OPEN and in read mode ONLY all redo logs are actively applied?
If I stop log apply and OPEN the day before for READONLY access, is this just regular Data Guard?
I want to of course use Data Guard but not pay for Active Data Guard at this stage.
Where this is documented?
Michael, if you listen, it's well to the top of your driveway! :-)
Thank you very much!!
-gary
Hello;
When a database of the previous day is opened read-only for queries, sorting and reporting.
Requires a license.
The day before still applies again.
http://www.Oracle.com/technetwork/database/features/availability/DS-activedataguard-11gr2-130305.PDF
See also - 9.2 open a physical database from the previous day-
Oracle® DataGuard of Concepts and Administration 11 g Release 2 (11.2) E10700-02
Best regards
mseberg
Published by: mseberg on January 29, 2013 08:03
Tags: Database
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Hi all
EBS r12.2.4
rhel6.5
Active Dataguard applies in ebs?
It is available in 11.1 or 11.2 only and up to?
Thank you very much.
JC
Hello JC,.
See the following blog: https://blogs.oracle.com/stevenChan/entry/oracle_active_data_guard_111
See also ""E-Business Suite Oracle Active Data Guard Certifications ". "
Coco - M
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TAF TNS entry for active data guard
Hello world
Need your advice on the configuration of the TNS entrance side transparent client failover of the DB in waiting in a Data Guard configuration active?
Normally, I create a service manually and configure this service to start or stop according to the change of role of database. Then have personalities of the two sites in the entry of TNS (example below).
TEST =
(DESCRIPTION =
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(ENABLE = BROKEN)
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Is there a better way to do this? Can we achieve this using an AMT only?
I think I found the answer. According to the document oracle practices best client failover, the service can be configured to start automatically on the standby server when the role of the db is changed. This can be achieved by creating a service with srvctl with option '-l PRIMARY' on both sites
For example:
Main cluster: srvctl add service d Austin s oltpworkload r - ssa1 ssa2 ssa3, ssa4-l primary SCHOOL - q TRUE EI SESSION m BASE w 10 - z 150
Cluster of relief: srvctl add service d Houston s oltpworkload - r BSR1, ssb2, ssb3, ssb4 - l PRIMARY - q PURE EI SESSION m BASE w 10 - z 150
Documentary link--> http://www.oracle.com/au/products/database/maa-wp-11gr2-client-failover-173305.pdf
Also the entrance to the AMT must be created with two descriptions, one for primary and one for standby
TNS_DG =
(DESCRIPTION_LIST =
(LOAD_BALANCE = OFF)
(FAILOVER = ON)
(ENABLE = BROKEN)
(DESCRIPTION =
(ADDRESS_LIST =
(LOAD_BALANCE = ON)
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(ADDRESS = (PROTOCOL = TCP) (HOST = vip2-primarydb)(PORT = 1521))
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(ADDRESS = (PROTOCOL = TCP) (HOST = vip2-standbydb)(PORT = 1521))
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(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
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(METHOD = BASIC)
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(TIME = 2)
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)
)
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Hi guys,.
I hope you can give me some advice.
I have a BD PRIMARY in a server and a STANDBY in another server.
I do not configure these databases and I don't have too much experience with data protection.
The problem is that the STAND BY lost the sincronization. I just watched a few views on the database and I found that the media database is READ only, so I think that is an Active Data Guard.
