Multiple standby database about FAL_SERVER and FAL_CLIENT parameter in DG

Hi,
I am little bit confused about FAL_SERVER and FAL_CLIENT parameter in Data Guard.
We are planning to configure multiple standby database in Data Guard environment. Let Assume that, i have production db named as 'PROD' and multiple standby name like standby1,standby2, standby3.
My Environment is:_
DB Version: 11.2.0.1
OS Version: OE5LU6
So in this case how to specify above Net service name in spfile on production server and also on other standby server.
Kindly Suggests me.
Regards
Athish

Athish wrote:
Hi,
I am little bit confused about FAL_SERVER and FAL_CLIENT parameter in Data Guard.
We are planning to configure multiple standby database in Data Guard environment. Let Assume that, i have production db named as 'PROD' and multiple standby name like standby1,standby2, standby3.
My Environment is:_
DB Version: 11.2.0.1
OS Version: OE5LU6
So in this case how to specify above Net service name in spfile on production server and also on other standby server.
Kindly Suggests me.
Regards
AthishFAL_CLIENT is Oracle TNS service of the local system and FAL_SERVER is Oracle TNS service of remote system.
if you have three standby databases of primary , then from primary you must have three values in FAL_SERVER so that archives will be send to the all destinations.
and From the stadnby database, FAL_SERVER should be the oracle TNS service where you receiving the archive log files,
Note:- If you have RAC primary then mention each service differentiated by commas as shown example below.
From standby to Primary RAC:- FAL_SAERVER='PROD1','PROD2'
These parameters are dynamic, so that you can alter them at any time.
HTH.

Similar Messages

Create multiple standby databases of primary database

Hi,
I have to create 2 standby databases of a single primary database,
where can i get the stpe for the same?
Thanks

user10745179 wrote:
What about FAL_CLIENT parameters in primary?
how to set the values of the above parameter in priamry for second standby database.?
Thanks,In your case do need setting FAL_CLIENT/SERVER in primary database,set these parameter correctly in your standby database.Refer below note
*FAL_SERVER And FAL_CLIENT Settings For Cascaded Standby [ID 358767.1]*

FAL_SERVER and FAL_CLIENT in 11.2

DB versions: 11.2.0.2, 11.2.0.3
Platform : RHEL 6, Solaris 10
2-Node RAC, Maximum Availability Mode
Starting from 11.2 , FAL_SERVER and FAL_CLIENT parameters do not have to be set at the standby DB side. Right ?

Y.Ramlet wrote:
DB versions: 11.2.0.2, 11.2.0.3
Platform : RHEL 6, Solaris 10
2-Node RAC, Maximum Availability Mode
Starting from 11.2 , FAL_SERVER and FAL_CLIENT parameters do not have to be set at the standby DB side. Right ?FAL_SERVER & FAL_CLIENT used for the gap resolution, FAL_CLIENT is the system receiving archivelogs. So better to configure where this can work efficiently to resolve the GAP
Read parameter in detail here
FAL_CLIENT --> http://docs.oracle.com/cd/E11882_01/server.112/e17110/initparams086.htm
FAL_SERVER --> http://docs.oracle.com/cd/E14072_01/server.112/e10820/initparams081.htm
Apologize, for the latest patchset of 11.2 you no need to mention FAL_CLIENT. Mseberg mentioned perfect link. Thank you.
Edited by: CKPT on Feb 5, 2013 9:33 PM

FAL_SERVER and FAL_CLIENT - Please help me

Sir,
What is the difference between FAL_SERVER and FAL_CLIENT?
How we can configure this on Primary and Satndby databases? What
will be the changes happen to this parameters at the time of
Switchover and Failover?
Please help me.
regards
Mathew

