SCSI/ATA Translation - 5 (SAT-5 r01a)

This standard provides a common set of definitions and requirements to establish common behavior among implementations that emulate SCSI device behavior through the combined use of ATA devices and a SCSI / ATA Translation Layer (SATL). The SATL may reside in a host-based software or firmware, or it may reside in a separate component (e.g., a host bus adapter or external controller) with a separate processing unit to perform the translation. A SATL and ATA device combination may provide a functional subset of common SCSI capabilities. There is also a range of optional emulated SCSI capabilities that may be supported, depending on the capabilities of the SATL.
This standard defines SATL capabilities in terms of SCSI capabilities as defined by the applicable SCSI standards and working drafts, and defines the elements and use of ATA protocol to provide those SCSI capabilities and services in a consistent manner among SAT implementations that implement as described by this standard.