NetApp, Inc., formerly Network Appliance, Inc., is an American computer storage and data management company headquartered in Sunnyvale, California. It is a member of the NASDAQ-100. It was ranked on the Fortune 500 for the first time in 2012.
The line of NetApp filers has served as the company's flagship product from the very beginning. A filer is a type of disk storage device which owns and controls a file system, and presents files and directories to hosts over the network. This scheme is sometimes called file storage, as opposed to the block storage which major storage vendors like EMC Corporation and Hitachi Data Systems have traditionally provided.
NetApp's filers initially used NFS and CIFS protocols based on standard local area networks (LANs), whereas block storage consolidation required storage area networks (SANs) implemented with the Fibre Channel (FC) protocol. In 2002, in an attempt to increase market share, NetApp added block storage access as well. Today, NetApp systems support it via FC protocol, the iSCSI protocol, and the emerging Fibre Channel over Ethernet (FCoE) protocol.