Network Appliance Hosts Teleconference and Webcast to Discuss Strategic Storage Relationship with IBM

Sunnyvale, Calif. - April 6, 2005 - Network Appliance, Inc. (NASDAQ: NTAP), a leading provider of enterprise storage solutions, will host a teleconference and Webcast to discuss details of the strategic storage relationship with IBM announced today.

The conference call will be broadcast live via the Internet at http://investors.netapp.com/ on Wednesday, April 6, 2005 at 9:00 a.m. Eastern Time. This press release and any other information related to the call will be posted to the NetApp® website at www.netapp.com.

The conference call will also be available live in a listen-only format at 1-800-561-2813 in the United States and 1-617-614-3529 outside the United States. The passcode for both numbers is 64924900.

A replay of the call will be available following completion of the live call by dialing 1-888-286-8010 in the United States and 1-617-801-6888 outside the United States. The replay passcode for both numbers is 35962547.

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.

Press Contact:
Eric Brown
Network Appliance, Inc.
408-822-3463
ebrown@netapp.com

Investor Contact:
Billie Fagenstrom
Network Appliance, Inc.
(408) 822-6428
billief@netapp.com