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)
Not so much servers as removable media. Three letter creature names: ape, bat, cat, dog, elk, fox, gnu, hen, imp, jay, kit, lee (fish), mus, nan (from Inuit folklore), owl, pug, qua, rat, sas (from Slavic folklore) and so on (I need to find my printed list beyond here)