Note: Primary Database Name = Chicago.
Standby Database Name = Boston
Example 3-2 Primary Database: Standby Role Initialization Parameters
FAL_SERVER=boston
FAL_CLIENT=chicago
DB_FILE_NAME_CONVERT=
'/arch1/boston/','/arch1/chicago/','/arch2/boston/','/arch2/chicago/'
LOG_FILE_NAME_CONVERT=
'/arch1/boston/','/arch1/chicago/','/arch2/boston/','/arch2/chicago/'
STANDBY_FILE_MANAGEMENT=AUTO
FAL_SERVER
Specify the Oracle Net service name of the FAL server (typically this is the database running in the primary role). When the Chicago database is running in the standby role, it uses the Boston database as the FAL server from which to fetch (request) missing archived redo log files if Boston is unable to automatically send the missing log files. See Section 5.8.
FAL_CLIENT
Specify the Oracle Net service name of the Chicago database. The FAL server (Boston) copies missing archived redo log files to the Chicago standby database. See Section 5.8.
Example 3-3 Modifying Initialization Parameters for a Physical Standby Database
INSTANCE_NAME=boston
FAL_SERVER=chicago
FAL_CLIENT=boston
FAL_CLIENTSpecify the Oracle Net service name of the FAL server (typically this is the database running in the primary role). When the Boston database is running in the standby role, it uses the Chicago database as the FAL server from which to fetch (request) missing archived redo log files if Chicago is unable to automatically send the missing log files. See Section 5.8.
FAL_CLIENT
Specify the Oracle Net service name of the Boston database. The FAL server (Chicago) copies missing archived redo log files to the Boston standby database. See Section 5.8.
>>>>http://download-uk.oracle.com/docs/cd/B14117_01/server.101/b10823/create_ps.htm#68627
Message was edited by:
user526020

Multiple Standby Database

Hello Folks,
DB Version : 10.2.0.4
OS : Solaris 5.8
I am planning to configure 2nd standby database (Physical ) for one of the my production database.
Right now it's configured with 1 physical standby database. If any one has previous experience or any document link please update the forum.
Thanks for your time.

primary database parameter
*.fal_client=' '
*.fal_server=' '
standby database 1
*.fal_client='stby1'
*.fal_server='primary'
standby 2 parameter
*.fal_client='stby2'
*.fal_server='stby1','primary'
more that that we have to set log_archive_dest_n parameters correctly
and db_file_name_convert and log_file_name_convert parameters , if it is needed.
configuring listener.ora and tnsnames.ora files ....
i plan to post a documentation of creating and adding physical and logical standby databases in different hosts..
please wait this month end , i plan to post it in my blog
http://oracleinstance.blogspot.com
Edited by: Rajeshkumar Govindarajan on May 6, 2010 2:31 PM
Edited by: Rajeshkumar Govindarajan on May 6, 2010 2:36 PM

Multiple Standby Databases on same RAC nodes.

We have a 3 node Oracle 10gR2 RAC production environment on site A and a 3 node Oracle 10g RAC standby environment on site B. Both use like HW and OS - HP BL45p with RHEL AS 4.x.
Can we have heterogeneous standby databases(logical and physical) running on the same RAC nodes?
Can the 2 apply processes (MRP-manageed recovery process & LSP-logical standby process) coexists on the same set of nodes in a cluster at the same time. Are there any conflicts or limitations?
Is there any documentation that supports this?

Would Active Data Guard give you the best of both worlds?
The caveat might be your SID_LIST_LISTENER setup.
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = /u01/app/oracle/product/11.2.0)
(PROGRAM = extproc)
(SID_DESC =
(global_dbname = <database1>_DGMGRL.yourdomain)
(ORACLE_HOME = /u01/app/oracle/product/11.2.0)
(sid_name = <database1>)
(SID_DESC =
(global_dbname = <database2>_DGMGRL.yourdomain)
(ORACLE_HOME = /u01/app/oracle/product/11.2.0)
(sid_name = <database2>)
I have a server with ten standbys on it currently and no issues.
As long as the version is the same you should be good.

FAL_SERVER and FAL_CLIENT

Hi to all,
I am going throught the Dataguard Concepts and Administration Docs.
I have one doubt.
For Eg: My primary db is named as : PRD
Standby DB is name as: PRDSTBY
Now with respect to the init parameters, I mentioning
FAL_CLIENT = PRDSTBY (in PRD init file)
FAL_SERVER = PRD (in prd but this works when switch over right?)
FAL_CLIENT = PRDSTBY (in prdstby but this works when switch over right?)
FAL_SERVER = PRD (in PRDSTBY)
Is my understanding is correct?
Regards,
Vijayaraghavan K

Hi
FAL_CLIENT is the one that is requesting the logs to be applied (the standby server)
FAL_SERVER is the one that is sending the logs to be applied (the primary server)
when you want to test failover and want to make your primary as standby and standby as primary, then the roles become opposite and the FAL_CLIENT, FAL-SERVER would be different.
There is a good paper by Alejandro Varjas where he explains the concepts with a very good demo.
Hope this helps
MSK

