CLARiiON INTRODUCES NEW ENTERPRISE DISK ARRAYS

New Products Offer Exceptional Performance Storage Solutions for Mission-
Critical Computing Environments

SOUTHBORO, Mass., February 5, 1996 -- The CLARiiON Business Unit of Data
General Corporation today announced significant enhancements to its
industry leading CLARiiON (C2000 series) high availability storage
subsystems. These third generation disk arrays are designed to deliver
exceptional high performance and scalable storage solutions for the open
enterprise marketplace. The new models, 2800, 2810 and 2900, deliver
significantly enhanced performance and enable future capacity and caching
expansion.

They incorporate the pioneered features of CLARiiON including:

* Completely redundant components to eliminate single points
  of failure
* Dual-active storage processors with protected cache
* Concurrent support for multi-RAID configurations
  (0, 1, 3, 5, and 1/0)
* Patented parity handling algorithms

Throughput, or I/Os per second, of the new arrays is increased from 2 to
2.5 times the current generation product, as well as reducing response
time by more than half. The new arrays performance is facilitated by the
Motorola Power PC microprocessor (603e). All of the CLARiiON unique data
integrity and high availability features have been maintained in the new
models.

"We have seen fully-configured, optimized performance of over 6000 I/Os per
second in RAID 5 tests with the C2900," said Peter Gibbs, Director of
Marketing for the CLARiiON business unit. "While performance at the
systems level depends on many variables, we believe that it is unlikely
that CLARiiON will lose any benchmarks with these new products." Gibbs
added, "Combining the new levels of performance with CLARiiON
best-of-breed data integrity and high availability features give us a
winning solution in the open systems storage market."

"With the growth of applications such as data warehousing, the demand for
secure, affordable, and high performance storage for mission- critical
data is exploding," said Larry Hemmerich, Vice President and General
Manager, CLARiiON Business Unit. "Our new disk array subsystems answer
this demand with a more cost-effective solution than any other storage
alternatives, while providing the data integrity and data availability
required by commercial applications." According to Hemmerich, CLARiiON
disk array subsystems using RAID 5 technology provide a 20 to 50 percent
cost-savings over disk mirroring technologies.

Albert Lui, of Silicon Graphics Senior Technical Staff, is quite impressed,
"Overall, I am very pleased with this product. Its performance is at least
equal to and in most cases better then any RAID 5 product that we have
ever tested."

Additionally, upgrades to higher capacity drives and expanded read/write
cache levels will be provided. The higher capacity drives (3.5 inch, 9GB
capacity) will be introduced in the Spring of 1996. The new drives will
more than double the capacity of the CLARiiON arrays up to 175GB per 20
slot chassis or 700GB in a full enterprise cabinet configuration. Cache is
standard on the new array family. Initial shipments support the current
maximum option cache level of 64MB per SP, however, this limit will be
expanded to 256MB per SP in the second calendar quarter of 1996.

The new models support up to twenty 3.5 inch SCSI drives per chassis and
are targeted at medium-to-large-scale, open heterogeneous-server computing
environments. Current total capacity per chassis (desk- side and
rack-mount) is 84GB utilizing 4.2GB drives and will begin shipping in
early March. List pricing for the new models will be as low as $1.53 per
megabyte for heavily configured models.

The new storage processors and associated microcode can be ordered as
upgrades to existing C2000 CLARiiON arrays via an upgrade program to be
announced this quarter.

The new products deliver on the CLARiiON strategic initiative to provide
enterprise storage solutions with connections to the top open platforms,
terabyte capacity, high availability software extensions, and proven data
integrity and availability features.

The CLARiiON 2000 disk array family is supported on the top UNIX System
vendor platforms, including Hewlett-Packard, Silicon Graphics, Sequent,
Sun, IBM, Digital, Data General, Cray, Bull, NCR, Motorola, Convex, and
Intel PC Servers running Windows NT, NetWare, OS/2, and SCO UNIX.

The new product line supports the CLARiiON high-availability system
software solutions, including Applications Transparent Failover (ATF) for
automatic I/O rerouting in the event of a I/O failure, and GuardWare, a
server failover software product for clustered node environments. The
CLARiiON ArrayGUIde allows customers to monitor, configure, and tune
system performance from a single workstation to centrally manage every
array in a homogeneous or heterogeneous enterprise installation.

CLARiiON disk arrays are distributed by system vendors, OEMs, private label
suppliers, value-added resellers, and system integrators worldwide, all
part of an ever-expanding network of channel partners serving North
America, South America, Europe, South Africa, the Middle East, and Asia.

The CLARiiON business unit is a part of Data General Corporation. CLARiiON
leading disk array technology has been protecting customer data and
information for more than four years.

Data General, based in Westboro, Massachusetts, specializes in servers,
storage systems, and related software services for customers worldwide.
The company reported revenues of $1.2 billion for fiscal 1995. Additional
information on the company, its products, and its services is available on
the Internet at http://www.dg.com.

Press Contacts

Kathy Ficaro/Nicole Gorman, CLARiiON, 508/480-7196/480-7203

Jim Dunlap, Data General, 508 /898-6546

George Goldman, Edelman Worldwide, 212/704-4440
 
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