RAC x Multiplexing files

Hi,
I am planning a new RAC installation and wondering how to use multiplexing in such environment.
As far as I know:
- Control files must reside on a shared storage system -> I can multiplex them between storage groups;
- Log files must not be shared -> Therefore, I can place log files for each instance in RAID disks (RAID 1, for instance) at participating nodes (not at the shared storage).
- SPFiles must not be shared -> Therefore, I can place them at local disks on participating nodes (the same way of log files).
Is that right?

user492400 wrote:
Hi,
I am planning a new RAC installation and wondering how to use multiplexing in such environment.
As far as I know:
- Control files must reside on a shared storage system -> I can multiplex them between storage groups;
- Log files must not be shared -> Therefore, I can place log files for each instance in RAID disks (RAID 1, for instance) at participating nodes (not at the shared storage).
- SPFiles must not be shared -> Therefore, I can place them at local disks on participating nodes (the same way of log files).
Is that right?1) Yes control files would be on a shared storage as all the instance will be running over them.
2) Not entirely correct. They can lie on the shared storage as well. Theonly thing that you need to make sure even if you put redo and undo on seperate nodes as well, that they should be accessible from all the nodes as they would be required in the case of the recovery.
3) As a good practice , its good to put the spfile on the shared storage.
HTH
Aman....

Similar Messages

ORA-01103: database name 'RAC' in control file is not 'STB'

Hiii..,
Im doing my dataguard setup, My primary side is a 2node RAC and standby is a single node. Im using 11gR2 Database.
when im using RMan command for Duplicating the Database im getting the following Error.
sql statement: alter database mount standby database
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of Duplicate Db command at 10/03/2011 18:33:58
RMAN-03015: error occurred in stored script Memory Script
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RMAN-11003: failure during parse/execution of SQL statement: alter database mount standby database
ORA-01103: database name 'RAC' in control file is not 'STB'
Plz anyone can help me in resolving the issue.??
Thanks in advance..

881222 wrote:
In my primary side the db_recovery_file_dest is not set as shown beloww..
SQL> show parameter db_recovery_file_dest;
NAME                                 TYPE        VALUE
db_recovery_file_dest                string
db_recovery_file_dest_size           big integer 0
SQL> select flashback_on from v$database;
FLASHBACK_ON
NO
so shud i need to set in standby side..??
Thanks.
ORA-19801:
     initialization parameter DB_RECOVERY_FILE_DEST is not set
Cause:      An attempt was made to create a file in DB_RECOVERY_FILE_DEST when DB_RECOVERY_FILE_DEST was not set. There are number of possible causes of this error, including:
                1) A LOG_ARCHIVE_DEST_n parameter was specified using a LOCATION attribute whose value was DB_RECOVERY_FILE_DEST and an archivelog file creation was attempted.
                2) STANDBY_ARCHIVE_DEST parameter was specified using a LOCATION attribute whose value was DB_RECOVERY_FILE_DEST and an archivelog file creation was attempted.
Action:      Specify a valid destination for DB_RECOVERY_FILE_DEST in initialization parameter file or with the ALTER SYSTEM SET command.

