Block change tracking file error

Hi,
when i selected
"enable block change tracking for faster incremental backups" option under Backup setting policy, and apply it, i get following error
error: "since the database area is not set you must specify a block change tracking file"
how can i fix this error.
1. is it better to provide a block change tracking file, if then how do i do it.
else
2.how can i set a database area
Thanks,
Philip.

Hi Anita,
i have 2 more problems which i have explained below.
1. i am running my oracle 10g in linux and after starting the listener, when i try to start the database using
"dbstart" command, i get following error
"Failed to auto-start Oracle Net Listener using /ade/vikrkuma_new/oracle/bin/tnslsnr"
i really have no idea what is this error and how to solve this erorr. Can you please help me. i have also posted a separate forum for this with the heading as
"dbstart" command error
2. my tnsservice name works sometimes and some other times it does not work at all.
at sqlplus prompt when i login as
sys/pwd@orcl as sysdba
sometimes it works fine, other times it gives me error similar to -- protocol could not identify this service name.
Thanks,
Philip.

Similar Messages

How to multiplex the block change tracking file?

Hi,
I have a question to change block tracking feture.
The normal way to enable block change tracking would be:
ALTER DATABASE ENABLE BLOCK CHANGE TRACKING
USING FILE 'mydir/change_track.f'
REUSE;
What if my harddrive is gone?
Is there anyway to define more than one destinitaion like for archive log files?

The difference is... archive log files can contain irreplaceable data.
With Block Change Tracking the data is not irreplaceable , just run full RMAN backup and then regen the file. <- IMHO

Enable Block Change Tracking in 11gr2

Hi Team,
If my database file system is in ASM..Can I enable blk change tracking in local filesystem?
Or IS it better to do in ASM? Any new features in 11gr2?
Regards,
Manohar

Do you plan running DUPLICATE against that DB?
If yes, you should place the Block Change Tracking File in a location that would enable you to effectively deal with this nasty bug:
"Bug 10193846 - RMAN duplicate fails with ORA-19755 when BCT file is not accessible [ID 10193846.8]"
Also, If you plan to use DUPLICATE, you should “name” your Block Change Tracking File, rather than going with the system name.
This advice applied only for 11gR2 versions that are affected by the bug.
Iordan Iotzov
http://iiotzov.wordpress.com/
Edited by: Iordan Iotzov on Oct 2, 2012 7:19 AM

Block change tracking and Backup size

DB Version : 10gRelease
We have a Differential Incremental Backup strategy with Recovery Window retention policy. I haven't enabled BLOCK CHANGE TRACKING. Just would like to know if the backup size of both Level 0 and Level1 backups become smaller by enabling Block Change Tracking. Or is it just Level 1 backups' size which is going to decrease?
Thank you.

An excerpt from Oracle RMAN 11g Backup and Recovery by Robert G. Freeman & Matthew Hart
ISBN: 978-0-07-162861-7
The Block Change Tracking File
By default, when doing an incremental backup, any datafile that has changed in any way will be
backed up. This can make incremental backups take longer and will make them larger. RMAN
offers the ability to just back up changed database blocks. +This can make your incremental+
+database backups much smaller and shorter.+ To enable block change tracking, issue the command
alter database enable block change tracking. The result of this command will be the creation of a
file called the block change tracking file (BCTF).Checkout the word smaller.
Two things:
A. This is not Official oracle documentation ( Oracle press though)
B. This book is about 11g. I don't know if BCTF makes backups smaller in 11G.

Block change tracking

Hello,
I have a Oracle 10.1.0.5.0 on Windows 2003. My need to enable block change tracking. So I login SQL PLUS as sysdba:
SQL> ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE
'HOME/DB_INSTANCE/BLOCK_CHANGE.TRC';
ALTER DATABASE ENABLE
ERROR at line 1:
ORA-00439: feature not enabled: Block Change Tracking.
I have read some documentations and this is command I should use. Please help me where I can enable this feature.
Many thanks!

According to the metalink note 271197.1, the fast incremental feature is not included in the Standard Edition.
As suggested earlier, check the Edition you are working on.
Nicolas.

