Please have a look at this http://www.net.oregonstate.edu/~kveton/fs/ While I'm not doubting the numbers per se, I fail to see how the lines: ext3 w/ noatime and ext3 w/ noatime,data=ordered can actually be different. According to the docs, the default mode IS data=ordered! -- Ralf Hildebrandt (Im Auftrag des Referat V A) Ralf.Hildebrandt@charite.de Charite Campus Virchow-Klinikum Tel. +49 (0)30-450 570-155 Referat V A - Kommunikationsnetze - Fax. +49 (0)30-450 570-916 What goes up, must come down. Ask any system administrator.