Pathlight Technology was a pioneer in the field of Storage Area Networks. Based in Ithaca, NY, Pathlight was formed in 1994 as a spin-out from Ironics, a manufacturer of VME computer, IO and memory boards.

Pathlight was involved in the development of Serial Storage Architecture

Serial Storage Architecture

Serial Storage Architecture is a serial transport protocol used to attach disk drives to servers. It was invented by Ian Judd of IBM in 1990...

 products, and in Fibre Channel

Fibre Channel

Fibre Channel, or FC, is a gigabit-speed network technology primarily used for storage networking. Fibre Channel is standardized in the T11 Technical Committee of the InterNational Committee for Information Technology Standards , an American National Standards Institute –accredited standards...

 products.

Pathlight merged with ADIC

Advanced Digital Information Corporation

Advanced Digital Information Corporation was an independent American manufacturer of tape libraries and storage management software which is now part of Quantum Corp...

 in 2001.

Products

One of the significant products from Pathlight was the SAN Gateway, which provided multi-directional bridging

Bridging (networking)

Bridging is a forwarding technique used in packet-switched computer networks. Unlike routing, bridging makes no assumptions about where in a network a particular address is located. Instead, it depends on flooding and examination of source addresses in received packet headers to locate unknown...

 between multiple Parallel SCSI

Parallel SCSI

Parallel SCSI is one of the interface implementations in the SCSI family. In addition to being a data bus, SPI is a parallel electrical bus: There is one set of electrical connections stretching from one end of the SCSI bus to the other. A SCSI device attaches to the bus but does not interrupt it...

 ports and multiple Fibre Channel ports. IBM

IBM

International Business Machines Corporation or IBM is an American multinational technology and consulting corporation headquartered in Armonk, New York, United States. IBM manufactures and sells computer hardware and software, and it offers infrastructure, hosting and consulting services in areas...

teamed with Pathlight to provide the SAN Data Gateway (IBM Product 2108-G07 ) and SAN Data Gateway Router (IBM Product 2108-R03 ).