Data Guard and Standby - howto shutdown servers and bring them up again

Hi,
i just finalized a installation where i installed 3 servers
1st server (windows 2003 x64) primary database 11g
2nd server (windows 2003 x64) phys. standby database 11g - created by grid control
3rd server (windows 2003 x32) em grid control 10.2.0.5
after i created the standby database everything is working fine - all logs applied - no errors at all
all agents are running
after i restarted all 3 servers the primary database came up and also the grid control
but the standby database is not up - only the agent is running
the listener-service and the database-service are in startmode "manual"
why does the agent did not start the standby ?
i 've got some errors in grid-control ORA-12514: TNS:listener could not resolve SERVICE_NAME given in connect....
and in the tnsnames of the primary-db there are no entries for the standby
i have an empty tnsnames.ora on the standby
any idea how to solve this
regards
peter

Hi,
it is not about starting the database.
i was wondering that during the installation of
standby by gidcontrol, on the standby and primery server, there were
no entries for the primery or the standby in tnsnames.ora
if i reboot the standby machine i have to start the standby
database by
"STARTUP MOUNT;
ALTER DATABASE RECOVER MANAGED STANDBY DATABASE USING CURRENT LOGFILE DISCONNECT FROM SESSION;
--> right ??
but gridcontrol gives some errors ORA-12514
do i have to add the tnsnames-entries for the standby on the primary
manualy or should have this been done by the gridcontol-configuration - because
this wasn't done ...
also the listener on the standby is in manual startup mode
Do i have to start it to work for the standby ???
thanks
peter

Similar Messages

Data Guard Physical Standby Failover

I need clarification on Physical Standby Failovers. Say I have a Primary db (A) and a physical standby (B), (A) fails and (B) is now the primary, can (A) be setup to become a standby of (B)? I've read 2 different statements in Oracle 10g Data Guard Concepts and Admin
"During failovers involving a physical standby database: In all cases, after a failover, the original primary database can no longer participate in the Data Guard configuration."
vice
"After a fast-start failover occurs, the old primary database will automatically reconfigure itself as a new standby database upon reconnection to the configuration."
Much thanks.

In all cases, after a failover, the original primary database can no longer participate in the Data Guard configuration.
TRUE ! But this doesn't mean that you cannot make your failed primary a new standby database !.
You can achieve this using FLASHBACK DATABASE option:
From the documentation:
After a failover occurs, the original primary database can no longer participate in the Data Guard configuration until it is repaired and established as a standby database in the new configuration. To do this, you can use the Flashback Database feature to recover the failed primary database to a point in time before the failover occurred, and then convert it into a physical or logical standby database in the new configuration.
Read the following documents:
http://download.oracle.com/docs/cd/B19306_01/server.102/b14239/role_management.htm#sthref995
http://download.oracle.com/docs/cd/B19306_01/server.102/b14239/scenarios.htm#i1049997
In addition to this I'd like to mention that you can achieve the same with doing an incomplete recovery instead of using FLASHBACK DATABASE.
"After a fast-start failover occurs, the old primary database will automatically reconfigure itself as a new standby database upon reconnection to the configuration."
TRUE. If you enable Fast-Start Failover:
http://download.oracle.com/docs/cd/B19306_01/server.102/b14230/sofo.htm#CHDDFFEC
Cheers!

Data Guard logical standby Versus Streams

I'm referring to both Oracle 10g/9i
If a Data Guard logical database uses similar technology to Streams (Log Mining and SQL apply), why can't you stand up a standby database on a different platform, or at least I have found nothing on the subject.
But in 11g Oracle Data Guard (physical standby database) is a solution for same endianness platform migration.
I will appreciate any insight on the subject.

Yes...thats true...both uses same technology...
REDO LOGMINER
SQL------------------------>BLOCK LEVEL CHANGES---------------------------------->SQL
But there are serious implemetation diff..
1) Oracle Data Guard is designed for protecting from data failure and disasters.
Streams is designed for information sharing and distribution but can also provide a very efficient high availability solution.
2) Streams is configured from the bottom up — individual tables, schemas, capture processes, apply processes, queues.
Logical Standby is configured from the top down — start with entire database, then specify only what you don’t want.
As logical standby is top down and changes are capture at remote location (logical standby db) and for that archive log need to be shipped using FAL client/server to remote and to ship the archivelog in Data Guard configuration, all members should be running on same platform.
As said before, Streams is configured from the bottom up, it start with tables--> Schemas--->Database and we can capture changes at local/remote location. If we capture changes locally, target streams db can be on diff platform. But for downstream capture must need same platform as logical standby database needed so that archivelogs can transport from source to downstream db.