Difference between database version, release and compatible parameter

Can anyone please explain me the diff between version, release and compatible.?
Regards,
Shubha

hi,
A lot of differences this is my take on them:
8i -> 9i - Real Application Clusters, PL/SQL enhancements, XMLType enhancements
9i -> 10g - ASM space management, tracing and diagnostics, DML error logging, async commit, more PL/SQL changes, table/column encryption, restore points
10g -> 11g - Probably best to point you to technet on that one.
You can find the links to the various versions here:
http://www.oracle.com/technology/documentation/database.html
regards,

RAC and standby database

Hi,
We have configured a RAC production system and an standalone standby database.
Last week, we had trouble with our ESS subsystem and we have to failover.
Rigth now we solve the problem with the ESS subsysytem and the RAC enviroment is up and running but the database is no updated because is at the moment that we had the problem.
So, we want to back to the initial configuration (RAC primary database and standalone standby).
I want to know is this can be possible with only a backup/restore? (standby database cold backup and then restore the database over the RAC environment) and then reconfigure our standby database?
Or which steps should we follow to do this?
Thanks in advance,
Gerald

My question is:
Is it possible to setup a standby database on a RAC environment with 2 nodes? I've searched through MOS but didn't find any information about that...Yes, it is possible. Refer this
*Data Guard Physical Standby 11.2 RAC Primary to RAC Standby using a second network [ID 1349977.1]*
MAA / Data Guard 10g Setup Guide – Creating a RAC Physical Standby for a RAC Primary
http://www.oracle.com/technetwork/database/features/availability/maa-wp-10g-racprimaryracphysicalsta-131940.pdf
http://wiki.tapriuneclak.com/index.php?title=Oracle_-StepBy_Step_of_Configuring_Oracle_11gR2_(11.2.0.1)_RAC_to_RAC_Dataguard
http://davidalejomarcos.wordpress.com/2010/02/17/creating-a-3-node-rac-database-as-standby/

SECURITY PATCH ON STANDBY DATABASE AND PRIMARY DATABASE

I have a question on applying CPU on standby and primary database
I have a standby database on machine2 and primary on machine1
I applied a CPU patch on the Oracle Home of Standby database and
did not run the catcpu.sql as standbydatabase is in mount state.
Now i am going to apply the CPU patch on primary database.
What i need to confirm is that after i apply the patch on primary database oracle home
and run the cat cpu.sql on that do i have to do anything on the standby database
for instance rebuilding it or something or the change would be shipped to the standby
server automatically.
The purpose is to have the primary and standby database on the same patch level
in case of a failover
Please let me know asap

Any one has any idea on this. Any ideas would be appreciated

Fal_srver and fal_client doubt

Hi friends,
I have doubt on this parameter FAL_SERVER and Fal_client.
1.In oracle 11g FAL_CLIENT initialization no more required. then what about FAL_SERVER parameter ?
2.Is it mandatory to initialize the parameters during data guard configuration FAL_SERVER and FAL_CLIENT ?
3.if not mandatory then how automatic gap resolution done in case of dataguard ?
4.what is the role of archiver process in dataguard gap resolution ?
Thanks & Regards
Arya

Hi,
1.In oracle 11g FAL_CLIENT initialization no more required. then what about FAL_SERVER parameter ?
Yes, after 11g version FAL_CLIENT is no more required. FAL_SERVER parameter is require for data guard configuration.
2.Is it mandatory to initialize the parameters during data guard configuration FAL_SERVER and FAL_CLIENT ?
FAL_SERVER paramater is only for mandatory standby database. because, RFS using FAL_SERVER parameter for request redo changes.
FAL_SERVER is primary database.
3.if not mandatory then how automatic gap resolution done in case of dataguard ?
It is mandatory. When Automatic Gap Resolution is using standby database, RFS process using FAL_SERVER parameter for request
redo from primary for resolution redo gap.
4.what is the role of archiver process in dataguard gap resolution ?
When occur redo gap. Standby send request to primary via RFS, requested archive log sequence#.
NLS send info to ARCH process, and ARCH process connecting to standby RFS and sending requested archived log.
and MRP apply received archived logs.
Regards
Mahir M. Quluzade
http://www.mahir-quluzade.com

