10g Data Guard Install Questions... Solaris 9

Firstly, I've done several Failsafe installes on Wintel platforms, but I'm having a tough time getting started installing Dataguard on Solaris. According to the manual:
Oracle® Data Guard Broker
10g Release 1 (10.1)
Part Number B10822-01
"The Oracle Data Guard graphical user interface (GUI), which you can use to manage broker configurations, is installed with the Oracle Enterprise Manager software."
I don't see any link or otherwise access to Data Guard via the 10g Enterprise Manager. Is there something that I missed during install that will allow me access Data Guard GUI?
I'm stuck
http://download-east.oracle.com/docs/cd/B14117_01/server.101/b10822/concepts.htm#sthref14

rajeysh wrote:
refer the link:- hope this will help you.
http://blogs.oracle.com/AlejandroVargas/gems/DataGuardBrokerandobserverst.pdf
http://oracleinstance.blogspot.com/2010/01/configuration-of-10g-data-guard-broker.html
http://gjilevski.wordpress.com/2010/03/06/configuring-10g-data-guard-broker-and-observer-for-failover-and-switchover/
Good luck.
SQL> show parameter broker
NAME                                 TYPE        VALUE
dg_broker_config_file1               string      /u03/KMC/db/tech_st/10.2.0/dbs
                                                 /dr1KMC_PROD.dat
dg_broker_config_file2               string      /u03/KMC/db/tech_st/10.2.0/dbs
                                                 /dr2KMC_PROD.dat
dg_broker_start                      boolean     FALSE
SQL>so i need only:
ALTER SYSTEM SET DG_BROKER_START=true scope=both;only to act in dgmgrl.
please confirm me ......

Similar Messages

What is the role of Lns process in oracle 10g data guard

Hi ,
plz help me out to find out the actual working of lns process in oracle 10g data guard
when i use SYNC redo transport
the output of v$managed_stanbdy is like that ..
PROCESS PID STATUS CLIENT_PROCESS GR# SEQ#
ARCH 9258 CLOSING ARCH 2 498
ARCH 9260 CLOSING ARCH 1 499
ARCH 9262 CLOSING ARCH 2 496
ARCH 9264 CLOSING ARCH 1 497
LGWR 9206 CLOSING LGWR 2 482
its not display any info about lns,thats means lns is not working in SYNC redo transport mode ?
but if i changed it to ASYNC then the out put of v$managed_stanbdy is like this ..
PS PID STS CPS GR# SEQ#
ARCH 9258 CLOSING ARCH 1 509
ARCH 9260 CLOSING ARCH 2 510
ARCH 9262 CLOSING ARCH 1 505
ARCH 9264 CLOSING ARCH 2 508
LGWR 9206 CLOSING LGWR 1 503
LNS 10528 CLOSING LNS 2 510
Now it display all the info about lns process...
i read in oracle documentation that lns process send redo data from primary,( through network service ) to RFS on standby side.
but first output means that lns is not working,if not then which process send redo from primary to RFS on standby ?
i also read in some blog that lgwr use some extra buffer size from primary db SGA ,to write redo in that buffer ,ans lns read redo from that buffer and send it to RFS on stanby side,
i m totally confused ..can u plz help me with correct logic behind this .
thanx in advance.

Hello,
On the primary database when you run the v$managed_standby, it shows up the LNS process as this process sends redo info to the standby database and on the standby database the RFS process receives the redo information.
So on the primary database when you query the v$managed_standby, it shows up LNS and on the standby database when you query the v$managed_standby it shows up RFS. Please let us know where you are running the query.
Refer this http://datadisk.co.uk/html_docs/oracle_dg/architecture.htm
969752
Handle:     969752
Status Level:     Newbie
Registered:     Nov 6, 2012
Total Posts:     9
Total Questions:     2 (2 unresolved)
Name     Hemendra Singh
Location     NoidaPlease consider closing your questions by providing appropriate points and marking it as answered. Please keep the forum clean !

