Brocade is getting into the $1 billion host bus adapter market, as part of its expansion in storage area networks.

Buoyed by a quarter in which its file-area network revenue doubled, Brocade made the leap into host bus adapters via a partnership with LSI and the acquisition of Silverstream Systems.

Brocade said that only as many as 20 percent of servers are attached to shared storage and that playing in the host bus adapter market will complement its storage-area network offerings of Fibre Channel switches and directors, and SAN and file-area network software. The market for host bus adapters, which has been controlled by QLogic and Emulex, is estimated to be approximately $1.1 billion this year, according to market research firm Dell'Oro.

Brocade will introduce its 2110 iSCSI Initiator host bus adapter that allows Windows or Linux servers to connect to the Gigabit Ethernet network and send block-based SAN data across it. It will be based on technology acquired from Silverstream.

Brocade is also launching a family of 4Gbit/s Fibre Channel host bus adapters that will connect servers to SAN storage. The host bus adapters will feature single and dual ports, and support a variety of operating systems. This host bus adapter will be offered in partnership with LSI.

Brocade also outlined plans to manufacture 8Gbit/s Fibre Channel and 10Gbit/s Ethernet products in 2008.

The Brocade 2110 iSCSI Initiator is available now from Brocade OEMs such as EMC, IBM and HP. The Brocade 4Gbit/s Fibre Channel host bus adapters are expected to be available by the end of this month.