What is really puzzling me is that the ataraid device (/dev/ataraid/d0p1 mounted as /bigdisk) 2x 123GB IBM Deskstar's is formated as ext2...top and ps etc... show a fight between kjournald and kupdated and all searches for kjournald or kupdated fights suggest ext3 issues... :-) It's a RedHat 7.2, 2.4.7-10 custom kernal (I added in the Promise FastTrak support and HIGH mem support to break through the c800MB barrier to use the whole 1GB RAM). Creates the array fine... I get a problem as soon as I attempt to populate it... the box is a Athalon 1.4GHz and 1GB RAM, two other 60GB drives on IDE0 and IDE1 I get an almost total slowdown/shutdown and top shows the load going to 8 or nine with noone logged in and console only.... Behaviour only when accessing the ATARAID. ext3 for / only everything else ext2 Has anyone any idea/seen this behaviour or got an 'out' ? egards, Dominic