It’s surprisingly hard to find a definitive answer to the question of what happens with Linux block device names when you get past drive 26 (ie. counting from one, the first disk is /dev/sda and the 26th disk is /dev/sdz, what comes next?) I need to find out because libguestfs is currently limited to 25 disks, and this really needs to be fixed.

Read the full thing at http://rwmj.wordpress.com/2011/01/09/how-are-linux-drives-named-beyond-drive-26-devsdz/