How to enable block change tracking with pfile

Hello
I want to use enable block change tracking (for fast incremental RMAN backup). kindly advice how can i use this parameter using pfile.
Thanks
Krishna

Krishna Agnihotri wrote:
Hello
I want to use enable block change tracking (for fast incremental RMAN backup). kindly advice how can i use this parameter using pfile.
You could have just tried ,
D:\app\aristadba\product\11.2.0\dbhome_1\database>sqlplus / as sysdba
SQL*Plus: Release 11.2.0.1.0 Production on Tue Aug 30 10:04:20 2011
Copyright (c) 1982, 2010, Oracle. All rights reserved.
Connected to an idle instance.
SQL> startup pfile=initorcl112.ora
ORACLE instance started.
Total System Global Area 263639040 bytes
Fixed Size                  1373964 bytes
Variable Size             213911796 bytes
Database Buffers           41943040 bytes
Redo Buffers                6410240 bytes
Database mounted.
Database opened.
SQL> alter database enable block change tracking using file 'block';
Database altered.
SQL>Just to show that the file actually gets created,
SQL> alter database enable block change tracking using file 'block';
Database altered.
SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
D:\app\aristadba\product\11.2.0\dbhome_1\database>dir
Volume in drive D has no label.
Volume Serial Number is A408-F176
Directory of D:\app\aristadba\product\11.2.0\dbhome_1\database
08/30/2011 10:05 AM        11,600,384 BLOCK
05/17/2010 10:45 AM             2,048 hc_orcl112.dat
10/17/2009 01:35 PM             1,015 INITorcl.ORA
08/30/2011 10:01 AM             1,042 INITorcl112.ORA
              12 File(s)     21,412,139 bytes
               3 Dir(s) 17,036,451,840 bytes free
D:\app\aristadba\product\11.2.0\dbhome_1\database>sqlplus / as sysdba
SQL*Plus: Release 11.2.0.1.0 Production on Tue Aug 30 10:06:40 2011
Copyright (c) 1982, 2010, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> alter database disable block change tracking;
Database altered.
SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
D:\app\aristadba\product\11.2.0\dbhome_1\database>dir
Volume in drive D has no label.
Volume Serial Number is A408-F176
Directory of D:\app\aristadba\product\11.2.0\dbhome_1\database
08/30/2011 10:06 AM    <DIR>          .
08/30/2011 10:06 AM    <DIR>          ..
05/17/2010 08:55 AM    <DIR>          archive
05/17/2010 10:45 AM             2,048 hc_orcl112.dat
10/17/2009 01:35 PM             1,015 INITorcl.ORA
08/30/2011 10:01 AM             1,042 INITorcl112.ORA
12/22/2005 04:07 AM            31,744 oradba.exe
08/30/2011 09:05 AM             9,314 oradim.log
12/24/2009 08:09 PM             1,536 PWDorcl.ora
08/07/2011 11:00 PM             1,536 PWDorcl112.ora
04/15/2011 05:52 PM         9,748,480 SNCFORCL112.ORA
02/10/2011 09:00 PM             3,584 SPFILEORCL.ORA
08/30/2011 09:59 AM             3,584 SPFILEORCL112.ORA
02/10/2011 09:07 PM             7,872 upgrade.logAman....
Edited by: Aman.... on Aug 30, 2011 10:08 AM added 2nd code snippet

Change tracking file

Hello,
When I enable block change tracking, is it any method to maintain this file? Do we delete and recreate it in any way? Or we just let it stay and grow automatically?
Thx for help,
Aliq

Hi,
From the docs,
http://download.oracle.com/docs/cd/B19306_01/backup.102/b14192/bkup004.htm#sthref424
The file is an Oracle Managed file and hence means that it does'nt require any management for the dba side.
Do we delete and recreate it in any way?
Once disabled, we can overwrite teh file with the Reuse option and use it again if we see its increasing enormously.
Also from teh docs again,
After the restore and recovery, the change tracking file is cleared, and starts recording block changes again. The next incremental backup after any recovery is able to use change-tracking data.
So I guess attempts are made by oracle that file remains in a satisfactory limit.
HTH
Aman....

RMAN block change tracking doubt

hi guys,
I want to speed up my RMAN incremental backup.So i decide to enable the block change tracking mechanism. How to implement it ? Should i create any file or set any parameters? plz guide me...
Oracle version:10.2.0.1.0
WindowsNT
TIA,

ALTER DATABASE
ENABLE BLOCK CHANGE TRACKING
USING FILE os_file_name;
use this command on the database level. As soon as the file kept the data change tracking, u will speed up ur increamental backups.

