Implementing Archive Log Mode In RAC Environment
Nov 23, 2010
Questions about implementing ARCHIVELOG mode in RAC environment.
Oracle 11gR1 RAC + ASM database. I'd like to implement ARCHIVELOG mode. Each node will have its own archive log.
Does it make sense to place archivelogs on ASM (shared storage)? Or the best practice would be to have some aside "BACKUP" server to place and keep archivelogs from all the RAC nodes there?
Additional question is about archive logs space required estimation. If it's correct to know estimate archive logs space required to get the daily avg number of switch logs
CODEselect round(avg(n_of_switch_logs), 3) avg_num_of_switch_logs
from (select trunc(first_time), count(*) n_of_switch_logs
from gv$log_history
group by trunc(first_time))
and multiply it on size of single redolog?
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Jun 8, 2012
I am using Oracle Database 10.2 in No Archive Log Mode. what auditing options are available in No Archive Log mode ?
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May 6, 2013
resolving the below issue.
environment:
DB version:11.2.0.3.0
OS : IBM/AIX RISC System/6000
backup tool : Symantec net backup.
When I start RMAN backup through Symantec net backup tool same is failing. when I see in log file below error message is recorded in the same.
################################################################################
Starting backup at 06-MAY-13
channel ch00: starting compressed incremental level 0 datafile backup set
channel ch00: specifying datafile(s) in backup set
RMAN-03009: failure of backup command on ch00 channel at 05/06/2013 07:09:16
[Code]....
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03009: failure of backup command on ch00 channel at 05/06/2013 07:09:16
ORA-19602: cannot backup or copy active file in NOARCHIVELOG mode
RMAN> RMAN>
Recovery Manager complete.
####################################################################################
But, DB is up and operating fine with ARCHIVELOG mode at that movement not even restart also.
how to resolve.
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Dec 28, 2011
what is the techniques to set the archive mode in oracle database on???????
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Aug 24, 2011
changing archive mode during DB running.Before in 9.2, 'ALTER SYSTEM ARCHIVE LOG START/STOP' is available for this job. But, after 10g/11g, it cause 'archive log stop has been deprecated'.
However, for my practice, I need to estimate archived logs size before backup them, so I need to stop archive log for a while and enable it later during DB running.
I check Oracle documents, it only mentions changing archive log mode at DB mounted but not open.
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Oct 31, 2011
I want to drop a datafile in my test db which is in no archive mode,at first, i want to offline the datafile,but it failed,is there any way to do it?
SQL> archive log list;
Database log mode No Archive Mode
Automatic archival Disabled
Archive destination USE_DB_RECOVERY_FILE_DEST
Oldest online log sequence 3237
[code].......
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Jul 12, 2012
I am using oracle 10g. Is there any mechanism to / parameter to enable or disable archive log mode? can I enable arching directly from pfile without touching the startup process?
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Jul 26, 2008
I am implementing one-way replication between 2 databases.
Do people leave the target database in archive-log mode? Do they backup the target database?
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Jun 19, 2012
I'm trying to move my backup sets from windows database environment, to OEL 5.7 environment on another server.
I've found a manual [URL] by which I am trying to do it.I took backup sets from last night's backup using RMAN,and the current parameter(initSID.ora) file from the running live database.Now i need to configure control files in the pfile accordingly.
1. can i take current control files from the running system, to restore and recover backup sets from last night, to the state the database was at backup time?
2. how can i find out if control files are backed up and know by RMAN? "list backup completed after '2012-JUN-19';" >> gives me Archive redo logs, datafiles, but don't see the control files(or don't reconize them).
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Sep 27, 2011
implementing UNPIVOT in..I am using Oracle 11g Release 11.2.0.1.0
OS: windows
Table Structure
CREATE TABLE "EMPLOYEE_ROLE"
("EMPLOYEE_ID" NUMBER(10,0),
"MANAGER_1" VARCHAR2(10 BYTE),
"MANAGER_2" VARCHAR2(10 BYTE),
"MANAGER_3" VARCHAR2(10 BYTE),
"MANAGER_4" VARCHAR2(10 BYTE),
[code]....