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Data guard related OS processes in Primary and Standby servers

Database version : 11.2.0.3
Operating System : RHEL 5.8
Type: Physical Standby
++++++++++++++++++++++++++++In a typical Linux server hosting a Physical standby DB, the data guard related OS processes that appear in ps output
are like below. One mrp for each standby DB.
ps -ef |grep mrp
oracle 9380     1   0   May 21 ?          57:33 ora_mrp0_STRYKER_DG
oracle 18874     1   0   May 23 ?          33:45 ora_mrp0_FLPSA
oracle 18992 18837   0 23:39:39 pts/3       0:00 grep mrpSimilarly ,In a typical Linux server hosting a Primary DB what are the data guard related OS processes that appear in ps output ? Will LNS process appear in ps output ? Any other processes ?

Similarly ,In a typical Linux server hosting a Primary DB what are the data guard related OS processes that appear in ps output ? Will LNS process appear in ps output ? Not exactly but it appears has different name, on your primary try below commands
SQL> select pid from v$managed_standby where process='LNS';
$ps -ef|grep <pid value>
hope this helps, on standby you can use same procedure to find the RFS OS process

Data Guard Broker fails with ORA-16635 and ORA-03135

Hi All,
I configured Oracle RAC with Dataguard 11.2 on Windows 2003.
I've already configured Standby without Data Guard Broker and everything is working fine, but when I try to use Data Guard Broker, he can not synchronize the files from the Data Guard Broker.
I've tried everything including MOS, but not found anything.
I'm getting this error.
From Primary
DG 2011-02-11-09:15:41        0 2 0 NSV1: (MIV = 57) Start sending metadata file: "+DG_DATA/orcl/dgbroker/dg_config_file1.dat"
DG 2011-02-11-09:15:41        0 2 0 NSV1: Sending block #1 (containing MIV = 57), 67 blocks
DG 2011-02-11-09:15:42        0 2 0 NSV1: Error sending block #1, size 67 blocks. Error is ORA-16635.
DG 2011-02-11-09:15:42        0 2 0 NSV1: Current network link for metadata resync is broken.
DG 2011-02-11-09:15:42        0 2 0 NSV1: (MIV = 57) End metadata file transmission: opcode CTL_ENABLE (1.1.1825138532)
DG 2011-02-11-09:15:42        0 2 0 NSV1: Can't send CLOSE message to DRCX. Network error is: ORA-16635.
DG 2011-02-11-09:15:42        0 2 0 NSV1: Error is ORA-03135 connection lost contact
DG 2011-02-11-09:15:42        0 2 0 NSV1: Current network link for metadata resync is broken.From Standby
DG 2011-02-11-08:35:39 3001000 3 1825138419       for opcode = CTL_ENABLE, phase = RESYNCH, req_id = 1.1.1825138419
DG 2011-02-11-08:35:39        0 2 0 NSV2: Error sending block #1, size 67 blocks. Error is ORA-16635.
DG 2011-02-11-08:35:39        0 2 0 NSV2: Current network link for metadata resync is broken.
DG 2011-02-11-08:35:39        0 2 0 NSV2: (MIV = 11) End metadata file transmission: opcode CTL_ENABLE (1.1.1825138419)
DG 2011-02-11-08:35:39        0 2 0 NSV2: Can't send CLOSE message to DRCX. Network error is: ORA-16635.
DG 2011-02-11-08:35:39        0 2 0 NSV2: Current network link for metadata resync is broken.
DG 2011-02-11-08:35:39        0 2 0 NSV2: Metadata Resync failed. Status = ORA-16635
DG 2011-02-11-08:35:39 3001000 3 1825138419 DMON: Database ORCLSTBY returned ORA-16635

