Adaptec and Distributed Processing Technology (DPT) have signed letters of intent confirming that Adaptec will buy the storage-solutions company.

The $235-million deal is part of an attempt by Adaptec to strengthen its position in the high-end RAID (Redundant Array of Independent Disks) market.

Adaptec states: "The demand for storage capacity continues to grow explosively, and is fuelled by the Internet and user demands for on-line access to information. RAID provides high performance and enhanced data protection for storage, and is important in a non-stop computing world."

Bob Schultz, chief operating officer of Adaptec, said: "Our combined RAID engineering team will be the industry's best, and should help us accelerate product introductions and expand into new market segments."

Adaptec also hopes that the acquisition of DPT will open doors in the UNIX market.