Industry Analyst Report Shows That NetApp Continues Leadership in NAS and Unified Storage Market

Sunnyvale, Calif. - May 30, 2007 -- Network Appliance, Inc. (NASDAQ: NTAP) today announced its continued leadership position in the NAS and unified storage markets. According to the May 2007 Gartner Inc. report, "Market Share: NAS/Unified Storage, Worldwide, 2006,"1 NetApp leads the overall worldwide NAS and unified storage market with 54%2 revenue market share and 53%3 capacity market share. The NetApp position in the NAS and unified storage gateway market grew faster than that of the competition, posting 42%4 market share in revenue. In addition to its leadership in the overall NAS unified storage market, NetApp is also the leader in revenue and capacity shipped for both the high-end and midrange NAS markets.5

"We believe our continued leadership in unified storage and NAS demonstrates that our customers find value in our products and services," said Elisa Steele, vice president of Corporate Marketing at Network Appliance. "Our data center solutions help our customers continue to address changing business needs with maximized productivity, increased availability, and reduced costs."

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 simplify data management. Information about Network Appliance™ solutions and services is available at
www.netapp.com.

(1) Gartner Inc., "Market Share: NAS/Unified Storage, Worldwide, 2006," Pushan Rinnen, May 2007.
(2) Table 1-8, NAS/Unified Storage Vendors by Revenue.
(3) Table 1-9, NAS/Unified Storage Vendors by Raw Capacity Shipped.
(4) Table 6-3, NAS/Unified Storage Gateway Vendors by Revenue.
(5) Table 4-5, Midrange Stand-Alone NAS/Unified Storage Vendors by Revenue; Table 4-5, Midrange Stand-Alone NAS/Unified Storage Vendors by Raw Capacity Shipped; Table 5-4, High-End NAS/Unified Storage Vendors by Revenue; Table 5-5, High-End NAS/Unified Storage Vendors by Raw Capacity Shipped

Press Contact:
Jodi Baumann
Network Appliance, Inc.
(408) 822-3974
jodi@netapp.com