Confessions of the World's Largest Switcher
Subject:   an important piece is missing.....
Date:   2003-10-29 22:54:59
From:   anonymous2
Response to: an important piece is missing.....

You don't need ECC RAM if the software is designed with data redundancy in mind. If I recall correctly, HP showed a number of years back that in a demonstration of a machine that had some 50,000 known problems in hardware that software could be designed to compensate for problems and return accurate results.

In the case of VT, I believe they built error correction and fault tolerance into the software, allowing them to forgo expensive ECC RAM-based hardware.