Our site has a SAN from EMC and the claim from the vendor is that such should never be an issue ________________________________ From: Jared Still [mailto:jkstill@xxxxxxxxx] Sent: Monday, February 12, 2007 6:02 PM To: naqimirza@xxxxxxxxx Cc: Michael Fontana; oracle-l@xxxxxxxxxxxxx Subject: Re: RMAN Performance Maladies On 2/12/07, Naqi Mirza <naqimirza@xxxxxxxxx> wrote: The problem I witnessed at a certain site - never got resolved, the site was also using RAID 5 - I suspected this as the culprit I would not expect RAID5 to be a problem during backup, unless there is a lot of write activity to the drives during that time. -- Jared Still Certifiable Oracle DBA and Part Time Perl Evangelist