(4) All efforts have been made to ensure the accuracy of all information in this manual. If you find
any part unclear, incorrect, or omitted in this manual, contact the sales agent where you
purchased this product.
(5) NEC assumes no liability arising from the use of this product, nor any liability for incidental or
consequential damage arising from the use of this manual regardless of (4) above.
Welcome to the NEC Express5800/ft series.
NEC Express5800/ft series is a “fault-tolerant (ft)” server focusing on “high reliability” in terms of
fault-tolerance, in addition to “high performance,” “scalability,” and “general versatility” provided
by NEC Express5800 series. In the event of trouble, its dual configuration will allow the system to
instantaneously isolate the failed parts to assure non-stop running; operation will be moved
smoothly from one module to the other, minimizing damage to it. You can use this ft series in a
mission-critical system where high availability is required. By the use of Linux operating system, it
also provides outstanding openness for general-purpose applications, etc.
To make the best use of these features, read this User's Guide thoroughly to understand how to
operate NEC Express5800/ft series.