EMPLOYEE_ID MANAGER_1 MANAGER_2 MANAGER_3 MANAGER_4 MANAGER_5 ROLE_1 ROLE_2 ROLE_3 ROLE_4 ROLE_5 1345 John Mike Ram Kumar null DBA Sql Dev PLSQL Admin null
1 rows selected
I want a output like this
EMPLOYEE_ID MANAGER ROLE1
1345 John DBA
1345 Mike SQL DEV
1345 Ram PLSQL
1345 Kumar Admin
*I have tried with UNPIVOT *
SELECT
EMPLOYEE_ID
,MANAGER
FROM
EMPLOYEE_ROLE
UNPIVOT( MANAGER
FOR col1
in (MANAGER_1,
MANAGER_2,
MANAGER_3,
MANAGER_4,
MANAGER_5
))
i am able to get manager and role in two different queries
EMPLOYEE_ID MANAGER
1345 John
1345 Mike
1345 Ram
1345 Kumar
4 rows selected
SELECT
EMPLOYEE_ID
,ROLE1
FROM
EMPLOYEE_ROLE
UNPIVOT( ROLE1
FOR col1
in (ROLE_1,
ROLE_2,
ROLE_3,
ROLE_4,
ROLE_5
))
[code]....
Is it possible to add two unpivots in a single UNPIVOT query.
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Sep 26, 2013
I have question regarding data masking. Currently we are using Oracle 11g database , we are thinking of implementing data-masking feature in 11g. Is this can be done by adding any package to it.
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Aug 28, 2012
We are planning to use an Application Express application for intranet and internet users. We want to implement a DMZ configuration for this application.
Is there any good guide to implement it?, we want to use Oracle Http Server to access Oracle Application Express.
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May 8, 2012
we are implementing case insensitive seaarch in our small 10g database...We would be modifying the following parameters.
nls_comp=LINGUISTIC ;
nls_sort=binary_ci;
We want to use the existing indexes and as I understand we will need indexes created in following manner
create index <index_name> on <table_name>(nlssort( <column_name>, 'NLS_SORT=BINARY_CI'));
1) Is there any mechanism with which we can convert existing index to above type? (without drop and recreate)One of the issue I can see is related to unique values as 'ABC', 'Abc' and 'abc' would be treated same
2) Apart from that is there any issue, added maintenance for such index?
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Aug 28, 2013
To clear some confusions regarding 11gR2 RAC environment.
(1) Can I use the same owner (ie oracle) for both the Oracle Grid Infrastructure installation and the Oracle RAC installation ? Like :
ORACLE_BASE=/oracle/11.2
GRID_HOME=/oracle/11.2/grid ## Grid Infrastructure binary
ORACLE_HOME=/oracle/11.2/db ## Oracle RAC binary
(2) Whats the difference between CSR_HOME and GRID_HOME ??
(3) If not using ASM in RAC environment, should I still need to create "storage administration role" (i.e. SYSASM/OSASM..) ?
(4) Is password file necessary for RAC instances in each node ?
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May 16, 2010
how to set environment variable in oracle application.
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Jul 18, 2013
link where can i get oracle 9i for Linux OS??Is 9i available for 64 bit ?
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Feb 6, 2013
I faced a problem in our production primary DB like the listener was running but it was not connecting through the remote system, when i accessed the primary database.
But when i restarted the listener it started connecting. I want to know the reason for this crash/freeze.
Oracle version: Oracle Database 11g release 11.2.0.1.0 SE1 64 - bit production
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Aug 23, 2012
we are planing to put the same oracle environment on two machines.
what is the best way to realize that.installation on each machine or installation on one machine and copy the environment to the second?
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Feb 21, 2013
We have a 10g environment with DataGuard running for reporting purposes. Our application team is getting ready to upgrade their application and it requires that several SQL Scripts be run to perform the primary database updates. A couple of them are over 1 MB in length. My concern is that these scripts will break DataGuard. I am not a DBA by any stretch, but I seem to remember there are certain limitations with DataGuard.
I have reached back to the team and asked them to have the Vendor confirm these scripts are validated for a DataGuard environment and I have also reached out to the System DBAs for review. I am wondering if there is an utiility available that can check the SQL to confirm if there are any DDL or DML statements that will not work in DataGuard. Likewise, we are going to run these scripts in a non-production DataGuard enabled environment first, but I want to have some level of confidence, that this will be a success.
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Dec 27, 2012
We have an application, where we invoke a URL pointing to a folder on the Application Server, so that users can download files from the same.
There is user authentication provided for the URL.
Example :
Our application ABC (example) which is built with Oracle Forms 10g, hosted on Application server (itxxx123) inovkes a module GEN9999 which on pressing a button calls a URL which is open in the Internet Explorer browser.
If the URL has been called from the Forms or the Application (ABC), then it should be allowed.
If the URL is called standalone, by Opening IE Browser and invoking the URL, this should not be allowed.
