Mimicing a thread I saw elsewhere.
I generally use this list to name my machines: https://en.wikipedia.org/wiki/List_of_mythological_objects
For my main server I use loeding: a modified version of Lædingr, a chain forged by Thor to bind and were broken by Fenrir. (Norse Mythology)
I do random things like the names of vegetables or colors or car brands. But right now I am using Borg designations. Not in use, but an example would be eleven@twelve. Although not a server, I tend to add the capacity to USB drives. They are issued a number and I keep track of them. When one dies it gets deleted from the inventory list. So it would be IssueNumber-capacity 103-04G.