Hi,
Are you using firewall between Hosts?
If yes check if firewall is blocking yours connections.
Set the following parameter in the sqlnet.ora file that would be referenced by each database, primary and standby.
SQLNET.EXPIRE_TIME=n
Where n is some number of minutes. Preferably below 10. When this parameter is enabled, a small 10 byte probe packet will be sent from node to node at specific intervals.
Regards,
Levi Pereira

Data Guard, Grid Control 11, GI 11gR2, and DB 10gR2

Hi,
I'm seeing a rather odd behavior, and I'm hoping someone else has already been through this and knows what I'm doing wrong.
I have an installation of Grid Control 11.1 (recently patched) which I am using to create Data Guard replication of some 10gR2 database instances. For some confusing reason, sometimes when I use the GC wizard to add the standby database, it creates the listener for the new database in the EM Agent's OH/network/admin/listener.ora. Other times, it creates it in the 10gR2 DB's OH/network/admin/listener.ora. When it does the former, creation of the standby DB seems to work fine, but when it does the latter, not so much.
If it matters, my primary DB is 10.2.0.4 on 10.2 grid infrastructure, and my standbys are 10.2.0.4 on GI 11.2.0.2.
I have applied the latest PSU to my agents, so they are all the same version, so I'm confused as to why this might be happening. Has anyone else seen this issue?
Thanks,
Bill

My recommendation would be to not use OEM Grid Control to create your standby.
Even when it is working properly ... it does not create what I would consider a good implementation. Just as I don't consider the vanilla installation of the Oracle database by the OUI (all control files and redo logs in the same directory with the datafiles) very good.
You'd be far better off hand crafting your standby using two listeners ... one for public and one for replication.

DATA Guard Logical Standby v.s. Streams Apply (10gR2, rac -- rac )

Greetings -
We currently have a 3 node cluster, doing a 'Schema' capture, with a 2 node cluster serving as the apply side. Both are on 10gR2 (solaris 10)
We have been experiencing apply latency due to large transactions. The way logminer/streams evaluates the arch logs, it converts each updated row into a transaction as part of a transaction set, using 'decode (' statements.
I am under the impression a physical standby will do the same thing. But what about a logical Standby ?
(this from the Oracle Documentation)
[10g Concepts|http://download.oracle.com/docs/cd/B19306_01/server.102/b14239/concepts.htm#SBYDB00010]
...Contains the same logical information as the production database, although the physical organization and structure of the data can be different. The logical standby database is kept synchronized with the primary database though SQL Apply, which transforms the data in the redo received from the primary database into SQL statements and then executing the SQL statements on the standby database.
Does anyone know firsthand if SQL APPLY re-issues the original sql, or if it relies on the 'decode' command as well ?
Thanks
The Nets Edge

A Physical standby does not do anything with SQL. It is running media recovery under the covers. A Logical standby uses the Logminer to read the redo, converts it to SQL and Data and applies those transactions to the Logical standby.
The both build logical change records, figure out order, dependencies etc etc and applies the transaction. Both are susceptible to long running transactions on the Primary (source) database.
Streams uses Logminer, Logical Standby use part of the Streams apply so as Mr. Morgan said, they are very similar :^)
If you are having apply performance issues you may want to look at Active data Guard.
Larry

Data Guard Logical Standby DB Questions

Hi,
I am creating Oracle 9i Logical Standby database on AIX 5 on same server ( for
testing only ).
In Data Guard Manual ( PDF file page no : 86 ) it is said that
Step 4 Create a backup copy of the control file for the standby database. On the
primary database, create a backup copy of the control file for the standby database:
SQL> ALTER DATABASE BACKUP CONTROLFILE TO
2> '/disk1/oracle/oradata/payroll/standby/payroll3.ctl';
My Questions regarding this are
1. Does it missing "backup standby controlfile" word ? if not what is the use of
this control file ? Because as per this manual section 4.2.2 step no 1 and 2 I
have stopped the primary database and copied datafiles,logfiles and controlfiles
as specified which are having consistent stage.
2. On primary database I am mirroring 2 controlfiles at two diffrent locations.
On Standby Database I am going to keep same policy. Then on standby database do I have to copy this controlfile to two locations and rename datafiles or I have
to user controlfiles which I have backed up along with datafiles ?
3. Suppose my primary database is "infod" and standby database is "standby".
Then what should be value of log_file_format parameter of standby database ? On
primary db I have defined "infod LOG_ARCHIVE_FORMAT=infod_log%s_%t.arc. Do I have to keep same or change it ? If on standby db I change the value do I
require other parameters to be set ?
regards & thanks
pjp