Interpreting RAC error dump file

Can someone help me interpret this RAC dump file:
$ more cogcsdev3_ora_27680.trc.old
/n01/app/oracle/admin/COGCSDEV/udump/cogcsdev3_ora_27680.trc
Oracle Database 10g Enterprise Edition Release 10.2.0.3.0 - 64bit Production
With the Partitioning, Real Application Clusters, OLAP and Data Mining options
ORACLE_HOME = /n01/app/oracle/product/10.2.0
System name: SunOS
Node name: grid-t3
Release: 5.10
Version: Generic_118833-24
Machine: sun4u
Instance name: COGCSDEV3
Redo thread mounted by this instance: 3
Oracle process number: 34
Unix process pid: 27680, image: oracleCOGCSDEV3@grid-t3
*** 2007-09-20 12:07:21.480
*** SERVICE NAME:(SYS$USERS) 2007-09-20 12:07:21.480
*** SESSION ID:(77.22755) 2007-09-20 12:07:21.480
DUMP LOCAL BLOCKER/HOLDER: block level 5 res [0x19001d][0x37ff],[TX]
----------resource 0x3986d4a30----------------------
resname : [0x19001d][0x37ff],[TX]
Local node : 2
dir_node : 2
master_node : 2
hv idx : 123
hv last r.inc : 2
current inc : 2
hv status : 0
hv master : 2
open options : dd
grant_bits : KJUSERNL KJUSEREX
grant mode : KJUSERNL KJUSERCR KJUSERCW KJUSERPR KJUSERPW KJUSEREX
count : 9 0 0 0 0 1
val_state : KJUSERVS_NOVALUE
valblk : 0x00000000000000000000000000000000 .
access_node : 2
vbreq_state : 0
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resp : 3986d4a30
On Scan_q? : N
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Imm. accesses: 1594
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value_block: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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lp 410dbe058 gl KJUSEREX rp 3986d4a30 [0x19001d][0x37ff],[TX]
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lp 410dbe1a8 gl KJUSERNL rl KJUSEREX rp 3986d4a30 [0x19001d][0x37ff],[TX]
master 2 gl owner 410c86dc8 possible pid 27680 xid 3002-0022-0000013E bast 0 rseq 7 mseq 0 history 0x1495149a
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lp 3d11e7c38 gl KJUSERNL rl KJUSEREX rp 3986d4a30 [0x19001d][0x37ff],[TX]
master 2 gl owner 3d10615d8 possible pid 9126 xid 3004-0041-00000002 bast 0 rseq 7 mseq 0 history 0x1495149a
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lp 410dbe448 gl KJUSERNL rl KJUSEREX rp 3986d4a30 [0x19001d][0x37ff],[TX]
master 2 gl owner 410c67d48 possible pid 10101 xid 3003-003A-00000008 bast 0 rseq 7 mseq 0 history 0x1495149a
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lp 3d114ec98 gl KJUSERNL rl KJUSEREX rp 3986d4a30 [0x19001d][0x37ff],[TX]
master 2 gl owner 3d1060128 possible pid 11154 xid 3004-0043-00000002 bast 0 rseq 7 mseq 0 history 0x1495149a
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lp 3d11e7998 gl KJUSERNL rl KJUSEREX rp 3986d4a30 [0x19001d][0x37ff],[TX]
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lp 3d114ef38 gl KJUSERNL rl KJUSEREX rp 3986d4a30 [0x19001d][0x37ff],[TX]
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lp 410dbeaf0 gl KJUSERNL rl KJUSEREX rp 3986d4a30 [0x19001d][0x37ff],[TX]
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lp 410d254c0 gl KJUSERNL rl KJUSEREX rp 3986d4a30 [0x19001d][0x37ff],[TX]
master 2 gl owner 410c615d8 possible pid 17049 xid 3004-0048-00000002 bast 0 rseq 7 mseq 0 history 0x1495149a
convert opt KJUSERGETVALUE
----------enqueue 0x410dbe058------------------------
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grant_level : KJUSEREX
req_level : KJUSEREX
bast_level : KJUSERNL
notify_func : 0
resp : 3986d4a30
procp : 39ca22e98
pid : 27680
proc version : 86
oprocp : 0
opid : 0
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xid : 3001-0012-0000006A
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timeout : 0.0 secs
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res_seq : 7
valblk : 0x00000000000000000000000000000000 .
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DUMP LOCAL BLOCKER: initiate state dump for TIMEOUT
possible owner[18.9871]
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the "Potential blocker (pid=9871) on resource TX-0019001D-000037FF" part in the logfile caught my attention and I was not sure it's a block or enqueue contention.
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Multiplex files won't drag from source to edit window

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Mark said
I'm seeing exactly what you show, Steven. ....
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Rac to non rac standby file name convert option