Problem creating physical Standby database with RMAN

Hi All
I am trying to learn oracle dataguard and as part of the process learning creating standby database.
Platform : Sun-Fire-V250 Sparc, Solaris 10
Database Version - Oracle 11R2
I am creating standby database on same server, so directory structure is different.
Following the instructions on Oracle site I managed to create a functional physical standby database. But I am not able to create standby database using RMAN. These are the steps that I followed-
1.Set up all necessary parameters on primary database as done while creating physical standby database manually, eg setting force logging, creating standby logs etc.
2.Edited parameter file on primary database as done while creating manual pysical standby database creation. Some of the changes done are-
On 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=stdby_11 LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) db_unique_name=stdby_11'
*.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 for standby database and modified following-
*.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 relevant information in tnsnames.ora and listener.ora files and then restart listener.
3. Created password file with same credential as primary database.
4.Up-to-date RMAN backup of primary database available.
5.Create standby controlfile with rman
While primary database s open (I tried with primary database in mount mode as well)-
$>rman catalog rman/paswd@rman target /
RMAN> BACKUP CURRENT CONTROLFILE FOR STANDBY;
6. Open a new terminal and startup standby database in nomount mode using parameter file created -
$>ORACLE_SID=stdby_11
$>export ORACLE_SID
$>sqlplus / as sysdba
SQL>STARTUP NOMOUNT pfile='<location/initfilename.ora'
SQL>quit
$> rman AUXILIARY / target sys/passwd@orcl11020 catalog rman/passwd@rman
RMAN>DUPLICATE TARGET DATABASE FOR STANDBY DORECOVER;
RMAN finishes without error but archive logs are not being tranported. Looking at the log, following caught my eye-
Error 1017 received logging on to the standby
Check that the primary and standby are using a password file
and remote_login_passwordfile is set to SHARED or EXCLUSIVE,
and that the SYS password is same in the password files.
returning error ORA-16191
FAL[client, ARC2]: Error 16191 connecting to orcl11020 for fetching gap sequence
Errors in file /<>dir>/diag/rdbms/stdby_11/stdby_11/trace/stdby_11_arc2_24321.trc:
ORA-16191: Primary log shipping client not logged on standby
Errors in file /<dir>/diag/rdbms/stdby_11/stdby_11/trace/stdby_11_arc2_24321.trc:
ORA-16191: Primary log shipping client not logged on standby
So on both primary and standby I confirmed
SQL> show parameter remote_login_passwordfile
NAME TYPE VALUE
remote_login_passwordfile string EXCLUSIVE
To make double sure that password files are same, I shutdown both databases, delete password files and recreated with same credentials.
Password files are called - orapworcl11020 and orapwstdby_11
Can someone guide me where thisngs are going wrong here please.

Not sure if I understood it clearly.
SELECT * FROM V$ARCHIVE_GAP;
returns no rows so there is no gap.
But could you please explain me the result of the previous query. To catch up again, on standby when I check
SELECT SEQUENCE#,APPLIED FROM V$ARCHIVED_LOG
SEQUENCE# APPLIED
75 NO
74 NO
76 NO
77 NO
I understand that though archive files have been copied across but they are not applied yet.
On primary when I give your query -
SELECT name as STANDBY,SEQUENCE#,applied, completion_time
2 FROM v$archived_log
3 where dest_id=2
4 and sequence# BETWEEN 74 and 80;
I get -
STANDBY SEQUENCE# APPLIED COMPLETIO
stdby_11 74 YES 28-JUN-11
stdby_11 75 YES 28-JUN-11
stdby_11 76 YES 29-JUN-11
stdby_11 77 YES 29-JUN-11
stdby_11 78 YES 29-JUN-11
stdby_11 79 YES 29-JUN-11
stdby_11 80 YES 29-JUN-11
stdby_11 75 NO 07-JUL-11
stdby_11 74 NO 07-JUL-11
stdby_11 76 NO 07-JUL-11
stdby_11 77 NO 07-JUL-11
stdby_11 78 NO 07-JUL-11
I have intentionally given
sequence# BETWEEN 74 and 80
because I know in the current incarnaion of the database, max sequence is 78.
So my understanding is, the rows between 28-29 June are from previous incarnation, correct me if I am wrong
Archive files of the current incarnation, since I successfully created standby database are shipped but yet to be applied - am I right?
Then my final question is, when will these archives be applied to standby database?
I am sorry to ask too many questions but I am just trying to understand how it all works.
Thanks for your help again

Recover the standby database

Hi, I have both primary and standby database in ASM and I need to recover the standby database as it's falling behind for too long. The steps I did are:
1. backup full database on primary
2. create a standby controlfile and copy to /tmp on the standby
3. on the standby, RMAN>restore standby controlfile from '/tmp/std.ctl';
4. RMAN>restore database;
5. SQL>recover managed standby database disconnect;
However, the recovery always shuts down and I get the error:
ORA-01110: data file 1: '+W08_DATA_DG/w08p/datafile/system.295.662256331'
What's wrong with my steps?
Your suggestion is greatly appreciated!