Q/A1) Its correct you dont need the standby keyword. Not sure abut the reason why but we have created logical standby running in prod using the oracle doc.
Q/A2) Yo can specify any location and name for your controlfiles as it is instance specific and not depending on primary database.
Q/A3) You can set any format for your archlogs on standby side. It doesnt bother the primary db or DG configuration.
Regards,
http://askyogesh.com

About Data Guard - Physical Standby Database

Dear All,
I have read many documents regading Data Guard.
I am about to setup Data Guard in our current environment but want to clear few tings.
I have a confusion between physical and logical standby database.
What I have read from different documents is:
-Physical Standby Database in (11g)
1) It is the most efFicient
2) I can be either in mount or open state
3) Select queries and reporting can be done to improve performance of the primary database.
4) Schema on primary and standby database is always the same
-- Logical Standby Database
1) You can create additional tables, indexes, etc.
2) Always in open mode
3) Select queries and reporting can be done to improve performance of the primary database
Now our scenerio is, that we have one server at the moment, OS is linux and operating system is 11g. We want to setup an other server in another country, will also be 11g on Linux in a way that it acts as standby/backup server. Schema and data is always the same. In case due to unavailability of primary server, standby server acts as the primary server (This has to be automated). The reason for unavailability could be any like maintenance work on primary server, network or hardware failure at primary server. The last and the most important thing is that users from this country where we will setup standby database will insert/update data on the primary server BUT queries and reporting will be done from this newly created standby data.
Kindly recomend the best Data Guard in this scenerio and kindly correct me where I am wrong.
Thanks, Imran

A logical standby has various limitations on things like data types. It's also a much more complex architecture, which makes it more likely that something will break periodically and require attention. Applying redo to a physical standby is code that has been around forever and is as close to bullet-proof as you'll get. And you would generally prefer to fail over to a physical standby-- if you do things like create new objects in the logical standby, you may have to get rid of those objects during a failover to get acceptable OLTP performance.
Justin

Data Guard phys. standby creation failing in 10g EM?

All,
I'm working on setting up Oracle Data Guard in a test environment at my company. It was suggested to me to go through the GUI to set up a physical standby database and automate the management of my DG setup.
However, the several attempts that I have made result in the process failing during the "Create Standby Database" and the process fails with the following errors:
dgcreate.recoverStby: ALTER DATABASE RECOVER CANCEL
dgcreate.recoverStby: ALTER DATABASE OPEN READ ONLY
SQL Error: ORA-16004: backup database requires recovery
ORA-01152: file 1 was not restored from a sufficiently old backup
ORA-01110: data file 1: '/u01/app/oracle/product/10.2.0/db_1/oradata/oratstdg/system01.dbf' (DBD ERROR: OCIStmtExecute)
Can anyone pass along any ideas as to where the issue might be? I would really appreciate it - I need this up and going ASAP. Thanks!
Matt Gordon

Ugonic,
I actually did create a new Physical Standby Database. I did not have an existing database configured as a standby database. In fact, the standby server that I used only had the Oracle binaries installed on it - there was no database on that system.
Additionally, I did not have a saved configuration to use, so I generated completely new files and a new configuration.
I left the screen alone for over an hour before checking the status and seeing these errors in the log - I am wondering if anybody else has encountered this same issue.
On a side note, I've stumbled my way further into this process and now have a functional DG configuration. However, I can only switchover from SQL*Plus - the GUI way fails. When I click on Verify in the GUI I get the following log:
Initializing.
Connected to instance fcoracle1.cdps.cdp:oratest1
Starting alert log monitor...
Updating Data Guard link on database homepage...
WARNING: Database oratest2.cdps.cdp is not discovered.
Data Protection Settings:
Protection mode : Maximum Performance
Log Transport Mode settings:
oratest1.cdps.cdp: ASYNC
oratest2.cdps.cdp: ASYNC
Checking standby redo logs.....OK
Checking Data Guard status
oratest1.cdps.cdp : Normal
oratest2.cdps.cdp : Normal
Checking Inconsistent Properties
Checking agent status
oratest1.cdps.cdp ... WARNING: Undefined subroutine &main::executeSQLPlusSYSDBA called at - line 5.
WARNING: Switchover or failover may not succeed as a result.
oratest2.cdps.cdp ... WARNING: Undefined subroutine &main::executeSQLPlusSYSDBA called at - line 5.
WARNING: Switchover or failover may not succeed as a result.
Switching log file 235.Done
Checking applied log on oratest2.cdps.cdp....OK
Processing completed.
Have you experienced this problem and/or do you have any suggestions to resolve it?
Matt

