How many servers out there named gandalf? I've got one in my own house.
Every variable and every method name was given a female first name. "Each of these is named for one of Sten's girlfriends." Given the number of names required, it was improbable that these were real girlfriends, but Sten gave no hint about this being fiction.
You can definitely tell personalities by system names.
We had a number of boxes named following this theme. For instance, the firewall box was named pelennor.