Hi,
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diskgroup NAME for all files for both primary and standby +DATA
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thats fine john,
log_file and db_file covert from '+DATA/RAC', '+DATA/racdr'
my primary is rac
my standby us racdr
so i mentioned above folders on convert option, so if i created datafile with or without specifying a diskgroup like mentione below, with or without specifying the directory like below
will all create on under '+DATA/racdr' diskgroup ??
create tablespace test DATA size10m; --> not specidying a full path as DATA/RAC' so will it go to DATA/racdr' ?? or creating under DATA ?diskgroup on standby????
Thanks,

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Patch 8568398:
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SQL*Plus: Release 10.2.0.4.0 - Production on Fri Jul 17 16:29:29 2009
Copyright (c) 1982, 2007, Oracle. All Rights Reserved.
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LSNRCTL for HPUX: Version 10.2.0.4.0 - Production on 17-JUL-2009 16:32:29
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Copyright (c) 1996, 2007 Oracle Corporation. All rights reserved.
http://hostname:1158/em/console/aboutApplication
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<...>
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Oracle Interim Patch Installer version 10.2.0.4.7
Copyright (c) 2009, Oracle Corporation. All rights reserved.
UTIL session
Oracle Home : /u02/app/oracle/product/10.2/Db_1
Central Inventory : /u02/app/oracle/oraInventory
from : /var/opt/oracle/oraInst.loc
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OUI version : 10.2.0.4.0
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Checking conflict among patches...
Checking if Oracle Home has components required by patches...
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Checking conflicts against Oracle Home...
OPatch continues with these patches: 7155248 7155249 7155250 7155251 7155252 7155253 7155254 7197583 7375611 7375613 7375617 7609057 7609058 8309587 8309592 8309623 8309632 8309637 8309642 8534387 8568395 8568397 8568398 8568402 8568404 8568405
Do you want to proceed? y
y
User Responded with: Y
Running prerequisite checks...
Prerequisite check "CheckApplicable" failed.
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Patch 8568398:
Copy Action: Desctination File "/u02/app/oracle/product/10.2/Db_1/lib/libjox10.so" is not writeable.
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Invoking OPatch 10.2.0.4.7
Oracle Interim Patch Installer version 10.2.0.4.7
Copyright (c) 2009, Oracle Corporation. All rights reserved.
Oracle Home : /u02/app/oracle/product/10.2/Db_1
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Oracle Database 10g Release 2 Patch Set 3 10.2.0.4.0
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Agent Required Support Files Patch 10.2.0.4.0
Assistant Common Files 10.2.0.1.0
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Bali Share 1.1.18.0.0
Buildtools Common Files 10.2.0.1.0
Character Set Migration Utility 10.2.0.1.0
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Database Configuration and Upgrade Assistants 10.2.0.1.0
Database Configuration and Upgrade Assistants Patch 10.2.0.4.0
