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September 19, 1995

TANDEM DOES ITS OWN UNIX SYMMETRIC MULTIPROCESSORS

By CBR Staff Writer

Tandem Computers Inc this week unveils the first implementation of its 300Mbps ServerNet router interconnect in home-grown Integrity symmetric multiprocessing Unix boxes called the S4000-CM line, with from one-to-four 200MHz MIPS R4400 processors. They are Tandem’s first home-grown Unix symmetric multiprocessing units. S4100s are general purpose systems; the S4200 FT achieves fault-tolerance by replicating hardware (three- and four-way fault-tolerant units require two cabinets). Both ship in December. They accommodate 256Mb RAM per processor and two ServerNet input-output systems, starting at $59,000. ServerNet allows copper connections over distances of 20 feet, with FDDI for local network clustering to come. By the end of 1996 Tandem promises to have super-clustering for connecting remote systems over ServerNet, creating System Area Networks. Currently up on Unix System V.4.2MP, it claims it will have a single system image and microkernel technologies to support System Area Networks. Meantime, it is also wo rking on what looks like an OEM product: a CPU-independent ServerNet-in-a-box to which a variety of CPUs could be attached. It will bring PCI to the Integrity line by mid-1996. Tandem’s new naming scheme will see Unix symmetric multiprocessing boxes carry S4000, S5000 and S6000 tags, delineated by fault-tolerance – FT, commercial – CM, or other annotations. Tandem’s R10000 Windows NT machines will be S1000, S2000 and S3000s with ServerNet Himalayas going through S7000, S8000 and S9000.

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