RMAN and Disk Space

From: <Rajesh.Rao_at_jpmchase.com>
Date: Fri, 04 Oct 2002 14:08:35 -0800
Message-ID: <F001.004E1679.20021004140835@fatcity.com>

Since everyone's advocating RMAN here, I decided to start an RMAN backup for one of our development databases. And I had issues with disk space. Now, one of the tablespaces has been allocated 15 Gb of space, of which only 2.2 Gb has been used as per dba_extents. I started an RMAN backup directing this tablespace backup to be written to a file system with 9 Gb of free space. This backup filled up the file system and errored out.

So, my question is, the first time you take a backup, does RMAN backup the entire datafile?

Thanks
Raj

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