Database SQL Scripts 10.2.0.1.0
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Database Workspace Manager 10.2.0.1.0
Database Workspace Manager 10.2.0.4.0
DBJAVA Required Support Files 10.2.0.1.0
DBJAVA Required Support Files Patch 10.2.0.4.0
Enterprise Edition Options 10.2.0.1.0
Enterprise Manager Agent Core 10.2.0.1.0
Enterprise Manager Agent Core Patch 10.2.0.4.0a
Enterprise Manager Agent DB 10.2.0.1.0
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Oracle interMedia Java Advanced Imaging 10.2.0.1.0
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Oracle interMedia Locator 10.2.0.1.0
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Perl Interpreter 5.8.3.0.1
Perl Interpreter Patch 5.8.3.0.1a
PL/SQL 10.2.0.1.0
PL/SQL 10.2.0.4.0
PL/SQL Embedded Gateway 10.2.0.1.0
PL/SQL Embedded Gateway Patch 10.2.0.4.0
Platform Required Support Files 10.2.0.1.0
Platform Required Support Files 10.2.0.4.0
Precompiler Common Files 10.2.0.1.0
Precompiler Common Files Patch 10.2.0.4.0
Precompiler Required Support Files 10.2.0.1.0
Precompiler Required Support Files Patch 10.2.0.4.0
RDBMS Required Support Files 10.2.0.1.0
RDBMS Required Support Files for Instant Client 10.2.0.1.0
RDBMS Required Support Files for Instant Client Patch 10.2.0.4.0
RDBMS Required Support Files Patch 10.2.0.4.0
regexp 2.1.9.0.0
Required Support Files 10.2.0.1.0
Sample Schema Data 10.2.0.1.0
Sample Schema Data Patch 10.2.0.4.0
Secure Socket Layer 10.2.0.1.0
Secure Socket Layer Patch 10.2.0.4.0
SQL*Plus 10.2.0.1.0
SQL*Plus 10.2.0.4.0
SQL*Plus Required Support Files 10.2.0.1.0
SQL*Plus Required Support Files Patch 10.2.0.4.0
SQLJ Runtime 10.2.0.1.0
SQLJ Runtime Patch 10.2.0.4.0
SSL Required Support Files for InstantClient 10.2.0.1.0
SSL Required Support Files for InstantClient Patch 10.2.0.4.0
Sun JDK 1.4.2.17.0
Sun JDK extensions 9.2.0.1.0
XDK Required Support Files 10.2.0.1.0
XDK Required Support Files Patch 10.2.0.4.0
XML Parser for Java 10.2.0.1.0
XML Parser for Java Patch 10.2.0.4.0
XML Parser for Oracle JVM 10.2.0.1.0
XML Parser for Oracle JVM Patch 10.2.0.4.0
There are 190 products installed in this Oracle Home.
There are no Interim patches installed in this Oracle Home.
OPatch succeeded.
$
$ more /u02/app/oracle/product/10.2/Db_1/cfgtoollogs/opatch/opatch_history.txt
Date & Time : Fri Jul 17 16:02:17 GMT-03:00 2009
Oracle Home : /u02/app/oracle/product/10.2/Db_1
OPatch Ver. : 10.2.0.4.7
Current Dir : /u02/app/oracle/product/10.2/Db_1
Command : -v
Log File : /u02/app/oracle/product/10.2/Db_1/cfgtoollogs/opatch/opatch2009-07-17_16-02-17PM.log
Date & Time : Fri Jul 17 16:38:05 GMT-03:00 2009
Oracle Home : /u02/app/oracle/product/10.2/Db_1
OPatch Ver. : 10.2.0.4.7
Current Dir : /home/ora10g/8534387
Command : napply -skip_subset -skip_duplicate
Log File : /u02/app/oracle/product/10.2/Db_1/cfgtoollogs/opatch/opatch2009-07-17_16-38-05PM.log
Date & Time : Fri Jul 17 17:53:30 GMT-03:00 2009
Oracle Home : /u02/app/oracle/product/10.2/Db_1
OPatch Ver. : 10.2.0.4.7
Current Dir : /home/ora10g/8534387
Command : lsinventory -detail
Log File : /u02/app/oracle/product/10.2/Db_1/cfgtoollogs/opatch/opatch2009-07-17_17-53-30PM.log
$
Please let me know if you need more info.
Regards, and thanks in advance!
Martin