"block change tracking" equivalent in sql server

Hi All,
If someone has expertise in both oracle and sql server, pls let me know if there is " block change tracking" equivalent in sql server. I know sql server has incremental/differential backup, curious to know whether it got this equivalent feature.
Regards,
Satheesh Shanmugam
http://borndba.com

May be the below link will help you:
http://www.databasejournal.com/features/mssql/article.php/3824196/Introducing-Change-Tracking-in-SQL-Server-2008.htm

Change Tracker Authorization error

Dear All,
We have set up MDM change tracking application in SAP MDM 7.1 SP6.
Inspite of having all Admin authorizations rights in the portal,
I receive error : You do not have the authorization to use MDM Change tracker application.
Where are the authorisations for the Change tracker set?
Please suggest !
Regards,
Harmony

Harmony -
In portal you must be having portal Role property editor you can choose assign action tabs and check for MDM_CHANGE_TRACKER.
since you are configuring this on standard process is Create an iView using the context menu of the iView folder. and then in iview wizard select WD java application as source and i think then choose iview type.
Choose your source object tcmdmchangetracker u2192 com.sap.mdm.MdmChangeTracker u2192 MdmChangeTracker
this iview must be under sap.com u2192 MdmChangeTracker branch
you also need to configure the JDBC alias parameters
after that this iview can be placed on portal page.
also you need to download sca files from service market place prior to install Change tracker. JDBC driver needs to insink with the Database as well. and i don't think any additional setting required in SAP MDM console. let us know your findings.
HTH
thx
Deep

Changing Track File Type

Hi there,
How would you be able to change a track's file type or download from iTunes as a different file type? If possible, I'm aiming for .wma and/or .mp3 types.
Thank you.

Ryking wrote:
Hi there,
How would you be able to change a track's file type or download from iTunes as a different file type? If possible, I'm aiming for .wma and/or .mp3 types.
Thank you.
Almost all music stores sell their downloads in MP3 format. The only exceptions that I am aware of are 4ad.com and the iTunes Store. If you buy from amazon.com or any of the others you will be getting MP3s and will not have to convert.
If your iTunes library has any files in odd formats that you wish to convert to MP3, you can follow the instructions in this support article: http://support.apple.com/kb/HT1550

Block change Track and ASM

Hi
I have database running 3 node RAC and ASM, current version 10.2.0.4. Since the size is 1T and to minimize the backup time wants to implement BCT. As you know to enable BCT we need to create a file, my question can we create this file in ASM? or it has to out side ASM?
Thanks,

It can be in ASM.

Ora-00439 enable block change tracing

Hi,
I am attempt to use the feature ENABLE BLOCK CHANGE TRACKING and cannot obtain succefully. When I issue the statement:
sql> alter database enable block change tracking;
I get the error:
ORA-00439 - feature not enable
My estructure is: Red Rat 4 and Oracle 10.2.0.1
Samebody can help me?

I suspect the message means that the feature is only available with the Enterprise Edition. Check the documentation for the standard edition.
If the feature is available with the standard edition then use the full syntax where you specifiy where you want the block change tracking file written to and see if that makes a difference. I believe the default with 10g is to go to the database flashback directory. If you did not configure one then that could be a problem. If you used the full syntax and do have a flashback area but that was not where you tried to place the file I would try defaulting it.
I lean to the feature not being available in your version.
HTH -- Mark D Powell --

Block Change Trackin Performance

Hi,
I'm planning to use incremental backup with Block Change Tracking(BCT) enabled.
Well i see the good points of BCT like reducing network traffic and cpu cycles such that when RMAN checks for datafiles that has changed in block, it will use the BCT file instead of checking the datfile one by one.
Now it cannot yet implemented it because of this question?
"How is the performance hit of BCT?" If there is a block / blocks that are updated / changed, BCT will record it in the file, how much of the resources of the server will be used? Is it too much that it will cause slowness in daily transactions?"
Hope someone will help,
Jay

There will a "small" overhead as per the documentation.
http://download.oracle.com/docs/cd/B19306_01/backup.102/b14192/bkup004.htm#BRBSC125
<quote>
Change tracking is disabled by default, because it does introduce some minimal performance overhead on your database during normal operations.
<quote>
I also have seen some bugs in 10gR1 related to database hanging issues after enabling BCT but those have been fixed in 10gR2.
All said, you can carry out some testing in your test environment to measure the performance overheads, if any.

I can not transfer date from one hard drive to another, I keep getting an error because I have two of the same file names and one file name is in caps and I cant change the file name

can not transfer date from one hard drive to another, I keep getting an error because I have two of the same file names and one file name is in caps and I cant change the file name. My original external has an error and needs to be reformatted but I dont want to lose this informations its my entire Itunes library.

Sounds like the source drive is formatted as case sensitive and the destination drive is not. The preferred format for OS X is case insensitive unless there is a compelling reason to go case sensitive.
Why can't you change the filename? Is it because the source drive is having problems? If so is this happening with only one or two or a few files? If so the best thing would be to copy those over individually and then rename them on the destination drive.
If it is more then you can do manually and you can't change the name on the source you will have to reformat the destination as case sensitive.
Btw this group is for discussion of the Support Communities itself, you;d do better posting to Lion group. I'll see if a host will move it.

Block change tracking file error

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