Data Guard Administration Question.... (10gR2)

After considerable trial and error, I have a running logical standby between 2 10gR2 databases.
1) During the install of the primary database, I didn't comply fully to the OFA standard (I was slightly off on the placement of my database devices). During the Data Guard configuration, the option of "converting to ofa" was selected (per a metalink article that I read regarding a problem choosing to keep the filenames of the primary the same). Of course now I have an issue creating a tablespace on the Primary when keeping the non-OFA directory stucture. When it attempts to do the same on the Standby I'm getting the error that it cannot create the datafile. Makes sense, but what should I do in the future? Create the non-OFA directory structure on the Standby (assuming it would then create the file)? Is't there a filename conversion parameter that handles this as well?
2) I got myself into a pinch this afternoon, partly due to #1. I am importing a file from another instance onto the Primary to begin testing reports on the Secondary. Prior to the import I created a tablespace (which is what got me to problem #1), proceeded to create the owner of the schema that's going to be imported, then performed the import. Now the apply process is erroring and going off line every few seconds as it works it's way through the "cannot create table" errors that the import is running into on the Secondary. How do I handle a large batch of transactions like this? Ultimately I would like to get back to square 1... no user, and no imported data in the Primary and the apply process online.
Thanks:
Chris

So what I finally did was turned dg offline. Created the tablespace on the secondary, and then the user and then turned apply back online. The import proceeded fairly smoothly. Problem resolved.
However, that I still need some insight as to exactly how the DB_FILE_NAME_CONVERT and LOG_FILE_NAME_CONVERT parameters work. I have LOG_FILE_NAME_CONVERT setup (correctly I think) but I get a warning message in DG that sez the configuration is inconsistent with the actual setup.
Here's the way things are setup:
I have 3 redo logs:
primary (non-ofa):
/opt/oracle10/product/oradata/ICCORE10G2/redo01.log
... redo02.log
... redo03.log
secondary (ofa):
/opt/oracle10/product/10.2.0.1.0/oradata/ICCDG2/redo01.log
... redo02.log
... redo03.log
LOG_FILE_NAME_CONVERT=('/opt/oracle10/product/oradata/ICCORE10G2/', '/opt/oracle10/product/10.2.0.1.0/oradata/ICCDG2/')
Is the above parameter set correctly?
DB_NAME_FILE_CONVERT is unset as of now, but the directory structure above is the same. I assume the parameter needs to be set just like LOG_FILE_NAME_CONVERT above.
Thanks

Oracle 10g Data Guard

Hello to all.
I am looking forward to implement Logical standby database for one of my clients. I want to know about licensing implications for the same. Does creation of logical standby database in Oracle 10g require a License?? If if it does then what kind of license is required????
Current setup :
RHEL 5.5 64 bit
Oracle Database 10.2.0.4 (Production Server)
Oracle Database 10.2.0.4 (Physical Standby Server)
We are having Enterprise Edition licenses for both.

Start by posting in the relevant forum: {forum:id=849}

Oracle Data Guard 9i

This is a quote from an Oracle publication on Oracle Data Guard 9i.
"Oracle Data Guard's new SQL Apply feature creates a "logical standby" that enables continuous access to a working copy of your primary database. With SQL Apply, the standby database is continuously available for reporting and other operations, while always at-the-ready for unplanned failovers. Data Guard provides log shipping, remote mirroring, zero-data-loss disaster protection, and a single point of control and automation. "
My question is: Is the standby database open in read-write or read-only mode?
If, its only read, is there ANY other way read-write version of a database could be created at a remote site besides:
a) Complete copying - duplicate database at remote site open in read-write.
b) Distributed database - replication - remote users access their own version and the two keep themselves in sync.
c) Parallel server - one database - two instances.

Data Guard is available for Linux (within Oracle9i).
It's a tool to make it much more easier to create a standby
database, but I don't think it's required!
Regards,
Thomas.
Is Oracle 9i data guard for Linux available??
Well, my real question is, I need to setup 9i standby database
on Linux. Do I need data guard installed in order to setup
standby database??

Data Guard -- v$archive_log applied column shows wrong info

I'm playing with 10g Data Guard. Both Primary and Physical Standby are in Maximum Availability mode. When I query v$archived_log column applied for dest_id=2 (which is physical standby) for some files it shows NO value but alert log on both primary and standby shows file transferred info. Even on physical standby v$archived_log shows log is applied YES value. My question is : So why is Primary database's v$archived_log shows value NO ?
I am trying to setup crontab so that once I see value YES in primary's v$archived_log for dest_id = 2 then I can backup archived log file and delete it from primary database machine. But my perl script won't work because primary v$archived_log shows value NO for applied column for dest_id = 2.
Thanks.