However, there have been security concerns raised during Audit, saying that users can access the URL directly from the Browser instead of the Application. Also the URL is saved the Browser history, so even if the user is no longer working in the Application Team, and has moved out of the team, then the ex-user can still access the URL and view and download files.
Is there any way to restrict access to the URL such that is only accessible when it is called from the Application, and that access is restricted when directly called from the Browser.
I have seen that environment variables in httpd.conf may be usable for the above. However, not sure how to use them from Oracle Forms.
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Jan 23, 2013
what value exactly I need to give for the PATH environment variable in oracle 11g running on windows xp?
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Nov 24, 2010
I am calling a select query inside a procedure but i need to set environment variable 'set linesize 200' inside that procedure but i am not able to create the procedure due to some error. I am attaching the procedure query here with:
before the select query i need to insert this environment variable : "set linesize 200"
create or replace
procedure TABLESPACE_USAGE
is
l_mailhost VARCHAR2(64) := 'ip address';
l_from VARCHAR2(64) := 'email id';
l_subject VARCHAR2(64) := 'TABLESPACE_USAGE1';
l_to VARCHAR2(128) := 'email id';
[code]......
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Aug 11, 2011
When I run the command "host set sqlpath" I get the following message "Environment variable sqlpath not defined",how I can set my oracle sqlpath
SQL> host set sqlpath
Environment variable sqlpath not defined.
how can I set an sqlpath in enviroment variable?
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Apr 29, 2010
I have to create/configure the environment for the database having high volume of the transactions nearly 10000 transactions per day and at peak time nearly 1500 transactions per second.
RAC can be one of the solution but that comes up with high cost. I googled for this type of environment configuration, what could be possible settings need to be configured for this environment configuration in both RAC and Non-RAC.
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Nov 22, 2010
how can we see/set the environment variables through enterprise manager or through command prompt.
e.g (setting external procedure calls DDLs)etc.
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Mar 23, 2010
Below is my code for calling a report from form in windows environment. I want to use the same report to be called from Unix environment . When m using application server tbanner@.... instead of 'repsrv@ahad-pc' is throwing error its in UNIX environment
REP-51002: Bind to Reports Server tbannerdb.kfupm.edu.sa failed
Declare
v_show_documentVARCHAR2 (2000) := '/reports/rwservlet?';
v_connectVARCHAR2 (200) := 'userid=abdulahad/inshalla@test';
v_report_serverVARCHAR2 (30) := 'repsrv@ahad-pc';
v_report_nameVARCHAR2(100) := 'test3.rdf';
[code].......
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Mar 13, 2013
I am working in all 3 environments: development , Test and Production. How can we access the tables created in one environment in the other environment. Also, request to share the SQL code for the same.
I am using Oracle Sql Developer tool.
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Jun 25, 2013
Need patch strategy specially for production environment?? We have production environment and we are planning to patch our databases using PSU pacthes with no downtime. Our production environment has standby. We have one option that we can make standby to primary. Is there any other options that we can use?
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Aug 29, 2012
recently i have tried to upgrrade from oracle 11.2.0.2 to 11.2.0.3 in a test environment (virtual machine).
there i have mentioned the SID as ORCL, but when we took the same snapshot to other machine (VM). iam unable to connect to the VM, unless i gave the local net service configuration as ORCL but it is unable to connect. but when i ran the query "select * from GLOBAL_NAME" output was ORCL. domain. com again i have configured in LNSC as ORCL.DOMAIN.COM it is working.
but i have given the sid as ORCL..
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Feb 15, 2012
We have a RAC in a test environment.It's 2 nodes connecting to an IBM DS3512. The DS3512 has one pool of 8 hard disks (RAID10) which has been then sliced into logical drives:
2 x 1GB
then
2 * 400GB
I have been tasked with changing the current configuration as follow:
2 pools of 4HDs in a RAID10 configuration
Then from the first pool:
2 * 1GB
1 * 398GB
from 2nd pool:
1 * 400GB
What I intend to do:
1) shutdown
SQL> shutdown immediate;
./srvctl crs stop
2) backup
dd if=votingdisk of=voting_disk_backup
I already got backups of OCR in $CRS_HOME/cdata/crs/
3) Perform changes on SAN
4) recreate ocfs2 partitions
5) mount the disks to their folder.
6) recovery
recover voting from backup
recover ocr from backup
7) Turn service on again
./srvctl crs start
SQL> startup;
Would this scenario work. There can be some glitches like the disk names changing after the reconfiguration but I only need to modify fstab for that.
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