the directory structures are the same. The standby was working before. It's just falling behind so I want to restore it from the new backup. Here is the init.ora
*.audit_file_dest='/opt/app/oracle/admin/W08P/adump'
*.background_dump_dest='/opt/app/oracle/admin/W08P/bdump'
*.cluster_database_instances=2
*.cluster_database=false
*.compatible='10.2.0.3.0'
*.control_files='+W08_DATA_DG/w08p/control01.ctl','+W08_RECOVERY_DG/w08p/control02.ctl','+W08_DATA_DG/w08p/control03.ctl'
*.core_dump_dest='/opt/app/oracle/admin/W08P/cdump'
*.db_block_size=8192
*.db_create_file_dest='+W08_DATA_DG'
*.db_domain=''
*.db_file_multiblock_read_count=16
*.db_name='W08P'
*.dispatchers='(PROTOCOL=TCP) (SERVICE=W08PXDB)'
*.event='10298 trace name context forever, level 32'
*.job_queue_processes=10
*.log_archive_dest_1='LOCATION=+W08_RECOVERY_DG/W08P/'
*.log_archive_format='%t_%s_%r.arc'
*.log_archive_max_processes=6
*.open_cursors=1000
*.optimizer_index_caching=70
*.optimizer_index_cost_adj=30
*.pga_aggregate_target=1459617792
*.processes=300
*.remote_login_passwordfile='exclusive'
*.sessions=1000
*.sga_target=1610612736
*.undo_management='AUTO'
*.undo_retention=26000
W08P.undo_tablespace='UNDOTBS1'
*.user_dump_dest='/opt/app/oracle/admin/W08P/udump'
standby_archive_dest='LOCATION=+W08_RECOVERY_DG/W08P'
CONTROL_FILE_RECORD_KEEP_TIME=0
standby_file_management=auto
fal_server=w08p
fal_client=w08p_stby
control_file_record_keep_time=90
~

Archived log missed in standby database

Hi,
OS; Windows 2003 server
Oracle: 10.2.0.4
Data Guard: Max Performance
Dataguard missed some of the archivelog files and but latest log files are applying. standby database is not in sync with primary.
SELECT LOCAL.THREAD#, LOCAL.SEQUENCE# FROM (SELECT THREAD#, SEQUENCE# FROM V$ARCHIVED_LOG WHERE DEST_ID=1) LOCAL WHERE LOCAL.SEQUENCE# NOT IN (SELECT SEQUENCE# FROM V$ARCHIVED_LOG WHERE DEST_ID=2 AND THREAD# = LOCAL.THREAD#);
I queried above command and I found some files are missed in standby.
select status, type, database_mode, recovery_mode,protection_mode, srl, synchronization_status,synchronized from V$ARCHIVE_DEST_STATUS where dest_id=2;
STATUS TYPE DATABASE_MODE RECOVERY_MODE PROTECTION_MODE SRL SYNCHRONIZATION_STATUS SYN
VALID PHYSICAL MOUNTED-STANDBY MANAGED MAXIMUM PERFORMANCE NO CHECK CONFIGURATION NO
Anyone can tell me how to apply those missed archive log files.
Thanks in advacne

Deccan Charger wrote:
I got below error.
SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT FROM SESSION;
ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT FROM SESSION
ERROR at line 1:
ORA-01153: an incompatible media recovery is activeYou need to essentially do the following.
1) Stop managed recovery on the standby.
ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL;2) Resolve the archive log gap - if you have configured FAL_SERVER and FAL_CLIENT Oracle should do this when you follow step 3 below, as you've manually copied the missed logs you should be OK
3) restart managed recovery using the command shown above.
You can monitor archive log catchup using the alert.log or your original query.
Niall Litchfield
http://www.orawin.info/
Edited by: Niall Litchfield on May 4, 2010 2:29 PM
missed tag

Adding a second physical standby database

Please, here is my problem:
I have a physical standby database working fine and I would like to add to it another physical standby database. Please, what about these two parameters:
db_file_name_convert=('prim','second'),('prim',''third')
and the same for log_file_) name_convert?
Please, can I have any help from the gurus?
Thanks for any help

db_file_name_convern and log_file_name_convert is meant to be set on standby database
it can have multiple values to remap paths values on standbying'
like
db_file_name_convert='source_string','target_string'
db_file_name_convert='source_string1','target_string1','source_string2','target_string2','source_string3','target_string4'

Multiple standby database about FAL_SERVER and FAL_CLIENT parameter in DG

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