信息技术.小型计算机系统接口(SCSI).第222部分:SCSI的纤维信道协议.第二版(FCP-2)

[中文适用范围]： ISO/IEC 14776 的这一部分定义了 SCSI 光纤通道协议 (FCP) 的第二版本。 ISO/IEC 14776 的这一部分是用于将 SCSI 命令集应用到光纤通道的映射协议。 它定义了如何使用光纤通道服务和定义的信息单元 (IU) 来执行 SCSI-3 架构模型 – 2 (SAM-2) 定义的服务。 第二个版本包括对第一个版本的补充和澄清，删除了其他标准中现在包含的信息，并描述了光纤通道协议的附加错误恢复功能。 [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. This international standard defines a Fibre Channel mapping layer (FC-4) that uses the services defined by NCITS Project 1311D, Fibre Channel Framing and Signaling Interface (FC-FS) to transmit SCSI command, data, and status information between a SCSI initiator and a SCSI target. The use of this standard enables the transmission of standard SCSI command formats, the transmission of standard SCSI data and parameter strings, and the receipt of SCSI status and sense information across the Fibre Channel using only the standard Fibre Channel frame and sequence formats. The Fibre Channel protocol operates with Fibre Channel Classes of Service 1, 2, and 3 and operates across Fibre Channel fabrics and arbitrated loops.