Editing Serial Storage Architecture (section)

{{short description|Disk drive protocol}}

{{Refimprove|date=April 2024}}

'''Serial Storage Architecture''' (SSA) was a serial transport protocol used to attach [[disk drive]]s to [[Server (computing)|server computer]]s. It was developed by [[IBM]] employee [[Ian Judd]] in 1990 to provide [[data redundancy]] for critical applications. SSA was deployed in server RAID environments, where it was capable of providing for up to 80&nbsp;[[Megabyte|MB]]/s of data throughput, with sustained data rates as high as 60&nbsp;MB/s in non-RAID mode and 35&nbsp;MB/s in RAID mode.

SSA was promoted as an open standard by the SSA Industry Association, unlike its predecessor, the first generation Serial Disk Subsystem.<ref>IBM 7133 Serial Disk Systems Presentation Guide, pp. 9–10</ref> A number of vendors including IBM, [[Pathlight Technology]] and Vicom Systems produced products based on SSA. It was also adopted as an [[American National Standards Institute]] (ANSI) X3T10.1 standard. SSA devices are logically [[SCSI]] devices and conform to all of the [[SCSI command]] protocols.