-PRIMARY:
SQL > SELECT name, State, database_role, open_mode connections, log_mode FROM v$ instance, v$ database;
STATUS DATABASE_ROLE LOG_MODE CONNECTIONS
--------- ---------------- -------------------- ------------
BD PRIMARY READ WRITE ARCHIVELOG
-STANDBY TIME:
SQL > SELECT name, State, database_role, open_mode connections, log_mode FROM v$ instance, v$ database;
STATUS DATABASE_ROLE LOG_MODE CONNECTIONS
--------- ---------------- -------------------- ------------
PHYSICAL STANDBY BD READ ONLY WITH APPLY ARCHIVELOG
-PRIMARY:
"SQL > select SEQUENCE #, FIRST_TIME NEXT_TIME, APPLIED, ARCHIVES of V$ ARCHIVED_LOG, whose name = ' STANDBY' FIRST_TIME agenda;
SEQUENCE # FIRST_TI ARC APPLIED NEXT_TIM
---------- -------- -------- --------- ---
56 18/03/15-18/03/15 NO YES
57 18/03/15-18/03/15 NO YES
58 18/03/15-18/03/15 NO YES
59 18/03/15 03/19/15 NO YES
60 19/03/15 03/19/15 NO YES
61 19/03/15 03/20/15 NO YES
...
426 13/05/15 13/05/15 NO YES
427 13/05/15 13/05/15 NO YES
428 13/05/15 13/05/15 NO YES
429 13/05/15 05/14/15 NO YES
430 14/05/15 05/15/15 NO YES
I saw the newspaper archive all copy them correctly on the standby server, but they apply. I don't know why.
How can I get the two database will be synchronized? What option I have?
Best regards...
Hello, you should check if Fal_server and Fal_client settings are configured in the main bodies and relief.
In the standby instance fal_server must point to name PRIMARY, as it appears in tnsnames.ora
fal_client must point in standby mode, as it appears in tnsnames.ora
In the first instance, fal_server must point to the name of Eve, as it appears in tnsnames.ora, fal_client pointing to primary name, as it appears in tnsnames.ora
on the other hand, you must restore the automatic sequence 33-55 on the backend and fal then transport and then primary eve because of the resolution of the gap.
http://docs.Oracle.com/CD/B19306_01/server.102/b14239/log_transport.htm#i1268281
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Refresh the MV of standby Active Data Guard
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Hello mseberg,
You made a very good point about the definition of a database of the READER.
After you have answered, I found in MOS: create a distributed materialized view based on a master table on a database in read-only (Doc ID 276023.1)
This explains that it is NOT possible to make a fast refresh of a database shall RO. However, it *peut* be possible to do a complete refresh of a standby Number. It depends on the query used to define the MV. If the RDBMS Analyzer determines the MV is *able* to fast refresh (even if there may not need it right now), so you can't do a full refresh since the eve of the RO. If the parser determines that the request is NOT able to fast refresh, then you can do a full refresh since the eve of the RO. I tested this script on 11.2.0.3.8 and found to be true:
CREATE THE MIMI MATERIALIZED VIEW. MV_TEST
TABLESPACE USERS
IMMEDIATE CONSTRUCTION
COMPLETE REFRESH
AS (SELECT * FROM TEST@MIMI_ROSTBY);
ORA-16000: database opened for read-only access
ORA-06512: at "SYS." DBMS_SNAPSHOT_UTL', line 364
ORA-06512: at "SYS." DBMS_SNAPSHOT_UTL', line 446
ORA-06512: at line 1
Now, I've changed the MV query to use a 'one time' feature (ROWNUM), which causes the query become complex (not able to fast refresh). I can now create a MV on the day before RO, because the query is no longer able to fast refresh and requires no registration on the eve of the RO:
CREATE THE MIMI MATERIALIZED VIEW. MV_TEST
TABLESPACE USERS
IMMEDIATE CONSTRUCTION
COMPLETE REFRESH
AS (SELECT * FROM TEST@MIMI_ROSTBY WHERE ROWNUM > 0);
Created.
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I read that it is possible to do an insert in my database for the standby Active Data Guard by redirecting the insert to get on the primary via DB link. I GLOBAL_NAMES set to TRUE and he needs to stay that way. This means that I can't create a DB link pointing to my first as such:
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http://uhesse.files.WordPress.com/2012/03/realtimequery.PDF
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Hello;
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EI SESSION (type switching must be set to both)
m BASIC (set on both)
l PHYSICAL_STANDBY (isn't one of yours in this service role?)
z - 15 (150 retrys seems too high)q (the value TRUE or FALSE)
w (set on both)
srvctl add service d smsgsig1 s smsgro-l PRIMARY - SESSION - q TRUE m BASE w 10 EZ 15
srvctl add service d smsgsig1 s smsgrw-l PHYSICAL_STANDBY - q REAL - m BASE w 10 EZ 15 SESSION
Best regards
mseberg
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Oracle11g R2 Active Data guard using ASM problem?
