> No, I dislike UUIDs. I dislike, strongly, lots of extra typing that > doesn't really get me anything. MAYBE, if you're in a Google or Amazon > datacenter, with 500,000 physical servers (I phone interviewed with them > 10 years ago)... but short of that? Nope. You can (perhaps should...) use the World Wide Name, which is a manufacturer ID unique to each disk. Contrary to the /sdX, it doesn't change with different configurations, OS or computer. An example of such an ID is the following: /dev/disk/by-id/wwn-0x50025ee3b4f5ca61 Many modern disks have their WWN printed on their labels.