That's what I thought..but the sentence above makes it sound like something different. Is it just bad writing and lousy editing?
Bad writing and editing.
128.128.1.1 might be an IP Address for 1 piece of hardware that is configured as a server.
128.128.5.100 might be an IP address for 10 pieces of hardware all linked together, all operating as a single server.
The second one just has a much higher storage capacity, and depending on the type of hardware, would be faster.