Red Hat GFS Now Supported by Oracle, EMC and NetApp

Broad Industry Support, Including Support on Oracle Solutions, Signals Maturity and Enterprise
Demand for the Open Source Cluster File System

SAN FRANCISCO--(BUSINESS WIRE)--Sept. 19, 2005--Red Hat, Inc. (NASDAQ:RHAT - News), the world's
leading provider of open source solutions to the enterprise, announced today that Red Hat Global
File System (GFS) is now supported by Oracle for use in Oracle RAC solutions, EMC CLARiiON®
networked storage systems, EMC Celerra® iSCSI network attached storage (NAS) systems solutions and
NetApp for SAN interface solutions. Red Hat GFS is the first third-party cluster file system
supported by Oracle for RAC solutions on Linux.

"Commercial users don't want to be lab rats. The endorsement of GFS by some of the biggest players
in the market signifies this solution is really ready for prime time," said Steve Duplessie,
Founder and Senior Analyst at The Enterprise Strategy Group, Inc. "I expect we'll see lots of large
deployments in the very near future."

Red Hat GFS is the open source cluster file system designed for high-performance enterprise
workloads, such as Oracle RAC, web and application server clusters. GFS makes it possible to manage
a cluster of servers and shared storage as if it were a single system, by providing a common
cluster-wide filesystem. Having a common file system eliminates conflicts and problems that arise
when different servers want to access the same file at the same time.

Red Hat GFS is the only native 64-bit cluster file system on Linux for enterprise workloads, with
support for x86, AMD64/EM64T, and Itanium. It's also the most scalable enterprise cluster file
system on Linux, supporting up to 300 nodes. GFS is tightly integrated with Red Hat Enterprise
Linux, and it is POSIX-compliant, meaning that customers do not have to rewrite applications to use
GFS.

"When customers run Red Hat GFS combined with the Oracle Grid solution on servers based on the
Intel® Itanium®2 processor or on the 64-bit Intel® Xeon(TM) processor with Intel® Extended
Memory 64 Technology (EM64T), enterprises benefit from a reliable, secure, high-performance
platform designed for today's demanding commercial environments.", said Gregory Symon, Director of
Global Software Solutions, Intel Corporation.

"Red Hat GFS has been qualified as E-Lab(TM) Tested by EMC Corporation for use with EMC CLARiiON
networked storage systems and EMC Celerra iSCSI NAS systems. "The EMC E-Lab Tested Program is the
most comprehensive qualification program in the industry," said Tom Joyce, EMC Vice President,
Storage Platforms Marketing. "EMC's rigorous testing provides assurances of interoperability as
customers build and deploy solutions using Red Hat GFS with EMC CLARiiON and EMC Celerra systems
and software."

"NetApp is committed to providing the most compelling solutions that address customers' pressing
data management needs," said Patrick Rogers, vice president of Partner and Alliances Marketing at
Network Appliance. "NetApp support of Red Hat GFS running over our SAN interfaces provides an
important new alternative for customers seeking a scalable file system for Linux environments,
while retaining the NetApp advantage of simplified data management, through our unique storage
technologies."

Contact:

     Red Hat
     Leigh Day, 919-754-4369
     lday@redhat.com
     or
     Kathryn Bishop, 919-754-4289
     kbishop@redhat.com

For more information on Red Hat GFS, visit http://www.redhat.com or call 866-2-REDHAT.

About Red Hat, Inc.

Red Hat, the world's leading open source and Linux provider, is headquartered in Raleigh, NC with
satellite offices spanning the globe. Red Hat is leading Linux and open source solutions into the
mainstream by making high quality, low cost technology accessible. Red Hat provides operating
system software along with middleware, applications and management solutions. Red Hat also offers
support, training and consulting services to its customers worldwide and through top-tier
partnerships. Red Hat's open source strategy offers customers a long term plan for building
infrastructures that are based on and leverage open source technologies with focus on security and
ease of management. Learn more: http://www.redhat.com

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