I configured oracle11g r2 RAC on 2 notes with the ASM (OS, unix) grid.
ACR is running.
Now I'm setting up Active data Guard.
Under Network instance user + ASM and the listener is running.
User is running under oracle listener static.
Any drive is mounted.
Oracle RAC and Data Guard directory and structure I've kept even.
Now my problem is below:
$. / rman target sys/HPinvent123nbl@dcpdb sys/HPinvent123nbl@drpdb ASSISTANT
Recovery Manager: release 11.2.0.1.0 - Production on Wed Jan 16 16:28:32 2013
Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved.
connected to target database: DCPDB (DBID = 316773134)
connected to the auxiliary database: DRPDB (unassembled)
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From 16 January 13 Db double
using the control file of the target instead of recovery catalog database
allocated channel: ORA_AUX_DISK_1
channel ORA_AUX_DISK_1: SID = 5644 device type = DISK
content of Script memory:
{
backup that copy reuse
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' / u02/app/oracle/product/11.2.0/dbhome_1/dbs/orapwdrpdb';
}
execution of Script memory
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allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID = 1897 instance = dcpdb1 = DISK device type
Backup finished on 16 January 13
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RMAN-00571: ===========================================================
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ORA-01031: insufficient privileges
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Please help. \
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SolaimanIs your Oracle asmdba group user name?
What is the output of command mentioned below
ID Oracle
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OIM 11 g database using Active Data Guard recovery
Hello
Someone did he do IOM database failover configuration using the active data guard.
Here are the details
• Two application in primary servers and one in secondary sites
• Two databases one in primary and the secondary sites.
• Two application servers point to the primary database.
• There is an Active Data Guard set up between primary and secondary data.
• Secondary database is in stand-by mode.
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For the benefit of the users of the forum.
CNAME - usoimdb pointing to primaryDBHost and can be changed to secondaryDBHost in the case of DR
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JDBC:Oracle:thin:@usoimdb:1523/usoimdbsvc -
Hello
We're trying to create a configuration of guard of active data on 2 physical machines. We have a watch created and works correctly, but put in question whilesetting and data active guard configuration.
Additional primary and standby on the primary server is DGMGRL configuration. (not yet did nothing to sleep)
-----------------------------------------------------------------------
DGMGRL > see Configuring
Configuration - DGConfig1
Protection mode: MaxPerformance
Databases:
prod - primary database
Dr - Physical standby database
Error: ORA-16664: impossible to receive the result of a database
Fast-Start Failover: DISABLED
The configuration status:
ERROR
-----------------------------------------------------------------------
The primary database listener:_
[Journal of the oracle@prod] $ cat /u01/app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora
listener.ora # Network Configuration file: /u01/app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora
# Generated by Oracle configuration tools.
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = CIP)(KEY = EXTPROC1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = prod.localdomain) (PORT = 1521))
)
)
ADR_BASE_LISTENER = / u01/app/oracle
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = prod)
(ORACLE_HOME = u01/app/oracle/product/11.2.0/dbhome_1)
(SID_NAME = prod)
)
(SID_DESC =
(GLOBAL_DBNAME = prod_DGMGRL)
(ORACLE_HOME = u01/app/oracle/product/11.2.0/dbhome_1)
(SID_NAME = prod)
)
)
Standby database listener:_
[oracle@dr ~] $ cat /u01/app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora
listener.ora # Network Configuration file: /u01/app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora
