Serial Storage Architecture

Serial Storage Architecture (SSA) is a serial transport protocol used to attach disk drives to servers.

It was invented by Ian Judd of IBM in 1990. IBM produced a number of successful products based upon this standard before it was overtaken by the more widely adopted Fibre Channel protocol.

SSA was promoted as an open standard by the SSA Industry Association.

A number of vendors including IBM, Pathlight Technologies and Viacom produced products based on SSA. It was also adopted as an ANSI X3T10.1 standard.

SSA devices are logically SCSI devices and conform to all of the SCSI command protocols.

SSA provides data protection for critical applications by helping to ensure that a single cable failure will not prevent access to data. All the components in a typical SSA subsystem are connected by bi-directional cabling.

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