We need a new word, really

The first definition for the word redundant on Dictionary.com reads:

1. Exceeding what is necessary or natural; superfluous

I mention this only because I'm a bit of a computer geek, and in the dark, dreary recesses of the computer network rooms, the word redundant always refers to the repetition of hardware as a protection against system failures. So, in the computer geek world, redundancy is anything but "superfluous" or unnecessarily repetitive.