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RMAN Backup [message #603086]

Wed, 11 December 2013 06:19

TRaj
Messages: 82
Registered: September 2006

Member

Hi

Total Data files size is 485 GB but from Legato Networker tape backup, the size is around 420 GB!

The RMAN backup is not a compressed backup. So, then what makes this huge difference?

Thanks in advance.

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Re: RMAN Backup [message #603099 is a reply to message #603086]

Wed, 11 December 2013 07:33

Michel Cadot
Messages: 68775
Registered: March 2007
Location: Saint-Maur, France, https...

Senior Member
Account Moderator

RMAN does not backup blocks that have never been used (that is above the HWM of each file).

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Re: RMAN Backup [message #603101 is a reply to message #603099]

Wed, 11 December 2013 07:42

TRaj
Messages: 82
Registered: September 2006

Member

Thanks a lot Michel!

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