Tandem Computers Inc, Cupertino can now offer users of its Integrity S-2 fault-tolerant Unix computers – look for the single model to evolve into a family with R3000 RISC-based additions next Monday – a fault-tolerant Ethernet connection as an option. The Reliable Ethernet option extends the Integrity fault-tolerant architecture to the subsystem that links to 802.3 Ethernets by using two standard controller modules to connect to the same local net. If one path fails, it automatically switches to the other; an Integrity takes up to two. The software costs $3,000 plus $75 monthly or $5,700 for a five-year paid-up licence. Two Ethernet controllers are also needed.