You were right. It was a permissions issue:
hostname:/root# ls -ltr /u02/app/oracle/product/10.2/Db_1/lib/libjox10.so
-r-xr-xr-x 1 ora10g oinstall 20041728 Apr 23 2008 /u02/app/oracle/product/10.2/Db_1/lib/libjox10.so
Thanks.
damorgan wrote:
"is not writeable." means one of two things.
1. It does not exist.
2. Permissions are not set correctly.
Determining which it is ... that is the first step.

ASM 10g RAC

Hi Team,
We are using 10g RAc with ASM file system....here the problem is ..One of our engineer by mistake added a datafile in File System insted of adding into ASM disk groups.. it has created in node1 oracle home location....and the file is currently used by database....
295 +DG8/datafile/pm_tdat1_084.dbf                     10240
296 +DG9/datafile/pm_tdat_001.276.771180789            10240
*297 /oracle/product/10.2.0/db_1/dbs/+DG5 5120*
298 +DG9/datafile/pm_tidx_001.277.771224587             5120
How to make this as ASM file system..!!
Thanks,
MM
Edited by: user7439393 on Dec 30, 2011 12:29 AM

The backup into the ASM diskgroup can be done online.
For the switch to copy and the following recover datafile, the datafile needs to be set offline, though.
The amount of Redo, generated during the Online Backup determines the time the recovery will need.
Kind regards
Uwe Hesse
http://uhesse.wordpress.com

I open .mpg file using QT and there is sound...NONE in FCP

I have an MPEG2 file on the computer, and opening it in Quicktime there is sound accompaning it, like it should be. When I drag the clip into FCP, there is no sound? What is going on here? What can i do to get the sound back? I checked the properties and the audio is demuxed under QT.

It probably means you have a muxed (multiplexed) file. Use a program like MPEG Streamclip to demux the file and convert it to an editable format before importing it into FCP.
MPG is a delivery format - not an editing format.
-DH

Oracle 11gR2 rac database upgrade

Hi,
I need to upgrade Oracle 11.2.0.3 rac db (TB) to 11.2.0.4 in unix environment
database is 2 node rac with asm file structure. oracle home is shared by multiple databases.
Could anyone guide for best approach to proceed with this upgrade?
What changes are need to done in existing 11g cluster home and asm structure for this successful upgrade?
Thanks

Hi,
For Grid Upgrade you find complete details at - Things to Consider Before Upgrading to 11.2.0.3/11.2.0.4 Grid Infrastructure/ASM (Doc ID 1363369.1)
For DB Upgrade following note can help. You need to select the option 3 for RAC DB.
Troubleshooting Assistant: Oracle Database/Client Upgrade - Downgrade (Doc ID 1561791.2)
HTH,
Pradeep

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     ii. High Availability Concepts.
     iii. Advantage of using Real Application Cluster
     RAC Architecture and concepts
i. Difference between Standalone and RAC
ii. Various components of Real Application Cluster (RAC)
iii. Importance of cluster software and shared storage.
iv. Different ways of sharing files across cluster
v. Describe the purpose of using services with RAC
     RAC Installation and Configuration Part I
     i. Outline Oracle 10g RAC Installation
     ii. Pre-Installation Tasks
     iii. Cluster verification utility
     RAC Installation and Configuration Part II
     i. Install Cluster software
     ii. Install Database software
     iii. Launching VIPCA
     iv. Cluster database creation
     RAC Database Instances Administration
     i. Starting and stopping RAC Instances
     ii. RAC Initialization Parameter Files
     iii. Adding / Deleting a Node to a Cluster
     iv. Adding / Deleting Database Instance
     Automatic Storage Management in RAC
     i. Describe Automatic Storage Management (ASM)
     ii. Install the ASM software
     iii. Set up initialization parameter files for ASM
          And database instances
     iv. Start and shut down ASM instances
     Administering Redo, Undo and Services
     I. Managing redo log groups in a RAC environment
     ii. Managing undo tablespace in a RAC environment
     iii. Using SRVCTL to manage ASM and Database instances
     iv. Dealing with the ocr and voting disk
     Different Ways of making connection in RAC
i. Configuring load balancing
ii. Overview of Fast Application Notification(FAN)
iii. Configuring Transparent Application Failover(TAF)
     Managing Backup and Recovery in RAC
     i. Configure database in Archive Log Mode
     ii. Configure RMAN
     iii. RAC database backup and recovery
     RAC database Cloning
     PATCH APPLY IN RAC
     RAC software Upgradation
     RDBMS software Upgradation
     Database Upgradation
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Backup - ASM vs regular cooked file system

