Network Appliance Creates Enterprise NAS Gateway Solution with Hitachi Data Systems

Sunnyvale, Calif. - April 15, 2003 -- Network Appliance, Inc. (NASDAQ:NTAP) today announced the availability of its codeveloped, cobranded HDS NetApp Enterprise NAS Gateway created in cooperation with Hitachi Data Systems Corporation. The gateway enables HDS customers to leverage NetApp's high performing and scalable storage solutions in their Hitachi Freedom Storage™ system environments. With the gateway HDS customer can now consolidate disparate SAN, NAS, and DAS islands into a common open storage pool under the HiCommand™ Management Framework, leading to reduced complexity within customers' IT infrastructures and lower management costs.

HDS customers can now achieve the benefits associated with NetApp storage solutions in their HDS environments when using the HDS NetApp Enterprise NAS Gateway. The gateway can be deployed in a variety of storage architectures to provide better storage asset utilization, storage resource consolidation, or simplified management of complex storage deployments for a variety of technical and business applications. For HDS customers who have deployed Fibre Channel SANs, the addition of a NAS gateway allows data accessibility to a broader range of servers and applications and helps today's business share its valuable data across wider corporate networks.

"Customers need solutions that extend their SAN deployments with additional capabilities for data and file sharing over broader corporate networks," said Mark Santora, senior vice president of marketing at Network Appliance. "HDS Customers can now deploy the HDS NetApp Enterprise NAS Gateway to expand and enhance the functionality of their existing HDS SAN infrastructure and easily provision SAN storage for NAS applications. Together, NetApp and HDS are able to provide a best-in-class solution that helps customers integrate storage resources on their own terms, according to their own needs, and without compromise."

The HDS NetApp Enterprise NAS Gateway is a special-purpose NAS server that can attach directly or through a Fibre Channel SAN fabric to external Hitachi Freedom Storage systems rather than relying on in-the-server storage. The solution thus leverages customers' existing HDS investments in enterprise-level storage and SAN infrastructures to provide scalable, high-performance file access services using inexpensive Ethernet connections that is common is NetApp systems. The resulting consolidation of storage maximizes flexibility in planning storage growth, improves storage utilization, and taps the full value of Hitachi Freedom Storage systems and management software when combined with NetApp storage systems and software. The result is reduced operational costs through vastly simplified enterprise data management, improved data protection, and greater disaster preparedness.

Availability

The solutions within the HDS NetApp Enterprise NAS Gateway are included in the gFiler series. The GF940 and GF960 (and clustered versions) scale in capacity to 48TB, attach to the Hitachi Freedom Storage™ Lightning 9900™ V Series systems, and are available immediately. The GF825 and clustered version of the GF825 scale in capacity to 6TB, attach to Thunder 9500 V Series systems, and will be available in the middle of the year. The NAS Gateway solutions will be available exclusively through Hitachi Data Systems.

About Network Appliance

Network Appliance is a world leader in unified storage solutions for today's data-intensive enterprise. Since its inception in 1992, Network Appliance has delivered technology, product, and partner firsts that continue to drive the evolution of storage. Information about Network Appliance™ solutions and services is available at www.netapp.com.

"Safe Harbor" Statement under U.S. Private Securities Litigation Reform Act of 1955
The statement regarding future product availability are forward-looking statements within the meaning of the U.S. Private Securities Litigation Reform Act of 1955. Forward-looking statements include any statement regarding future events or future financial performance of Network Appliance, Inc. that involve risk or uncertainties. In evaluating these statements readers should specifically consider various factors that could cause actual events or results to differ materially from those indicated, including without limitation, continuing decline in the general economic conditions, product schedules, product availability, customer demand for products and services, customer acceptance of product architectures, increased competition, and other important factors as described in Network Appliance, Inc. reports and documents filed from time to time with the Securities and Exchange Commission, including its most recently submitted 10-K and 10-Q.

Contact:
Jaime Leigh Le
Network Appliance
408.822.3761
jle@netapp.com