Hi OrionNet,
I think I am looking at the wrong column and also on the wrong database for what I need to do. Let me explain what I am trying to achieve.
I have a shell script to check if archived logs are shipped from Primary to Standby AND if Standby successfully applied it or not. My shell script was looking at Primary databases using following query
select sequence#, archived, applied
from v$archived_log
where dest_id = 2 -- running on Primary BUT looking at standby archived log destination
order by sequence# ;
SEQUENCE# ARCHIEVED APPLIED
=====================
58 YES YES
59 YES YES
*60* YES NO
61 YES YES
After reading [v$archived_log reference entry in manual|http://download.oracle.com/docs/cd/B19306_01/server.102/b14237/dynviews_1016.htm#REFRN30011]
APPLIED Indicates whether the archivelog has been applied to its corresponding standby database (YES) or not (NO). The value is always NO for local destinations.
This column is meaningful at the physical standby site for the ARCHIVED_LOG entries with REGISTRAR='RFS' (which means this log is shipped from the primary to the standby database). If REGISTRAR='RFS' and APPLIED is NO, then the log has arrived at the standby but has not yet been applied. If REGISTRAR='RFS' and APPLIED is YES, the log has arrived and been applied at the standby database.
You can use this field to identify archivelogs that can be backed up and removed from disk.
I think I should use following query on Standby database and not on primary database
select sequence#, registrar, applied
from v$archived_log
where dest_id = 1 -- query running on standby so dest_id = 1 which is standby archive log destination
and registrar = 'RFS'
order by sequence# ;
SEQUENCE# REGISTRAR APPLIED
=====================
58 RFS YES
59 RFS YES
*60* RFS YES
61 RFS YES
So, my shell script should connect to standby database from primary database and evaluate which archive logs to delete after backup from primary machine.
Now I'll generate some gaps on Standby and check query again to make sure what I understand and expect is correct.
Hope I am clear now. Thanks for your help. My bad, I didn't read the manual correctly the first time.

Data Guard across platforms?

Hi All,
Does Oracle 10g data guard work across platforms; like primary db in Windows standby in linux or primary in solaris and standby in aix or something like that?...
Thanks & Regards,
Rosh

Does Oracle 10g data guard work across platforms; like primary db in Windows standby in linux or primary in solaris and standby in aix or something like that?...No, its not possible,both server should have same operating system,but u can achieve it by using oracle streams.its works with different platforms.
Kuljeet

Init SID .ora during configuration of Data Guard - advice required

Hi All,
I am looking to implement data guard across 2 RAC clusters. One cluster will be primary and the other is for Disaster Recovery.
I have already set up the two 11g R 2 RAC clusters on RHEL 5 and now need some pointers to good docs for data guard install.
Can some one direct me to good step by step info for configuring data guard between to RAC clusters - detailed explanations of each step would be useful too, in particular around the init.ora file configuration changes between the primary and DR sites
Much appreciated
Steve

Hi Steve,
look at the MAA Whitepapers:
http://www.oracle.com/technetwork/database/features/availability/oracle-database-maa-best-practices-155386.html
There are very good ressources in setting up RAC DG environments like:
Data Guard 11g Installation and Configuration Best Practices on Oracle RAC
Rapid Oracle RAC Standby Deployment: Oracle Database 11g Release 2
Setup Guide: Creating a RAC Logical Standby Database for a RAC Primary Database
Client Failover in Data Guard Configurations for Highly Available Oracle Databases
a.s.o.
Sebastian

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!

A Data Guard Question

Dear experts,
This time I have a question regarding Data Guard.
Database:      Oracle 10g Release 2 (10.2.0.3)
OS:          IBM - AIX 5.3 - ML-5
Data Guard:     Physical Standby
We have multiple data guard configuraiton in place and all of them are configured in "MAXIMUM PERFORMANCE" mode.
Currently, we have a separate mount point for archive logs (say /dbarch) on both primary and standby servers.
Once log is archived on primary, it is shipped to standby server and applied.
I think we are wasting space by allocating (/dbarch) on standby server, instead we can share "/dbarch" of primary with standby using NFS.
I remember reading such document. I tried to search in Oracle documentation, google, and metalink for the same but failed :((
Any help in this regard will be very helpful.
Thanks in advance.
Regards

From a DR perpespective, this sounds like a recipe for losing data.
If your primary site has a disaster, and there are logs that have not been applied to the standby then you will never be able to apply them as they will have been lost in the crash.
The point of having the standby is to eliminate a single point of failure - and this mechanism is reintroducing it!
jason.
http://jarneil.wordpress.com

How to access Data Guard option in Oracle 10g OEM

Hi All,
I have Oracle 10g ENTERPRISE EDITION on Unix envoirement. I want to setup logical standby Database through Data Guard technology. But when I brows through OEM I do not find Link for DATA GUARD????
1) How to access Data Guard option from oracle 10g OEM.
2) Does It come with Enterprise Edition OR I have to install it separately.
Regards,
Darshan