# Generated by Oracle configuration tools.
LISTENER =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP) (HOST = 192.168.1.162)(PORT = 1521))
)
ADR_BASE_LISTENER = / u01/app/oracle
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = dr)
(ORACLE_HOME = u01/app/oracle/product/11.2.0/dbhome_1)
(SID_NAME = dr)
)
(SID_DESC =
(GLOBAL_DBNAME = dr_DGMGRL)
(ORACLE_HOME = u01/app/oracle/product/11.2.0/dbhome_1)
(SID_NAME = dr)
)
)
Entry on the two TNS:_
[oracle@dr ~] $ cat /u01/app/oracle/product/11.2.0/dbhome_1/network/admin/tnsnames.ora
tnsnames.ora # Network Configuration file: /u01/app/oracle/product/11.2.0/dbhome_1/network/admin/tnsnames.ora
# Generated by Oracle configuration tools.
PROD =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP) (HOST = 192.168.1.161)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = prod)
)
)
DR =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP) (HOST = 192.168.1.162)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = dr)
)
)
Article followed for the creation of the DG: http://www.oracle.com/webfolder/technetwork/tutorials/obe/db/11g/r2/prod/ha/dataguard/dg_broker/dg_broker.htm
Please suggest where it goes wrong?
Consider!Hi bLak!
Can paste you here the results of the following command?
1.On both server tnsping dr trnping prod 2. On Standby DGMGRL> show configuration 3. I think you standby server is not see, primary. use Netca add prod to Net Service name again 4. if need , disable database dr; enable database dr;
Concerning
Mr. Mahir Quluzade
http://www.Mahir-quluzade.com -
Digital switchover and Active Data Guard
I spin a quarter-Exadata V2 support systems (two instances CARS) and am changing my sleep Physics (an Exadata V1 rack with four RAC instances) in an Active Data Guard configuration (i.e. bearer Real - Time Query). The RDBMS runs 11.2.0.2 with BP7.
My question is if I need to disable RTQ/Active Data Guard before a planned failover? If this is not the case, the transition process will automatically start QTR on the 'new' standby (i.e. my 'old' primary)? We'll test this on next month, but he was curious to know what to expect in advance.
I use DGMGRL (Data Guard Broker) to manage the transition to digital.
Any thoughts?
MarkIf you use the broker, as you must do with RAC, the broker must manage everything seamlessly. If it's not, and you need to test this, open an SR with Oracle's Support.
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My version of the 11.2.0.2.0 and OS database is Oracle Solaris 10 9/10.
I am facing a problem in my custody of data Active data base for purposes of tax. Active Data guard information is as below.
SQL > select name, database_role, open_mode from v$ database;
NAME DATABASE_ROLE OPEN_MODE
--------- ---------------- --------------------
ORCL PHYSICS READ SHALL ONLY APPLY
Detail of the problem is less than
------------------------------
I have created a db link (name: DATADB_LINK) between active data guard and report of application of data base for purposes of tax.
SQL > create database DATADB_LINK link to connect to HR identified by HR using 'DRFUNPD ';
Database link created.
But when I run a query using db link to my database of enforcement report I got this error below.
ORA-01555: snapshot too old: rollback segment number 10 with the name ' _SYSSMU10_4261549777$ ' too small
ORA-02063: preceding the line of DATADB_LINK
Then I see logfile named database alart Active Data Guard and get below error
ORA-01555 caused by the following SQL statement (SQL ID: 11yj3pucjguc8, time of request = 1 sec, SNA: 0x0000.07c708c3): SELECT "A2". "' BUSINESS_TRANSACTION_REFERENCE ', 'A2 '. "' BUSINESS_TRANSACTION_CODE ', MAX (CASE 'A1'. "TRANS_DATA_KEY"WHEN "feature' AND 'A1'." " END OF TRANS_DATA_VALUE"), MAX (CASE 'A1'. "TRANS_DATA_KEY" WHEN 'otherFeature' THEN 'A1' '. "" END OF TRANS_DATA_VALUE")
But the interesting point if I run the query report directly in the Active Data Guard database, I got never error.
