OraFAQ Forum: Backup & Recovery

Home » RDBMS Server » Backup & Recovery » rman backup size (Linux 2.6.18-92.1.13.el5)

Show: Today's Messages :: Polls :: Message Navigator
E-mail to friend

rman backup size [message #552702]

Fri, 27 April 2012 07:42

dba_7722
Messages: 197
Registered: August 2010
Location: Delhi

Senior Member

Hello Expert,

Does change in segment size effect the rman backup size..??

I'm trying to understand do Rman backup the empty block from datafiles..?? And if it escape the empty block than inserting data in tables (increasing the number of used block) might change the size of total backup (Rman) size.

Please correct me.

Report message to a moderator

Re: rman backup size [message #552703 is a reply to message #552702]

Fri, 27 April 2012 07:55

Michel Cadot
Messages: 68776
Registered: March 2007
Location: Saint-Maur, France, https...

Senior Member
Account Moderator

Empty blocks for rman means blocks never used nor allocated to any object.
That is block above files HWM.
These blocks are not backed up.

Regards
Michel

Report message to a moderator

Re: rman backup size [message #552704 is a reply to message #552702]

Fri, 27 April 2012 07:58

dba_7722
Messages: 197
Registered: August 2010
Location: Delhi

Senior Member

Thanks Michel.

Also below link got very formative explanation.

http://www.orafaq.com/forum/t/81380/2/

Thanks.

Report message to a moderator

Previous Topic:	clone the database on the same machine
Next Topic:	RMAN

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

]

Current Time: Sat Apr 11 08:20:47 CDT 2026