Rman clone ? duplicate database ? data guard ? standby database?

hey there !!
What is the difference between Rman clone , duplicate database , data Guard , standby db?
1 more thing , standby database and duplicate database are same??

RMAN Clone : you take backup of a database on one server ,then take it to other server ,again use RMAN to restore the database,A lot manual intervention is needed in this method
RMAN DUPLICATE: same as above just that manual intervention is less. With 11gR2 there active database duplication in which you can clone your test database directly from production database without taking and then transferring the backup to test server.
Standby Database :they are of two types Physical and logical.The setup is done using RMAN with any of the above methods.Standby is the in-sync (can have some delay) version of primary database either block by block which is physical standby configuration or SQL statment wise which is logical standby.
Data Guard:This is also a standby configuration.Here the failover and switchover are automated with the help of DGMGRL utility.In manual standby this same can be done via SQL*PLUS using sql commands

Read-only agent synching to a Data Guard physical standby?

Hi all,
we are trying to use TimesTen 11.2.2.4.1 as a read-only memory cache for an Oracle 11.2.3.0.7 schema on Linus RedHat 6.3, while using Oracle Data Guard to replicate the Oracle instance over geographically remote sites. On each site we would like to have two TT instances synchronizing with the local Oracle 11g instance. This works fine against the master DB, but are the TT agents going to be able to synchronize against physical standby instances?
The problem it seems is that the TT agent uses dedicated structures in the Oracle master instance (related to the cache grid), which are going to be replicated into the standby instances. Is the TT agent able to use the read-only, replicated structures to complete synchronization, or is this approach unworkable? What would be your advise as how to achieve this?
Thanks for your help,
Chris

Hi again,
so after testing a little bit it appears that this approach works indeed, at least against a limited number of manual DML operations. What I needed to do on the slave instance to have it working is the following:
1 - Entirely exclude TTADMIN and TIMESTEN schemas from the Data Guard replication:
ALTER DATABASE STOP LOGICAL STANDBY APPLY;
execute dbms_logstdby.skip(stmt => 'SCHEMA_DDL', schema_name => 'TTADMIN', object_name => '%');
execute dbms_logstdby.skip(stmt => 'SCHEMA_DDL', schema_name => 'TIMESTEN', object_name => '%');
execute dbms_logstdby.skip(stmt => 'DML', schema_name => 'TTADMIN', object_name => '%');
execute dbms_logstdby.skip(stmt => 'DML', schema_name => 'TIMESTEN', object_name => '%');
ALTER DATABASE START LOGICAL STANDBY APPLY IMMEDIATE;
2 - Erase both schemas from the local instance:
DROP USER TTADMIN CASCADE;
DROP USER TIMESTEN CASCADE;
CREATE USER TTADMIN etc
3 - Temporarily disable the database guard while creating the local ttCache structures, as the scripts seem to need to set a table-level lock on the source table:
ALTER DATABASE GUARD NONE;
ttIsql> CREATE READONLY CACHE GROUP etc
ALTER DATABASE GUARD STANDBY;
4 - Unset the "Fire_Once_Only" property for the local TTADMIN triggers:
execute dbms_ddl.set_trigger_firing_property(trig_owner=> 'TTADMIN', trig_name=> 'TT_06_70560_T', fire_once => FALSE);
At that point the cache seems to replicate properly in the most simple cases. I will try to test with some substantial load and against DG failovers to see how this behaves.
Regards,
Chris

Data Guard or Standby Database

Hi all,
Im confused about "physical standby" and "logical standby". Can an entire database export be logical standby? Or the logical standby is only the output of RMAN backup.
Thanks