So it's a problem of link DB between active Data Guard and other databases?Fazlul Kabir Mahfuz wrote:
My version of the 11.2.0.2.0 and OS database is Oracle Solaris 10 9/10.
I am facing a problem in my custody of data Active data base for purposes of tax. Active Data guard information is as below.SQL > select name, database_role, open_mode from v$ database;
NAME DATABASE_ROLE OPEN_MODE
--------- ---------------- --------------------
ORCL PHYSICS READ SHALL ONLY APPLYDetail of the problem is less than
------------------------------
I have created a db link (name: DATADB_LINK) between active data guard and report of application of data base for purposes of tax.
SQL > create database DATADB_LINK link to connect to HR identified by HR using 'DRFUNPD ';
Database link created.But when I run a query using db link to my database of enforcement report I got this error below.
ORA-01555: snapshot too old: rollback segment number 10 with the name ' _SYSSMU10_4261549777$ ' too small
ORA-02063: preceding the line of DATADB_LINKThen I see logfile named database alart Active Data Guard and get below error
ORA-01555 caused by the following SQL statement (SQL ID: 11yj3pucjguc8, time of request = 1 sec, SNA: 0x0000.07c708c3): SELECT "A2". "' BUSINESS_TRANSACTION_REFERENCE ', 'A2 '. "' BUSINESS_TRANSACTION_CODE ', MAX (CASE 'A1'. "TRANS_DATA_KEY"WHEN "feature' AND 'A1'." " END OF TRANS_DATA_VALUE"), MAX (CASE 'A1'. "TRANS_DATA_KEY" WHEN 'otherFeature' THEN 'A1' '. "" END OF TRANS_DATA_VALUE")
But the interesting point if I run the query report directly in the Active Data Guard database, I got never error.
So it's a problem of link DB between active Data Guard and other databases?
Check this statement that applies to your environment
* ORA-01555 on Active Data Guard Standby Database [1273808.1 ID] *.
also
http://asktom.Oracle.com/pls/asktom/f?p=100:11:0:P11_QUESTION_ID:8908307196113
-
Fast-Start Failover &; Active Data Guard
Hi experts,
I set up a 2-nodes with fast failover-Dataguard!
While tesing the system I have seen that the backup database is to read only State (no editing).
It means I have a watch guard of active data!
Active data guard standby is a necessary condition to run the accelerated shift (the license is required?)
Thanks and greetings
hqt200475To be more precise: READING ONLY one OPEN does not mean that you use queries in real-time, who need the option Active Data Guard. Only if you redo apply while being read-only that is open has Active Data Guard. You can determine by the column OPEN_MODE from v$ database with11.2.
Kind regards
Uwe Hessehttp://uhesse.WordPress.com
Published by: Uwe Hesse on 25.10.2011 16:26
Corrected an actress-> Active -
Active Data Guard on DB 11 g and ADF business components
Does anyone has experiences using business against a data source Active Data Guard components? Y at - it something ADF BC specific, you might need to know/set up regarding the parameters of the Application Module. Of course, we would read only your with her. Sorry it kinda turns out to be a beautiful finished question just want to know if it's a go or one thing more than any other possiblity.TheOtherDave,
It should work perfectly. One thing you will need to know is the passivation of State mechanism used by ADF BC can use a store based on files or DB-table-based store. Obviously, if you want to use the DB-table-based store, you will have to configure it to point to a database where you can write to DB tables, which will be probably different from your database pending of DG. Otherwise, I can't think of specific issues (but I don't him have not personally tested).
John
-
Hello
Can we create an Active Data Guard in Oracle 10 g R2 release?
VinitaHi Vinita;
Can we create an Active Data Guard in Oracle 10 g R2 release?
You can not, you need to be level 11g. Please see:
http://www.databasejournal.com/features/Oracle/article.php/3834931/using-Oracle-11gs-Active-Data-Guard-and-snapshot-standby-features.htm
http://en.Wikipedia.org/wiki/Oracle_Data_GuardRespect of
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