According to some searches and the LVM documentation on centos.org a "dmsetup ls" should give me more info. But it doesn't list devices with dm- numbers. Only like so: lv-name (major, minor) The minor numbers seem to be the same numbers that I can see as dm- numbers in an iostat. Is this by chance the dm- number, so that minor 2 would be dm-2? Kai -- Get your web at Conactive Internet Services: http://www.conactive.com