Physical Standby
A physical standby database is kept synchronized with the primary database, through Redo Apply i.e., block-to-block transfer which recovers the redo data received from the primary database and applies the redo to the physical standby database.
The database schema, including indexes, are the same.
Logical Standby
The logical standby database is kept synchronized with the primary database though SQL Apply, which transforms the data in the redo received from the primary database into SQL statements and then executing the SQL statements on the standby database.
In Logical standby the physical oraganization and structure will be different.
The below link helps you to know much about the difference between Physical and Logical Standby.
http://www.dba-oracle.com/t_difference_logical_physical_standby_database.htm ----------by Burleson
Hope it would be helpful. :)

11g Data guard 建physical standby database配置相关问题

General information
OS:red hat Linux 2.6.32-200.13.1.el5uek x86_64(primary,standby)
Home version:11.2.0.3(primary,standby)
Situation:
实验用库，想学习data guard，在另一个服务器上克隆了一个HOME并按照官方文档http://docs.oracle.com/cd/E11882_01/server.112/e25608/create_ps.htm#i1225703
中去实验，步骤均按照官方文档来,最后在mount standby库时校验select sequence# from v$archived_log没有记录，出错日志如下（从mount开如截取）
standby alert_dbacoe.log
Error logs
alter database mount
Completed: alter database mount
Error 604 received logging on to the standby
+FAL[client, ARC2]: Error 604 connecting to PRIMARYSV for fetching gap sequence+
Errors in file /u05/oracle/app/oracle/diag/rdbms/standby/dbacoe/trace/dbacoe_lgwr_1912.trc:
ORA-00313: open failed for members of log group 1 of thread 1
ORA-00312: online log 1 thread 1: '/u04/app/oracle/redundancy/dbacoe/redo01_s.log'
ORA-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory
Additional information: 3
ORA-00312: online log 1 thread 1: '/u03/app/oracle/oradata/dbacoe/redo01.log'
ORA-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory
Additional information: 3
Errors in file /u05/oracle/app/oracle/diag/rdbms/standby/dbacoe/trace/dbacoe_lgwr_1912.trc:
ORA-00313: open failed for members of log group 1 of thread 1
ORA-00312: online log 1 thread 1: '/u04/app/oracle/redundancy/dbacoe/redo01_s.log'
ORA-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory
Additional information: 3
ORA-00312: online log 1 thread 1: '/u03/app/oracle/oradata/dbacoe/redo01.log'
ORA-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory
Additional information: 3
Errors in file /u05/oracle/app/oracle/diag/rdbms/standby/dbacoe/trace/dbacoe_lgwr_1912.trc:
ORA-00313: open failed for members of log group 2 of thread 1
ORA-00312: online log 2 thread 1: '/u04/app/oracle/redundancy/dbacoe/redo02_s.log'
ORA-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory
Additional information: 3
ORA-00312: online log 2 thread 1: '/u03/app/oracle/oradata/dbacoe/redo02.log'
ORA-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory
Additional information: 3
Errors in file /u05/oracle/app/oracle/diag/rdbms/standby/dbacoe/trace/dbacoe_lgwr_1912.trc:
ORA-00313: open failed for members of log group 2 of thread 1
ORA-00312: online log 2 thread 1: '/u04/app/oracle/redundancy/dbacoe/redo02_s.log'
ORA-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory
Additional information: 3
ORA-00312: online log 2 thread 1: '/u03/app/oracle/oradata/dbacoe/redo02.log'
ORA-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory
Additional information: 3
Errors in file /u05/oracle/app/oracle/diag/rdbms/standby/dbacoe/trace/dbacoe_lgwr_1912.trc:
