Balancing size of RMAN backup pieces

From: Andy Kent <andykent.bristol1095_at_virgin.net>
Date: 4 Jan 2007 04:20:21 -0800
Message-ID: <1167913221.055603.293150@i80g2000cwc.googlegroups.com>

How does RMAN allocate datafiles to disk-based backup channels and can I control this?

One of our databases consists of eight datafiles of which by far the largest are two of 5GB. Our RMAN backup scripts allocate five disk channels each on a different filesystem, but we now only have 4GB free in each. (Hey, I only inherited this stuff). The backup fails because it seems to allocate each datafile round-robin to a single channel and the 5GB datafiles won't fit anywhere whole any more.

What control do I have over this?

9.2.0.5 on Solaris 5.8.

Thanks

Andy Received on Thu Jan 04 2007 - 06:20:21 CST