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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.

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

Fri, 27 April 2012 07:55

Michel Cadot
Messages: 68770
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

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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.

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