I am managing almost everything through EM Grid Control. It is easy to setup and configure.
Anyways, if you have read the documentation on
Oracle® Data Guard Concepts and Administration and setup your environment accordingly then you should not have any problems. Atleast I can assure you that your production database will not be affected by it.
Just make sure that you follow each step and read thoroughly. If you have spare machines then you can test and record your configuration before performing it on your production db. This link will provide you with the information on DataGuard.
http://download-uk.oracle.com/docs/cd/B19306_01/server.102/b14239/concepts.htm
If you think that way then you will never be able to do any new stuff since you will always fear that something might go wrong. Go ahead pal, try it on test machines and you will know that it is not that difficult.
There are real experts who help people like us in this forum and I know that they are doing a pretty good job.
All the best.
Rgds
Adnan

Data Guard questions

Hello all,
I am a newbie to data guard.
1) Unless using the real time apply feature, standby redo logs must be archived before the data can be applied to the standby database. Am I correct in my understanding?
2) Can we keep standby database in higher version(11i) and primary database in 10g?
3) Do I need to left blank LOG_ARCHIVE_DEST_2 parameter on Standby Database init parameter?
4) Can we face any problem if we have different LOG_ARCHIVE_FORMAT on the primary and standby site?
Waiting for your valuable reply.
With regards

994269 wrote:
Hello all,
I am a newbie to data guard.
Wel come to the data guard>
1) Unless using the real time apply feature, standby redo logs must be archived before the data can be applied to the standby database. Am I correct in my understanding?
Not uderstand your question.
2) Can we keep standby database in higher version(11i) and primary database in 10g?
No. Both the version should be same.
3) Do I need to left blank LOG_ARCHIVE_DEST_2 parameter on Standby Database init parameter?
Yes.Until you dont required to send archived log from standby database to any other database. If you have cascaded setup then you would required to set the parameter as required.
4) Can we face any problem if we have different LOG_ARCHIVE_FORMAT on the primary and standby site?
Yes. We should keep default log format or shourl be same.
Waiting for your valuable reply.
With regards

Question related to Physical Data Guard (Oracle 10gR2)

Hi,
I have a question regarding Physical Data Guard in a RAC environment (Oracle 10g Release 2).
Say we have 4-node RAC in production and DG is also configured for RAC but number of nodes differ in production and DG. Which node in DG will apply log from production if?
1) If there is 2 node RAC setup in DG?
2) If there is 4 node RAC setup in DG?
3) If there is 5/6/7/... node RAC setup in DG?
Probably, this is a very simple and basic question but your expertise would be of great help.
Regards

Hi - Only one instance performs the recovery, but more than one standby node can be an archive log destination for the primary instances.

Installing oracle 10g release 2 on spark solaris!! urgent help!

hi guys!
Am installing oracle 10g r2 on spark sun solaris. I did install the software without any pb, but when installing the database using dbca, I have this errors.
ORA-27154: post/wait create failed
ORA-27300: OS system dependent operation:semget failed with status: 28
ORA-27301: OS failure message: No space left on device
ORA-27302: failure occurred at: sskgpcreates
Edited my kernel parameters and in the /etc/system file, ai've added
set noexec_user_stack=1
set semsys:seminfo_semmni=100
set semsys:seminfo_semmns=1024
set semsys:seminfo_semmsl=256
set semsys:seminfo_semvmx=32767
set shmsys:shminfo_shmmax=4294967295
set shmsys:shminfo_shmmin=1
set shmsys:shminfo_shmmni=100
set shmsys:shminfo_shmseg=10
Space aint an issue and dont know how to over come this error!
Should ai just install the db using scripts and run the neccessary .sql scripts instead of going through dbca?
junior DBA in distress.

This appears to be because of low semaphores setting. Did you reboot your server after making the /etc/system parameter changes ?
-Ramesh

Question on db_unique_name in init.ora for Data Guard

I need to set up only one physical standby on a different box (at a different location) for the primary db in production.
OS: Sun Sparc Solaris 10
Oracle: 10.2.0.3
Can I use the same db_unique_name in init.ora for both primary and standby DBs?
What are the minimal parameters required by Data Guard I have to specify in the init.ora in my case?
Could anyone please post an example of init.ora for both primary and standby DBs?
Thanks very much in advance.

http://download.oracle.com/docs/cd/B19306_01/server.102/b14239/create_ps.htm#i63561

10g Data Guard Install Questions... Solaris 9

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