Use Oracle 11g on Linux.
The disk system is ASM. For instance, the FRA is configured based on a ASM disk group +FRA (along withe multiplexed logs and control files). This is one place for the backup and multiplexing.
Now, I intend to place the multiplexed files also to a second location (disk). For this disk, I have two choices: 1) Use the ASM diskgroup 2) Use the regular datafile (/u01/oracle/oracdata/back).
Good thing about the cooked file system ( I can think) is that I can see the location of the file by going to the file manager and locate the directory of the files, kind of transparent.
For doing so, will it incur the opertion cost in the future? (As compared to the ASM diskgroup, though files somewhat hidden from the view, but Oracle will take care of "everything").
So, any comment on the file system of the second disk? (Oracle ASM vs regular cooked file system).
Thanks

I suggest you continue using ASM and use the ACFS feature.
From 11.2.0.3 I don't use FRA on ASM only, I'm using FRA under ASM/ACFS mount point.
Oracle Automatic Storage Management Cluster File System (Oracle ACFS) is a multi-platform, scalable file system, and storage management technology that extends Oracle Automatic Storage Management (Oracle ASM) functionality to support customer files maintained outside of Oracle Database. Oracle ACFS supports many database and application files, including executables, database trace files, database alert logs, application reports, BFILEs, and configuration files. Other supported files are video, audio, text, images, engineering drawings, and other general-purpose application file data.
Starting with Oracle Automatic Storage Management 11g Release 2 (11.2.0.3), Oracle ACFS supports RMAN backups (BACKUPSET file type), archive logs (ARCHIVELOG file type), and Data Pump dumpsets (DUMPSET file type).

Oracle Streams on a Rac Environment

Hi
I have some questions with respect to Setting up Streams on a rac Environment.Would appreciate a quick response as I need the answers by tommorrow.Any help would be greatly appreciated.Here are the questions
1> Do we have to create capture process for each active instance on only 1 capture process will do?
2> If yes then do they need to have a seperate queue for each one?
3> How will the apply process access multiple capture process and the propogation take place?
4> can only 2 tables in the source be replicated instead of the entire database?
5> In case if we use a push job if both the primary and secondary go down how can we move to the third instance and use it?
6> If the instance goes down do we have to restart the capture process once again?
7>What is the best suited for rac - ASM/RAW FILES with respect to Streams?
Regards
Shweta

Streams in 9iR2 RAC environment mines only from archive logs not online redo logs. This restriction is lifted in 10g RAC. If you choose to go thru the downstream capture route in 10g then you can only mine from archive logs in 10gR1.
Having said the above here are my answers:
1> Do we have to create capture process for each active instance or only 1 capture process will do?
You can run multiple capture processes each on difference instance in RAC. Unless you have a requirement to do so, a single capture process would suffice. The in-memory queue should also be on the same instance as the capture process is running from.
2> If yes then do they need to have a seperate queue for each one?
YES
3> How will the apply process access multiple capture process and the propogation take place?
Propagation is from a source queue to the destination queue. If the destination is a single instance database, then you can direct propagations for all of your capture(s) into a single apply queue. If the destination is also RAC then you can run multiple apply processes on each node and apply changes for specific set of tables. Maintenance would be something to think about here along with what happens when one node goes down.
4> can only 2 tables in the source be replicated instead of the entire database?
YES. Streams is flexible to let you decide what level you want to replicate.
5> In case if we use a push job if both the primary and secondary go down how can we move to the third instance and use it?
In theory propagation is a push job. There are certain things you need to configure correctly. If done, then you can move the entire streams configuration to any of the surviving node(s).
6> If the instance goes down do we have to restart the capture process once again?
In 9iR2 you have to restart the streams processes. In 10g the streams processes automatically migrate and restart at the new "owning" instance. In both versions, Queue ownership is transferred automatically to the surviving instance.
7> What is the best suited for rac - ASM/RAW FILES with respect to Streams?
Streams is independent of the storage system you use. I cannot think of any correlation here.

