Hello could you tell me, please. what RAID controllers are you using (make and model). Do you have any issues with them? thanks Elena __________________________________________________ Dr Elena Korolkova Email: [log in to unmask] Tel.: +44 (0)114 2223553 Fax: +44 (0)114 2223555 Department of Physics and Astronomy University of Sheffield Sheffield, S3 7RH, United Kingdom