ORA-00313: open failed for members of log group 3 of thread 1
ORA-00312: online log 3 thread 1: '/u04/app/oracle/redundancy/dbacoe/redo03_s.log'
ORA-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory
Additional information: 3
ORA-00312: online log 3 thread 1: '/u03/app/oracle/oradata/dbacoe/redo03.log'
ORA-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory
Additional information: 3
Errors in file /u05/oracle/app/oracle/diag/rdbms/standby/dbacoe/trace/dbacoe_lgwr_1912.trc:
ORA-00313: open failed for members of log group 3 of thread 1
ORA-00312: online log 3 thread 1: '/u04/app/oracle/redundancy/dbacoe/redo03_s.log'
ORA-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory
Additional information: 3
ORA-00312: online log 3 thread 1: '/u03/app/oracle/oradata/dbacoe/redo03.log'
ORA-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory
Additional information: 3
ARC3: Archival started
ARC0: STARTING ARCH PROCESSES COMPLETE
Addition:
因为是实验用库，所以结构有点怪，大体如下:
Primary
数据文件在BASE所在的oradata下即/u03/app/oracle下,
redo文件每组两份，一份在oradata下，另一份在同机的/u04/app/oracle/redundancy中（以_s结尾命名）
archive文件在/u04/app/oracle/fast_recovery_area中
standby
数据文件在/u05/oracle/app/oracle/oradata下
redundancy中的redo文件随着该目录放到oradata下的red中了
archive文件目录则是/u05/oracle/app/oracle/fast_recovery_area中
接下来是对应的init文件与TNS信息
Primary端的init主要信息
db_unique_name='PRIMARY'
fal_client='PRIMARYSV'
fal_server='STANDBYSV'
log_archive_config='DG_CONFIG=(PRIMARY,STANDBY)'
log_archive_dest_1='location=/u04/app/oracle/fast_recovery_area/DBACOE/archivelog VALID_FOR=(ALL_LOGFILES,ALL_ROLES) db_unique_name=PRIMARY'
log_archive_dest_2='service=STANDBY ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) db_unique_name=STANDBY'
log_archive_dest_state_1='enable'
log_archive_dest_state_2='enable'
db_file_name_convert='/u05/oracle/app/oracle/oradata/dbacoe','/u03/app/oracle/oradata/dbacoe',/u05/oracle/app/oracle/oradata/red','/u04/app/oracle/redundancy'
log_file_name_convert='/u05/oracle/app/oracle/fast_recovery_area/DBACOE/archivelog','/u04/app/oracle/fast_recovery_area/DBACOE/archivelog'
Standby端的init信息
log_archive_config='DG_CONFIG=(PRIMARY,STANDBY)'
db_unique_name='STANDBY'
db_file_name_convert='/u03/app/oracle/oradata/dbacoe','/u05/oracle/app/oracle/oradata/dbacoe','/u04/app/oracle/redundancy','/u05/oracle/app/oracle/oradata/red'
log_file_name_convert='/u04/app/oracle/fast_recovery_area/DBACOE/archivelog','/u05/oracle/app/oracle/fast_recovery_area/DBACOE/archivelog'
log_archive_dest_1='location=/u05/oracle/app/oracle/fast_recovery_area/DBACOE/archivelog VALID_FOR=(ALL_LOGFILES,ALL_ROLES) db_unique_name=STANDBY'
log_archive_dest_state_1=enable
log_archive_format=log%t_%s_%r.arc
log_archive_dest_2='SERVICE=PRIMARYSV ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=PRIMARY'
log_archive_dest_state_2=enable
TNS信息如下(均能tnsping通）
PRIMARYSV =
+(DESCRIPTION =+
+(ADDRESS = (PROTOCOL = TCP)(HOST = db1.ad.xxxxxx.com)(PORT = 1521))+
+(CONNECT_DATA =+
+(SERVER = DEDICATED)+
+(SERVICE_NAME = dbacoe)+
+)+
+)+
STANDBYSV =
+(DESCRIPTION =+
+(ADDRESS = (PROTOCOL = TCP)(HOST = db2.ad.xxxxx.com)(PORT = 1529))+
+(CONNECT_DATA =+
+(SERVER = DEDICATED)+
+(SERVICE_NAME = dbacoe)+
+)+
+)+
PS：请大家花费一点点时间阅读一下这冗长的段子，刚开学data guard，参数上设置都很生疏，（光照着文档做了，是否有redo log相关的操作遗漏？）敬请指教
Edited by: 961394 on Dec 10, 2012 1:52 AM
Edited by: 961394 on 2012-12-10 上午4:58

结贴了，感谢maclean一群的Jesse Lui帮我解决问题

Data Guard and Standby - howto shutdown servers and bring them up again

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