Perhaps, you are hitting the issue described in this blog post -
http://www.pythian.com/blogs/363/slow-rman-backups-check-this-out
On 2/26/07, Orysia Husak <Orysia.Husak_at_apollogrp.edu> wrote:
> After we upgraded one of our databases from 10.2.0.1 to 10.2.0.2, our rman
> backup took 4 to 5 times longer. We began seeing that 65% of the time was
> being spent in control file sequential reads. We have googled, did metalink
> searches, and submitted an SR, but haven't been able to determine what is
> causing the control file sequential read waits.
--
Best regards,
Alex Gorbachev
http://www.oracloid.com
--
http://www.freelists.org/webpage/oracle-l
Received on Tue Feb 27 2007 - 21:34:39 CST
