Device

http://zumastor.org/man/ddsnap.8.html a way to ‘sync’ block devices in ‘rsync’ style. Useful to implement backup of xen VMs based on LVM volumes. Also see http://serverfault.com/questions/27397/sync-lvm-snapshots-to-backup-server

http://www.linuxdevcenter.com/pub/a/linux/2007/07/05/devhelloworld-a-simple-introduction-to-device-drivers-under-linux.html new article by Valerie Henson