标准摘要
[中文适用范围]： ISO/IEC 14776 的这一部分定义了对所有 SCSI 设备强制和可选的 SCSI 命令。 它还定义了可应用于任何设备型号的 SCSI 命令。 由于主机处理器是任何 SCSI 域的一部分，因此该标准中定义了处理器设备模型。 该标准还定义了 SCSI 处理器设备可以实现的命令。 一些目标 SCSI 设备可以实现处理器设备模型的启动器子集，以支持 SCSI-3 体系结构模型中定义的异步事件报告功能。 [外文原描述]： The SCSI protocol is designed to provide an efficient peer-to-peer I/O bus with the maximum number of hosts and peripherals determined by the bus width (8 or 16). Data may be transferred asynchronously or synchronously at rates that depend primarily on device implementation and cable length. SCSI is an I/O interface that may be operated over a wide range of media and transfer rates. The set of SCSI standards provides for many different types of SCSI devices (disks, tapes, printers, scanners and many more), and specifies the interfaces, functions, and operations necessary to ensure interoperability between conforming SCSI implementations. This standard is a functional description of a device model that is applicable to all SCSI devices, and defines the SCSI commands that are mandatory and optional for all SCSI devices. Conforming implementations may employ any design technique that does not violate interoperability.
英文名称Information technology - Small computer system interface (SCSI) - Part 452: Primary Commands-2 (SPC-2)