Controlfile lost in RAC environment

HI,
One of my controlfile got corrupted in RAC where the file was placed in ASM directory...
I issued shutdown abort to database and removed the corrupted file from asmcmd prompt..
Now i am trying to copy the another controlfile which is healthy one to the failed controlfile..
But failing to do it,,, ..
Not aware of exact steps to be followed..
how to copy ASM controfile to another when database is in nomount state,,,
Regards,
TEJASWI

Hi Tejaswi,
Duplicating a control file in ASM is a bit complicated and unfortunately requires downtime of all instances.
Here are the steps:
A) Backup your pfile (optional step)
ex: create pfile=’/u02/oracle/admin/sid/pfile/initsid.ora’ from spfile;
B) Add to control file parameter in spfile the diskgroup for FRA. In your case it mght be ARCDG.
alter system set control_files = ‘your old existing control files’, ‘+ARCDG’ scope=spfile sid=’*';
C) Backup controlfile (optional step)
alter database backup controlfile to trace;
D) Shutdown all instances
srvctl stop database -d <your database>
E) Startup a single instance in nomount
startup nomount
F) Connect to rman
rman nocatalog
connect target /
G) Create new copy from existing control file
restore controlfile from ‘ your old existing control file including full path’;
H) mount and open your instance. Check for newly created control files.
Select name from v$controlfile;
J) Add the new name control file to control_files parameter in spfile.
Alter system set control_files = ‘your old existing control file’, ‘your new control file’ scope=spfile sid=’*';
K) Bounce your databases for verification
srvctl stop database -d <your service name>
srvctl start database -d <your service name>

Compress or reduce file size

This is a pretty basic question but I have never had this issue before. I have an mpeg file (mpeg1 muxed codec) of 18mb which is too big to email. What's the best way of either decreasing the file size or compressing it?
Also, I seem to think that neither iMovie HD or iMovie 08 can deal with an old mpeg file. . the sound gets lost?
Thanks
Tom

Also, I seem to think that neither iMovie HD or iMovie 08 can deal with an old mpeg file. . the sound gets lost?
This is normal. The QT structure is "playback only" compatible with multiplexed files (MPEG-1, MPEG-2, VOB, Flash, etc.). Use an MPEG-base, third party conversion application (with required QT components installed if needed) here to transcode the content and retain audio. (I.e., the free MPEG Streamclip application will handle MPEG-1 content.)
I have an mpeg file (mpeg1 muxed codec) of 18mb which is too big to email. What's the best way of either decreasing the file size or compressing it?
There are two basic approaches here. The first is to re-compress the file using a more efficient codec (like H.264/AAC) using a lower data rate than your original file. Depending on your original video data rate, you may have a lot of "headroom" for re-compression or only a small amount. In the later case, you may have to also reduce the dimension of your export to preserve maximum quality. What you finally do may likely depend on what you can "live with" in terms of quality and file size.
A second, approach would be to upload your original file to an online server and then send the URL for the file, a reference movie, or a QTL (QuickTime Media Link) file which will play the online movie back on the recipient's computer. An offshoot of this approach would be to post the file to your own web site page using an application like iWeb and allowing the recipient to view and/or download the file directly from your site or subscribe via RSS if you plan to provide content on a regular basis (e.g., as a Podcast or Video Blog).

Solaris cluster, Oracle10g RAC

I just want to understand, which one is more favorable, most popular combination used by sun customers for Oracle10g RAC.
1) Solaris cluster + VERITAS Storage Foundation
2) Solaris cluster + QFS

Please refer to http://docs.sun.com/app/docs/doc/820-2574/fmnyo?a=view for the supported options for Oracle RAC data storage. This is important because if you stray outside these you will not be on a jointly Sun/Oracle supported configuration.
Therefore, if you want to put Oracle RAC (tablespace) data files on a cluster file system, you must use shared QFS as that is the only supported option open to you. Furthermore, you can only run sQFS on top of SVM/Oban or h/w RAID - we do not support running it on VxVM/CVM.
Regards,
Tim
---

RAC x Multiplexing files

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